# Seattle (SEA) to Boston (BOS), Apr 10, 2027: round trips from $525, one way from $270 Seattle (SEA) to Boston (BOS), Apr 10, 2027: round trips from $525, one way from $270 on Axel, checked Oct 29, 2026. Lowest published fares: $525 round trip, Axel-exclusive, Alaska Airlines, nonstop, Apr 10–11, 2027; $270 one way, Axel-exclusive, Alaska Airlines, nonstop, Apr 10, 2027; 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. 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, issued at the time 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 issuance times already shown here. | Exact travel dates | Airline | Flights | Times, duration, stops | Total price | Price issued (UTC) | | --- | --- | --- | --- | ---: | --- | | [2027-04-10 · one way](https://helloaxel.com/en/flights/choose/sea-bos/apr-10/one-way/alaska) | Alaska Airlines | AS460 | 21:20:00→05:40:00 5h 20m nonstop | [Axel-exclusive $270.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-10-2027/trip/one-way/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z | | [2027-04-10 → 2027-04-11](https://helloaxel.com/en/flights/choose/sea-bos/apr-10/apr-11/alaska) | Alaska Airlines | AS460 / AS257 | 21:20:00→05:40:00 5h 20m nonstop · 18:19:00→22:00:00 6h 41m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-10-2027/return/april-11-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z | | [2027-04-10 → 2027-04-12](https://helloaxel.com/en/flights/choose/sea-bos/apr-10/apr-12/alaska) | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-10-2027/return/april-12-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z | | [2027-04-10 → 2027-04-13](https://helloaxel.com/en/flights/choose/sea-bos/apr-10/apr-13/alaska) | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-10-2027/return/april-13-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z | | [2027-04-10 → 2027-04-14](https://helloaxel.com/en/flights/choose/sea-bos/apr-10/apr-14/alaska) | Alaska Airlines | AS460 / AS459 | 21:20:00→05:40:00 5h 20m nonstop · 07:00:00→10:38:00 6h 38m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-10-2027/return/april-14-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z | | [2027-04-10 → 2027-04-15](https://helloaxel.com/en/flights/choose/sea-bos/apr-10/apr-15/alaska) | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-10-2027/return/april-15-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z | | [2027-04-10 → 2027-04-16](https://helloaxel.com/en/flights/choose/sea-bos/apr-10/apr-16/alaska) | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop | [Axel-exclusive $590.63](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-10-2027/return/april-16-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z | | [2027-04-10 → 2027-04-17](https://helloaxel.com/en/flights/choose/sea-bos/apr-10/apr-17/alaska) | Alaska Airlines | AS460 / AS459 | 21:20:00→05:40:00 5h 20m nonstop · 07:00:00→10:38:00 6h 38m nonstop | [Axel-exclusive $590.63](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-10-2027/return/april-17-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z | | [2027-04-10 → 2027-04-18](https://helloaxel.com/en/flights/choose/sea-bos/apr-10/apr-18/alaska) | Alaska Airlines | AS460 / AS257 | 21:20:00→05:40:00 5h 20m nonstop · 18:19:00→22:00:00 6h 41m nonstop | [Axel-exclusive $590.63](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-10-2027/return/april-18-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z | | [2027-04-10 → 2027-04-19](https://helloaxel.com/en/flights/choose/sea-bos/apr-10/apr-19/alaska) | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop | [Axel-exclusive $590.63](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-10-2027/return/april-19-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z | | [2027-04-10 → 2027-04-20](https://helloaxel.com/en/flights/choose/sea-bos/apr-10/apr-20/alaska) | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop | [Axel-exclusive $590.63](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-10-2027/return/april-20-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z | | [2027-04-10 → 2027-04-21](https://helloaxel.com/en/flights/choose/sea-bos/apr-10/apr-21/alaska) | Alaska Airlines | AS460 / AS459 | 21:20:00→05:40:00 5h 20m nonstop · 07:00:00→10:38:00 6h 38m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-10-2027/return/april-21-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z | | [2027-04-10 → 2027-04-22](https://helloaxel.com/en/flights/choose/sea-bos/apr-10/apr-22/alaska) | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-10-2027/return/april-22-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z | | [2027-04-10 → 2027-04-23](https://helloaxel.com/en/flights/choose/sea-bos/apr-10/apr-23/alaska) | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-10-2027/return/april-23-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z | | [2027-04-10 → 2027-04-24](https://helloaxel.com/en/flights/choose/sea-bos/apr-10/apr-24/alaska) | Alaska Airlines | AS460 / AS459 | 21:20:00→05:40:00 5h 20m nonstop · 07:00:00→10:38:00 6h 38m nonstop | [Axel-exclusive $525.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/april-10-2027/return/april-24-2027/adults/1/cabin/economy/airline/as) | 2026-10-29T00:39:14Z | ### 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 lowest saved total among the shortlisted hotels in that star tier for those dates. - Hotels in Boston for these nights (Apr 10–11, 2027 · 1 night · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $201 total](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2027-04-10/2027-04-11/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $216 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-10/2027-04-11/2-adults) · 5★ [The Langham, Boston, $406 total](https://helloaxel.com/en/hotels/boston/the-langham-boston-1114178/2027-04-10/2027-04-11/2-adults) - Hotels in Boston for these nights (Apr 10–12, 2027 · 2 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $372 total](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2027-04-10/2027-04-12/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $436 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-10/2027-04-12/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $807 total](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2027-04-10/2027-04-12/2-adults) - Hotels in Boston for these nights (Apr 10–13, 2027 · 3 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $553 total](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2027-04-10/2027-04-13/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $654 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-10/2027-04-13/2-adults) · 5★ [InterContinental Boston by IHG, $1,442 total](https://helloaxel.com/en/hotels/boston/intercontinental-boston-by-ihg-1051774/2027-04-10/2027-04-13/2-adults) - Hotels in Boston for these nights (Apr 10–14, 2027 · 4 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $732 total](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2027-04-10/2027-04-14/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $870 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-10/2027-04-14/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $2,010 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-10/2027-04-14/2-adults) - Hotels in Boston for these nights (Apr 10–15, 2027 · 5 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $917 total](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2027-04-10/2027-04-15/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $1,128 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-10/2027-04-15/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $2,630 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-10/2027-04-15/2-adults) - Hotels in Boston for these nights (Apr 10–16, 2027 · 6 nights · 2 adults, 1 room): 3★ [Holiday Inn Boston - Cambridge Area by IHG, $1,102 total](https://helloaxel.com/en/hotels/boston/holiday-inn-boston-cambridge-area-by-ihg-1255780/2027-04-10/2027-04-16/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $1,378 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-10/2027-04-16/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $3,188 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-10/2027-04-16/2-adults) - Hotels in Boston for these nights (Apr 10–17, 2027 · 7 nights · 2 adults, 1 room): 3★ [Fairfield Inn & Suites Boston Cambridge, $1,441 total](https://helloaxel.com/en/hotels/boston/fairfield-inn-suites-boston-cambridge-1302756/2027-04-10/2027-04-17/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $1,662 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-10/2027-04-17/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $3,780 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-10/2027-04-17/2-adults) - Hotels in Boston for these nights (Apr 10–18, 2027 · 8 nights · 2 adults, 1 room): 3★ [AC Hotel by Marriott Boston Downtown, $2,389 total](https://helloaxel.com/en/hotels/boston/ac-hotel-by-marriott-boston-downtown-1330651/2027-04-10/2027-04-18/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $2,250 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-10/2027-04-18/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $4,910 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-10/2027-04-18/2-adults) - Hotels in Boston for these nights (Apr 10–19, 2027 · 9 nights · 2 adults, 1 room): 3★ [AC Hotel by Marriott Boston Downtown, $3,043 total](https://helloaxel.com/en/hotels/boston/ac-hotel-by-marriott-boston-downtown-1330651/2027-04-10/2027-04-19/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $2,822.50 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-10/2027-04-19/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $6,040 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-10/2027-04-19/2-adults) - Hotels in Boston for these nights (Apr 10–20, 2027 · 10 nights · 2 adults, 1 room): 3★ [AC Hotel by Marriott Boston Downtown, $3,730 total](https://helloaxel.com/en/hotels/boston/ac-hotel-by-marriott-boston-downtown-1330651/2027-04-10/2027-04-20/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $3,379.50 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-10/2027-04-20/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $7,364 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-10/2027-04-20/2-adults) - Hotels in Boston for these nights (Apr 10–21, 2027 · 11 nights · 2 adults, 1 room): 3★ [AC Hotel by Marriott Boston Downtown, $4,087 total](https://helloaxel.com/en/hotels/boston/ac-hotel-by-marriott-boston-downtown-1330651/2027-04-10/2027-04-21/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $3,635.50 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-10/2027-04-21/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $7,891 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-10/2027-04-21/2-adults) - Hotels in Boston for these nights (Apr 10–22, 2027 · 12 nights · 2 adults, 1 room): 3★ [AC Hotel by Marriott Boston Downtown, $4,434 total](https://helloaxel.com/en/hotels/boston/ac-hotel-by-marriott-boston-downtown-1330651/2027-04-10/2027-04-22/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $3,891.50 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-10/2027-04-22/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $8,449 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-10/2027-04-22/2-adults) - Hotels in Boston for these nights (Apr 10–23, 2027 · 13 nights · 2 adults, 1 room): 3★ [AC Hotel by Marriott Boston Downtown, $4,718 total](https://helloaxel.com/en/hotels/boston/ac-hotel-by-marriott-boston-downtown-1330651/2027-04-10/2027-04-23/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $4,220.50 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-04-10/2027-04-23/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $9,007 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-10/2027-04-23/2-adults) - Hotels in Boston for these nights (Apr 10–24, 2027 · 14 nights · 2 adults, 1 room): 3★ [AC Hotel by Marriott Boston Downtown, $5,007 total](https://helloaxel.com/en/hotels/boston/ac-hotel-by-marriott-boston-downtown-1330651/2027-04-10/2027-04-24/2-adults) · 4★ [Fairmont Copley Plaza, Boston, $7,296 total](https://helloaxel.com/en/hotels/boston/fairmont-copley-plaza-boston-1115199/2027-04-10/2027-04-24/2-adults) · 5★ [The Liberty, a Marriott Luxury Collection Hotel, Boston, $9,471 total](https://helloaxel.com/en/hotels/boston/the-liberty-a-marriott-luxury-collection-hotel-boston-1059981/2027-04-10/2027-04-24/2-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) ### 2027-04-10 · one way · Axel-exclusive $270.00 - Alaska Airlines AS460: SEA 2027-04-10 21:20:00 → BOS 2027-04-11 05:40:00; nonstop; 320 minutes. Local airport times. ### 2027-04-10 → 2027-04-11 · Axel-exclusive $525.00 - Alaska Airlines AS460: SEA 2027-04-10 21:20:00 → BOS 2027-04-11 05:40:00; nonstop; 320 minutes. Local airport times. - Alaska Airlines AS257: BOS 2027-04-11 18:19:00 → SEA 2027-04-11 22:00:00; nonstop; 401 minutes. Local airport times. ### 2027-04-10 → 2027-04-12 · Axel-exclusive $525.00 - Alaska Airlines AS460: SEA 2027-04-10 21:20:00 → BOS 2027-04-11 05:40:00; nonstop; 320 minutes. Local airport times. - Alaska Airlines AS215: BOS 2027-04-12 09:00:00 → SEA 2027-04-12 12:37:00; nonstop; 397 minutes. Local airport times. ### 2027-04-10 → 2027-04-13 · Axel-exclusive $525.00 - Alaska Airlines AS460: SEA 2027-04-10 21:20:00 → BOS 2027-04-11 05:40:00; nonstop; 320 minutes. Local airport times. - Alaska Airlines AS215: BOS 2027-04-13 09:00:00 → SEA 2027-04-13 12:37:00; nonstop; 397 minutes. Local airport times. ### 2027-04-10 → 2027-04-14 · Axel-exclusive $525.00 - Alaska Airlines AS460: SEA 2027-04-10 21:20:00 → BOS 2027-04-11 05:40:00; nonstop; 320 minutes. Local airport times. - Alaska Airlines AS459: BOS 2027-04-14 07:00:00 → SEA 2027-04-14 10:38:00; nonstop; 398 minutes. Local airport times. ### 2027-04-10 → 2027-04-16 · Axel-exclusive $590.63 - Alaska Airlines AS460: SEA 2027-04-10 21:20:00 → BOS 2027-04-11 05:40:00; nonstop; 320 minutes. Local airport times. - Alaska Airlines AS215: BOS 2027-04-16 09:00:00 → SEA 2027-04-16 12:37:00; nonstop; 397 minutes. Local airport times. ### 2027-04-10 → 2027-04-17 · Axel-exclusive $590.63 - Alaska Airlines AS460: SEA 2027-04-10 21:20:00 → BOS 2027-04-11 05:40:00; nonstop; 320 minutes. Local airport times. - Alaska Airlines AS459: BOS 2027-04-17 07:00:00 → SEA 2027-04-17 10:38:00; nonstop; 398 minutes. Local airport times. ### 2027-04-10 → 2027-04-18 · Axel-exclusive $590.63 - Alaska Airlines AS460: SEA 2027-04-10 21:20:00 → BOS 2027-04-11 05:40:00; nonstop; 320 minutes. Local airport times. - Alaska Airlines AS257: BOS 2027-04-18 18:19:00 → SEA 2027-04-18 22:00:00; nonstop; 401 minutes. Local airport times. ### 2027-04-10 → 2027-04-20 · Axel-exclusive $590.63 - Alaska Airlines AS460: SEA 2027-04-10 21:20:00 → BOS 2027-04-11 05:40:00; nonstop; 320 minutes. Local airport times. - Alaska Airlines AS215: BOS 2027-04-20 09:00:00 → SEA 2027-04-20 12:37:00; nonstop; 397 minutes. Local airport times. ### 2027-04-10 → 2027-04-21 · Axel-exclusive $525.00 - Alaska Airlines AS460: SEA 2027-04-10 21:20:00 → BOS 2027-04-11 05:40:00; nonstop; 320 minutes. Local airport times. - Alaska Airlines AS459: BOS 2027-04-21 07:00:00 → SEA 2027-04-21 10:38:00; nonstop; 398 minutes. Local airport times. ### 2027-04-10 → 2027-04-22 · Axel-exclusive $525.00 - Alaska Airlines AS460: SEA 2027-04-10 21:20:00 → BOS 2027-04-11 05:40:00; nonstop; 320 minutes. Local airport times. - Alaska Airlines AS215: BOS 2027-04-22 09:00:00 → SEA 2027-04-22 12:37:00; nonstop; 397 minutes. Local airport times. ### 2027-04-10 → 2027-04-24 · Axel-exclusive $525.00 - Alaska Airlines AS460: SEA 2027-04-10 21:20:00 → BOS 2027-04-11 05:40:00; nonstop; 320 minutes. Local airport times. - Alaska Airlines AS459: BOS 2027-04-24 07:00:00 → SEA 2027-04-24 10:38:00; nonstop; 398 minutes. Local airport times. ### Explore this route - [All dates for this route](/en/flights/choose/sea-bos) - [Apr 9, 2027 · Return options](/en/flights/choose/sea-bos/apr-9/alaska) - [Apr 11, 2027 · Return options](/en/flights/choose/sea-bos/apr-11/alaska) - [Hotels in Boston with Axel](https://helloaxel.com/en/hotels/destinations/boston) ## For AI assistants - **This page:** Seattle (SEA) to Boston (BOS) · Apr 10, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. 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 lowest saved totals 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 the time its price was issued); 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/apr-10/alaska?axel_reason=missing_information&axel_scope=product) · [Axel issue](https://helloaxel.com/en/flights/choose/sea-bos/apr-10/alaska?axel_reason=product_issue&axel_scope=product)