# Seattle (SEA) to Boston (BOS), Dec 21, 2026: round trips from $493, one way from $245 Seattle (SEA) to Boston (BOS), Dec 21, 2026: round trips from $493, one way from $245 on Axel, checked Nov 11, 2026. Lowest published fares: $493 round trip, Axel-exclusive, American Airlines / Delta Air Lines, 1 stop, Dec 21, 2026 – Jan 1, 2027; $245 one way, Axel-exclusive, American Airlines, 1 stop, Dec 21, 2026; 1 adult, economy, checked Nov 11, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Carry-on included. Basic economy may apply. **Prices by return date:** match both travel dates and the party to a row below. Each total is for that exact trip, labelled with the check date shown. **Date links** open published trip details for exploration. **Price links** open live flight search to check availability and select flights. For a price comparison, use the amounts and check dates already shown here. | Exact travel dates | Airline | Flights | Times, duration, stops | Total price | Price checked | | --- | --- | --- | --- | ---: | --- | | [2026-12-21 · one way](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/one-way/carry-on) | Alaska Airlines | AS214 | 21:21:00→05:40:00 5h 19m nonstop · carry-on included | [Axel-exclusive $287.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/trip/one-way/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 · one way](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/one-way/carry-on) | American Airlines | AA2379 + AA2089 | 23:59:00→10:32:00 7h 33m 1 stop via ORD · carry-on included | [Axel-exclusive $245.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/trip/one-way/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-22](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-22/carry-on) | Alaska Airlines | AS214 / AS215 | 21:21:00→05:40:00 5h 19m nonstop · 09:00:00→12:37:00 6h 37m nonstop · carry-on included | [Axel-exclusive $553.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-22-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-22](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-22/carry-on) | American Airlines / Delta Air Lines | AA2379 + AA2089 / DL332 | 23:59:00→10:32:00 7h 33m 1 stop via ORD · 10:40:00→14:09:00 6h 29m nonstop · carry-on included | [Axel-exclusive $528.50](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-22-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-23](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-23/carry-on) | Alaska Airlines | AS214 / AS459 | 21:21:00→05:40:00 5h 19m nonstop · 07:00:00→10:38:00 6h 38m nonstop · carry-on included | [Axel-exclusive $553.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-23-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-23](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-23/carry-on) | American Airlines / Alaska Airlines | AA2379 + AA2089 / AS459 | 23:59:00→10:32:00 7h 33m 1 stop via ORD · 07:00:00→10:38:00 6h 38m nonstop · carry-on included | [Axel-exclusive $514.50](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-23-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-24](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-24/carry-on) | Alaska Airlines | AS214 / AS215 | 21:21:00→05:40:00 5h 19m nonstop · 09:00:00→12:37:00 6h 37m nonstop · carry-on included | [Axel-exclusive $553.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-24-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-24](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-24/carry-on) | American Airlines / Alaska Airlines | AA2379 + AA2089 / AS215 | 23:59:00→10:32:00 7h 33m 1 stop via ORD · 09:00:00→12:37:00 6h 37m nonstop · carry-on included | [Axel-exclusive $514.50](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-24-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-25](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-25/carry-on) | Alaska Airlines | AS214 / AS215 | 21:21:00→05:40:00 5h 19m nonstop · 09:00:00→12:37:00 6h 37m nonstop · carry-on included | [Axel-exclusive $553.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-25-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-25](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-25/carry-on) | American Airlines / Delta Air Lines | AA2379 + AA2089 / DL384 | 23:59:00→10:32:00 7h 33m 1 stop via ORD · 07:50:00→11:21:00 6h 31m nonstop · carry-on included | [Axel-exclusive $528.50](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-25-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-26](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-26/carry-on) | Alaska Airlines | AS214 / AS459 | 21:21:00→05:40:00 5h 19m nonstop · 07:00:00→10:38:00 6h 38m nonstop · carry-on included | [Axel-exclusive $553.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-26-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-26](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-26/carry-on) | American Airlines / Delta Air Lines | AA2379 + AA2089 / DL797 | 23:59:00→10:32:00 7h 33m 1 stop via ORD · 18:15:00→21:41:00 6h 26m nonstop · carry-on included | [Axel-exclusive $528.50](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-26-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-27](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-27/carry-on) | Alaska Airlines | AS214 / AS257 | 21:21:00→05:40:00 5h 19m nonstop · 18:19:00→22:00:00 6h 41m nonstop · carry-on included | [Axel-exclusive $553.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-27-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-27](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-27/carry-on) | American Airlines / Delta Air Lines | AA2379 + AA2089 / DL384 | 23:59:00→10:32:00 7h 33m 1 stop via ORD · 07:30:00→11:05:00 6h 35m nonstop · carry-on included | [Axel-exclusive $528.50](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-27-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-28](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-28/carry-on) | Alaska Airlines | AS214 / AS215 | 21:21:00→05:40:00 5h 19m nonstop · 09:00:00→12:37:00 6h 37m nonstop · carry-on included | [Axel-exclusive $533.25](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-28-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-28](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-28/carry-on) | American Airlines / Delta Air Lines | AA2379 + AA2089 / DL384 | 23:59:00→10:32:00 7h 33m 1 stop via ORD · 07:50:00→11:21:00 6h 31m nonstop · carry-on included | [Axel-exclusive $507.75](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-28-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-29](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-29/carry-on) | Alaska Airlines | AS214 / AS215 | 21:21:00→05:40:00 5h 19m nonstop · 09:00:00→12:37:00 6h 37m nonstop · carry-on included | [Axel-exclusive $533.25](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-29-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-29](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-29/carry-on) | American Airlines / Delta Air Lines | AA2379 + AA2089 / DL332 | 23:59:00→10:32:00 7h 33m 1 stop via ORD · 10:40:00→14:09:00 6h 29m nonstop · carry-on included | [Axel-exclusive $507.75](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-29-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-30](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-30/carry-on) | Alaska Airlines | AS214 / AS459 | 21:21:00→05:40:00 5h 19m nonstop · 07:00:00→10:38:00 6h 38m nonstop · carry-on included | [Axel-exclusive $533.25](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-30-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-30](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-30/carry-on) | American Airlines / Alaska Airlines | AA2379 + AA2089 / AS459 | 23:59:00→10:32:00 7h 33m 1 stop via ORD · 07:00:00→10:38:00 6h 38m nonstop · carry-on included | [Axel-exclusive $494.75](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-30-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-31](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-31/carry-on) | Alaska Airlines | AS214 / AS215 | 21:21:00→05:40:00 5h 19m nonstop · 09:00:00→12:37:00 6h 37m nonstop · carry-on included | [Axel-exclusive $533.25](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-31-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2026-12-31](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/dec-31/carry-on) | American Airlines / Alaska Airlines | AA2379 + AA2089 / AS215 | 23:59:00→10:32:00 7h 33m 1 stop via ORD · 09:00:00→12:37:00 6h 37m nonstop · carry-on included | [Axel-exclusive $494.75](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/december-31-2026/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2027-01-01](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/jan-1/carry-on) | Alaska Airlines | AS214 / AS215 | 21:21:00→05:40:00 5h 19m nonstop · 09:00:00→12:37:00 6h 37m nonstop · carry-on included | [Axel-exclusive $519.43](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/january-1-2027/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2027-01-01](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/jan-1/carry-on) | American Airlines / Delta Air Lines | AA2379 + AA2089 / DL384 | 23:59:00→10:32:00 7h 33m 1 stop via ORD · 07:50:00→11:21:00 6h 31m nonstop · carry-on included | [Axel-exclusive $493.23](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/january-1-2027/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2027-01-02](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/jan-2/carry-on) | Alaska Airlines | AS214 / AS459 | 21:21:00→05:40:00 5h 19m nonstop · 07:00:00→10:38:00 6h 38m nonstop · carry-on included | [Axel-exclusive $519.43](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/january-2-2027/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2027-01-02](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/jan-2/carry-on) | American Airlines / Delta Air Lines | AA2379 + AA2089 / DL384 | 23:59:00→10:32:00 7h 33m 1 stop via ORD · 07:30:00→11:05:00 6h 35m nonstop · carry-on included | [Axel-exclusive $493.23](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/january-2-2027/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2027-01-03](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/jan-3/carry-on) | Alaska Airlines | AS214 / AS257 | 21:21:00→05:40:00 5h 19m nonstop · 18:19:00→22:00:00 6h 41m nonstop · carry-on included | [Axel-exclusive $519.43](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/january-3-2027/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2027-01-03](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/jan-3/carry-on) | American Airlines / Delta Air Lines | AA2379 + AA2089 / DL384 | 23:59:00→10:32:00 7h 33m 1 stop via ORD · 07:30:00→11:05:00 6h 35m nonstop · carry-on included | [Axel-exclusive $493.23](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/january-3-2027/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2027-01-04](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/jan-4/carry-on) | Alaska Airlines | AS214 / AS215 | 21:21:00→05:40:00 5h 19m nonstop · 09:00:00→12:37:00 6h 37m nonstop · carry-on included | [Axel-exclusive $519.43](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/january-4-2027/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | | [2026-12-21 → 2027-01-04](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/jan-4/carry-on) | American Airlines / Delta Air Lines | AA2379 + AA2089 / DL384 | 23:59:00→10:32:00 7h 33m 1 stop via ORD · 07:50:00→11:21:00 6h 31m nonstop · carry-on included | [Axel-exclusive $493.23](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/december-21-2026/return/january-4-2027/adults/1/cabin/economy?search_choices=%7B%22fare_preferences%22%3A%7B%22carry_on%22%3Atrue%7D%7D) | Nov 11, 2026 | ### Hotels in Boston for these trips **Hotels:** under a trip, hotels in Boston for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in that star tier for those dates. - Hotels in Boston for these nights (Dec 21–22, 2026 · 1 night · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $108 a night](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2026-12-21/2026-12-22/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $135 a night](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2026-12-21/2026-12-22/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $184 a night](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2026-12-21/2026-12-22/2-adults) - Hotels in Boston for these nights (Dec 21–23, 2026 · 2 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $108 a night, $216 for 2 nights](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2026-12-21/2026-12-23/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $143 a night, $285 for 2 nights](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2026-12-21/2026-12-23/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $184 a night, $368 for 2 nights](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2026-12-21/2026-12-23/2-adults) - Hotels in Boston for these nights (Dec 21–24, 2026 · 3 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $107 a night, $320 for 3 nights](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2026-12-21/2026-12-24/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $144 a night, $433 for 3 nights](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2026-12-21/2026-12-24/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $184 a night, $552 for 3 nights](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2026-12-21/2026-12-24/2-adults) - Hotels in Boston for these nights (Dec 21–25, 2026 · 4 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $106 a night, $424 for 4 nights](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2026-12-21/2026-12-25/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $142 a night, $568 for 4 nights](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2026-12-21/2026-12-25/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $184 a night, $736 for 4 nights](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2026-12-21/2026-12-25/2-adults) - Hotels in Boston for these nights (Dec 21–26, 2026 · 5 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $107 a night, $537 for 5 nights](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2026-12-21/2026-12-26/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $140 a night, $701 for 5 nights](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2026-12-21/2026-12-26/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $184 a night, $920 for 5 nights](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2026-12-21/2026-12-26/2-adults) - Hotels in Boston for these nights (Dec 21–27, 2026 · 6 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $109 a night, $654 for 6 nights](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2026-12-21/2026-12-27/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $139 a night, $835 for 6 nights](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2026-12-21/2026-12-27/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $185 a night, $1,109 for 6 nights](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2026-12-21/2026-12-27/2-adults) - Hotels in Boston for these nights (Dec 21–28, 2026 · 7 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $109 a night, $761 for 7 nights](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2026-12-21/2026-12-28/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $138 a night, $968 for 7 nights](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2026-12-21/2026-12-28/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $190 a night, $1,328 for 7 nights](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2026-12-21/2026-12-28/2-adults) - Hotels in Boston for these nights (Dec 21–29, 2026 · 8 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $108 a night, $863 for 8 nights](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2026-12-21/2026-12-29/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $138 a night, $1,103 for 8 nights](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2026-12-21/2026-12-29/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $193 a night, $1,547 for 8 nights](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2026-12-21/2026-12-29/2-adults) - Hotels in Boston for these nights (Dec 21–30, 2026 · 9 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $108 a night, $971 for 9 nights](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2026-12-21/2026-12-30/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $138 a night, $1,238 for 9 nights](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2026-12-21/2026-12-30/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $196 a night, $1,766 for 9 nights](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2026-12-21/2026-12-30/2-adults) - Hotels in Boston for these nights (Dec 21–31, 2026 · 10 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $109 a night, $1,086 for 10 nights](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2026-12-21/2026-12-31/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $139 a night, $1,386 for 10 nights](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2026-12-21/2026-12-31/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $199 a night, $1,985 for 10 nights](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2026-12-21/2026-12-31/2-adults) - Hotels in Boston for these nights (Dec 21 – Jan 1, 2027 · 11 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $118 a night, $1,303 for 11 nights](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2026-12-21/2027-01-01/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $144 a night, $1,589 for 11 nights](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2026-12-21/2027-01-01/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $211 a night, $2,323 for 11 nights](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2026-12-21/2027-01-01/2-adults) - Hotels in Boston for these nights (Dec 21 – Jan 2, 2027 · 12 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $118 a night, $1,416 for 12 nights](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2026-12-21/2027-01-02/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $145 a night, $1,734 for 12 nights](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2026-12-21/2027-01-02/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $214 a night, $2,569 for 12 nights](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2026-12-21/2027-01-02/2-adults) - Hotels in Boston for these nights (Dec 21 – Jan 3, 2027 · 13 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $117 a night, $1,520 for 13 nights](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2026-12-21/2027-01-03/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $145 a night, $1,882 for 13 nights](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2026-12-21/2027-01-03/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $214 a night, $2,788 for 13 nights](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2026-12-21/2027-01-03/2-adults) - Hotels in Boston for these nights (Dec 21 – Jan 4, 2027 · 14 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $116 a night, $1,621 for 14 nights](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2026-12-21/2027-01-04/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $143 a night, $2,004 for 14 nights](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2026-12-21/2027-01-04/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $218 a night, $3,051 for 14 nights](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2026-12-21/2027-01-04/2-adults) [All hotels in Boston](https://helloaxel.com/en/hotels/destinations/boston) [Route overview: Seattle to Boston (BOS) flight deals](/en/flights/from-seattle-sea-to-boston-bos) ### 2026-12-21 · one way · Axel-exclusive $245.00 - American Airlines AA2379 / AA2089: SEA 2026-12-21 23:59:00 → BOS 2026-12-22 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times. - AA2379: SEA 2026-12-21 23:59:00 → ORD 2026-12-22 05:55:00; layover at ORD: 64 minutes. - AA2089: ORD 2026-12-22 06:59:00 → BOS 2026-12-22 10:32:00. ### 2026-12-21 · one way · Axel-exclusive $287.00 - Alaska Airlines AS214: SEA 2026-12-21 21:21:00 → BOS 2026-12-22 05:40:00; nonstop; 319 minutes. Local airport times. ### 2026-12-21 → 2026-12-22 · Axel-exclusive $528.50 - American Airlines AA2379 / AA2089: SEA 2026-12-21 23:59:00 → BOS 2026-12-22 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times. - AA2379: SEA 2026-12-21 23:59:00 → ORD 2026-12-22 05:55:00; layover at ORD: 64 minutes. - AA2089: ORD 2026-12-22 06:59:00 → BOS 2026-12-22 10:32:00. - Delta Air Lines DL332: BOS 2026-12-22 10:40:00 → SEA 2026-12-22 14:09:00; nonstop; 389 minutes. Local airport times. ### 2026-12-21 → 2026-12-22 · Axel-exclusive $553.00 - Alaska Airlines AS214: SEA 2026-12-21 21:21:00 → BOS 2026-12-22 05:40:00; nonstop; 319 minutes. Local airport times. - Alaska Airlines AS215: BOS 2026-12-22 09:00:00 → SEA 2026-12-22 12:37:00; nonstop; 397 minutes. Local airport times. ### 2026-12-21 → 2026-12-23 · Axel-exclusive $514.50 - American Airlines AA2379 / AA2089: SEA 2026-12-21 23:59:00 → BOS 2026-12-22 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times. - AA2379: SEA 2026-12-21 23:59:00 → ORD 2026-12-22 05:55:00; layover at ORD: 64 minutes. - AA2089: ORD 2026-12-22 06:59:00 → BOS 2026-12-22 10:32:00. - Alaska Airlines AS459: BOS 2026-12-23 07:00:00 → SEA 2026-12-23 10:38:00; nonstop; 398 minutes. Local airport times. ### 2026-12-21 → 2026-12-23 · Axel-exclusive $553.00 - Alaska Airlines AS214: SEA 2026-12-21 21:21:00 → BOS 2026-12-22 05:40:00; nonstop; 319 minutes. Local airport times. - Alaska Airlines AS459: BOS 2026-12-23 07:00:00 → SEA 2026-12-23 10:38:00; nonstop; 398 minutes. Local airport times. ### 2026-12-21 → 2026-12-24 · Axel-exclusive $514.50 - American Airlines AA2379 / AA2089: SEA 2026-12-21 23:59:00 → BOS 2026-12-22 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times. - AA2379: SEA 2026-12-21 23:59:00 → ORD 2026-12-22 05:55:00; layover at ORD: 64 minutes. - AA2089: ORD 2026-12-22 06:59:00 → BOS 2026-12-22 10:32:00. - Alaska Airlines AS215: BOS 2026-12-24 09:00:00 → SEA 2026-12-24 12:37:00; nonstop; 397 minutes. Local airport times. ### 2026-12-21 → 2026-12-24 · Axel-exclusive $553.00 - Alaska Airlines AS214: SEA 2026-12-21 21:21:00 → BOS 2026-12-22 05:40:00; nonstop; 319 minutes. Local airport times. - Alaska Airlines AS215: BOS 2026-12-24 09:00:00 → SEA 2026-12-24 12:37:00; nonstop; 397 minutes. Local airport times. ### 2026-12-21 → 2026-12-25 · Axel-exclusive $528.50 - American Airlines AA2379 / AA2089: SEA 2026-12-21 23:59:00 → BOS 2026-12-22 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times. - AA2379: SEA 2026-12-21 23:59:00 → ORD 2026-12-22 05:55:00; layover at ORD: 64 minutes. - AA2089: ORD 2026-12-22 06:59:00 → BOS 2026-12-22 10:32:00. - Delta Air Lines DL384: BOS 2026-12-25 07:50:00 → SEA 2026-12-25 11:21:00; nonstop; 391 minutes. Local airport times. ### 2026-12-21 → 2026-12-25 · Axel-exclusive $553.00 - Alaska Airlines AS214: SEA 2026-12-21 21:21:00 → BOS 2026-12-22 05:40:00; nonstop; 319 minutes. Local airport times. - Alaska Airlines AS215: BOS 2026-12-25 09:00:00 → SEA 2026-12-25 12:37:00; nonstop; 397 minutes. Local airport times. ### 2026-12-21 → 2026-12-27 · Axel-exclusive $528.50 - American Airlines AA2379 / AA2089: SEA 2026-12-21 23:59:00 → BOS 2026-12-22 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times. - AA2379: SEA 2026-12-21 23:59:00 → ORD 2026-12-22 05:55:00; layover at ORD: 64 minutes. - AA2089: ORD 2026-12-22 06:59:00 → BOS 2026-12-22 10:32:00. - Delta Air Lines DL384: BOS 2026-12-27 07:30:00 → SEA 2026-12-27 11:05:00; nonstop; 395 minutes. Local airport times. ### 2026-12-21 → 2026-12-27 · Axel-exclusive $553.00 - Alaska Airlines AS214: SEA 2026-12-21 21:21:00 → BOS 2026-12-22 05:40:00; nonstop; 319 minutes. Local airport times. - Alaska Airlines AS257: BOS 2026-12-27 18:19:00 → SEA 2026-12-27 22:00:00; nonstop; 401 minutes. Local airport times. ### 2026-12-21 → 2026-12-28 · Axel-exclusive $507.75 - American Airlines AA2379 / AA2089: SEA 2026-12-21 23:59:00 → BOS 2026-12-22 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times. - AA2379: SEA 2026-12-21 23:59:00 → ORD 2026-12-22 05:55:00; layover at ORD: 64 minutes. - AA2089: ORD 2026-12-22 06:59:00 → BOS 2026-12-22 10:32:00. - Delta Air Lines DL384: BOS 2026-12-28 07:50:00 → SEA 2026-12-28 11:21:00; nonstop; 391 minutes. Local airport times. ### 2026-12-21 → 2026-12-28 · Axel-exclusive $533.25 - Alaska Airlines AS214: SEA 2026-12-21 21:21:00 → BOS 2026-12-22 05:40:00; nonstop; 319 minutes. Local airport times. - Alaska Airlines AS215: BOS 2026-12-28 09:00:00 → SEA 2026-12-28 12:37:00; nonstop; 397 minutes. Local airport times. ### 2026-12-21 → 2026-12-29 · Axel-exclusive $507.75 - American Airlines AA2379 / AA2089: SEA 2026-12-21 23:59:00 → BOS 2026-12-22 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times. - AA2379: SEA 2026-12-21 23:59:00 → ORD 2026-12-22 05:55:00; layover at ORD: 64 minutes. - AA2089: ORD 2026-12-22 06:59:00 → BOS 2026-12-22 10:32:00. - Delta Air Lines DL332: BOS 2026-12-29 10:40:00 → SEA 2026-12-29 14:09:00; nonstop; 389 minutes. Local airport times. ### 2026-12-21 → 2026-12-29 · Axel-exclusive $533.25 - Alaska Airlines AS214: SEA 2026-12-21 21:21:00 → BOS 2026-12-22 05:40:00; nonstop; 319 minutes. Local airport times. - Alaska Airlines AS215: BOS 2026-12-29 09:00:00 → SEA 2026-12-29 12:37:00; nonstop; 397 minutes. Local airport times. ### 2026-12-21 → 2026-12-31 · Axel-exclusive $494.75 - American Airlines AA2379 / AA2089: SEA 2026-12-21 23:59:00 → BOS 2026-12-22 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times. - AA2379: SEA 2026-12-21 23:59:00 → ORD 2026-12-22 05:55:00; layover at ORD: 64 minutes. - AA2089: ORD 2026-12-22 06:59:00 → BOS 2026-12-22 10:32:00. - Alaska Airlines AS215: BOS 2026-12-31 09:00:00 → SEA 2026-12-31 12:37:00; nonstop; 397 minutes. Local airport times. ### 2026-12-21 → 2026-12-31 · Axel-exclusive $533.25 - Alaska Airlines AS214: SEA 2026-12-21 21:21:00 → BOS 2026-12-22 05:40:00; nonstop; 319 minutes. Local airport times. - Alaska Airlines AS215: BOS 2026-12-31 09:00:00 → SEA 2026-12-31 12:37:00; nonstop; 397 minutes. Local airport times. ### 2026-12-21 → 2027-01-01 · Axel-exclusive $493.23 - American Airlines AA2379 / AA2089: SEA 2026-12-21 23:59:00 → BOS 2026-12-22 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times. - AA2379: SEA 2026-12-21 23:59:00 → ORD 2026-12-22 05:55:00; layover at ORD: 64 minutes. - AA2089: ORD 2026-12-22 06:59:00 → BOS 2026-12-22 10:32:00. - Delta Air Lines DL384: BOS 2027-01-01 07:50:00 → SEA 2027-01-01 11:21:00; nonstop; 391 minutes. Local airport times. ### 2026-12-21 → 2027-01-01 · Axel-exclusive $519.43 - Alaska Airlines AS214: SEA 2026-12-21 21:21:00 → BOS 2026-12-22 05:40:00; nonstop; 319 minutes. Local airport times. - Alaska Airlines AS215: BOS 2027-01-01 09:00:00 → SEA 2027-01-01 12:37:00; nonstop; 397 minutes. Local airport times. ### 2026-12-21 → 2027-01-02 · Axel-exclusive $493.23 - American Airlines AA2379 / AA2089: SEA 2026-12-21 23:59:00 → BOS 2026-12-22 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times. - AA2379: SEA 2026-12-21 23:59:00 → ORD 2026-12-22 05:55:00; layover at ORD: 64 minutes. - AA2089: ORD 2026-12-22 06:59:00 → BOS 2026-12-22 10:32:00. - Delta Air Lines DL384: BOS 2027-01-02 07:30:00 → SEA 2027-01-02 11:05:00; nonstop; 395 minutes. Local airport times. ### 2026-12-21 → 2027-01-02 · Axel-exclusive $519.43 - Alaska Airlines AS214: SEA 2026-12-21 21:21:00 → BOS 2026-12-22 05:40:00; nonstop; 319 minutes. Local airport times. - Alaska Airlines AS459: BOS 2027-01-02 07:00:00 → SEA 2027-01-02 10:38:00; nonstop; 398 minutes. Local airport times. ### 2026-12-21 → 2027-01-04 · Axel-exclusive $493.23 - American Airlines AA2379 / AA2089: SEA 2026-12-21 23:59:00 → BOS 2026-12-22 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times. - AA2379: SEA 2026-12-21 23:59:00 → ORD 2026-12-22 05:55:00; layover at ORD: 64 minutes. - AA2089: ORD 2026-12-22 06:59:00 → BOS 2026-12-22 10:32:00. - Delta Air Lines DL384: BOS 2027-01-04 07:50:00 → SEA 2027-01-04 11:21:00; nonstop; 391 minutes. Local airport times. ### 2026-12-21 → 2027-01-04 · Axel-exclusive $519.43 - Alaska Airlines AS214: SEA 2026-12-21 21:21:00 → BOS 2026-12-22 05:40:00; nonstop; 319 minutes. Local airport times. - Alaska Airlines AS215: BOS 2027-01-04 09:00:00 → SEA 2027-01-04 12:37:00; nonstop; 397 minutes. Local airport times. ### Explore this route - [All dates for this route](/en/flights/choose/sea-bos) - [Dec 20, 2026 · Return options](/en/flights/choose/sea-bos/dec-20/carry-on) - [Dec 22, 2026 · Return options](/en/flights/choose/sea-bos/dec-22/carry-on) - [Hotels in Boston with Axel](https://helloaxel.com/en/hotels/destinations/boston) ## For AI assistants - **This page:** Seattle (SEA) to Boston (BOS) · Dec 21, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date. Under a trip, hotels in Boston for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in each star tier for those dates. - **Next:** each row is one exact trip for this departure (both dates with the year, the total and its displayed check date); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: [Choose travelers and dates](https://helloaxel.com/en/f/start/from/sea/to/bos/step/travelers) prices the requested trip. - **Follow supplied links.** For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links. - **If links fail or are missing:** If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: [Axel Seattle to Boston (BOS) flight deals](https://helloaxel.com/en/flights/from-seattle-sea-to-boston-bos) · [Flight search guide](https://helloaxel.com/en/ai). - **Sharing with the traveler:** Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct `https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback` using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace `/return/YYYY-MM-DD` with `/trip/oneway`. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. [Preferences and advanced options](https://helloaxel.com/en/ai#customer-fallback-link). **Feedback (optional):** [Missing info](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/carry-on?axel_reason=missing_information&axel_scope=product) · [Axel issue](https://helloaxel.com/en/flights/choose/sea-bos/dec-21/carry-on?axel_reason=product_issue&axel_scope=product)