# Seattle (SEA) to Boston (BOS) · Mar 2, 2027 · choose your return date 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 | Total price | Price issued (UTC) | | --- | --- | --- | ---: | --- | | [2027-03-02 · one way](https://helloaxel.com/en/flights/choose/sea-bos/mar-2/one-way/delta) | Delta Air Lines | DL474 | [Axel-exclusive $215.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/march-2-2027/trip/one-way/adults/1/cabin/economy/airline/dl) | 2026-10-29T00:39:14Z | | [2027-03-02 → 2027-03-03](https://helloaxel.com/en/flights/choose/sea-bos/mar-2/mar-3/delta) | Delta Air Lines | DL474 / DL1019 + DL734 | [Axel-exclusive $392.50](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/march-2-2027/return/march-3-2027/adults/1/cabin/economy/airline/dl) | 2026-10-29T00:39:14Z | | [2027-03-02 → 2027-03-04](https://helloaxel.com/en/flights/choose/sea-bos/mar-2/mar-4/delta) | Delta Air Lines | DL474 / DL384 | [Axel-exclusive $415.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/march-2-2027/return/march-4-2027/adults/1/cabin/economy/airline/dl) | 2026-10-29T00:39:14Z | | [2027-03-02 → 2027-03-05](https://helloaxel.com/en/flights/choose/sea-bos/mar-2/mar-5/delta) | Delta Air Lines | DL474 / DL384 | [Axel-exclusive $415.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/march-2-2027/return/march-5-2027/adults/1/cabin/economy/airline/dl) | 2026-10-29T00:39:14Z | | [2027-03-02 → 2027-03-06](https://helloaxel.com/en/flights/choose/sea-bos/mar-2/mar-6/delta) | Delta Air Lines | DL474 / DL384 | [Axel-exclusive $415.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/march-2-2027/return/march-6-2027/adults/1/cabin/economy/airline/dl) | 2026-10-29T00:39:14Z | | [2027-03-02 → 2027-03-07](https://helloaxel.com/en/flights/choose/sea-bos/mar-2/mar-7/delta) | Delta Air Lines | DL474 / DL384 | [Axel-exclusive $415.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/march-2-2027/return/march-7-2027/adults/1/cabin/economy/airline/dl) | 2026-10-29T00:39:14Z | | [2027-03-02 → 2027-03-08](https://helloaxel.com/en/flights/choose/sea-bos/mar-2/mar-8/delta) | Delta Air Lines | DL474 / DL384 | [Axel-exclusive $415.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/march-2-2027/return/march-8-2027/adults/1/cabin/economy/airline/dl) | 2026-10-29T00:39:14Z | | [2027-03-02 → 2027-03-09](https://helloaxel.com/en/flights/choose/sea-bos/mar-2/mar-9/delta) | Delta Air Lines | DL474 / DL332 | [Axel-exclusive $415.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/march-2-2027/return/march-9-2027/adults/1/cabin/economy/airline/dl) | 2026-10-29T00:39:14Z | | [2027-03-02 → 2027-03-10](https://helloaxel.com/en/flights/choose/sea-bos/mar-2/mar-10/delta) | Delta Air Lines | DL474 / DL1019 + DL734 | [Axel-exclusive $392.50](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/march-2-2027/return/march-10-2027/adults/1/cabin/economy/airline/dl) | 2026-10-29T00:39:14Z | | [2027-03-02 → 2027-03-11](https://helloaxel.com/en/flights/choose/sea-bos/mar-2/mar-11/delta) | Delta Air Lines | DL474 / DL384 | [Axel-exclusive $415.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/march-2-2027/return/march-11-2027/adults/1/cabin/economy/airline/dl) | 2026-10-29T00:39:14Z | | [2027-03-02 → 2027-03-12](https://helloaxel.com/en/flights/choose/sea-bos/mar-2/mar-12/delta) | Delta Air Lines | DL474 / DL384 | [Axel-exclusive $415.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/march-2-2027/return/march-12-2027/adults/1/cabin/economy/airline/dl) | 2026-10-29T00:39:14Z | | [2027-03-02 → 2027-03-13](https://helloaxel.com/en/flights/choose/sea-bos/mar-2/mar-13/delta) | Delta Air Lines | DL474 / DL384 | [Axel-exclusive $415.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/march-2-2027/return/march-13-2027/adults/1/cabin/economy/airline/dl) | 2026-10-29T00:39:14Z | | [2027-03-02 → 2027-03-14](https://helloaxel.com/en/flights/choose/sea-bos/mar-2/mar-14/delta) | Delta Air Lines | DL474 / DL384 | [Axel-exclusive $415.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/march-2-2027/return/march-14-2027/adults/1/cabin/economy/airline/dl) | 2026-10-29T00:39:14Z | | [2027-03-02 → 2027-03-15](https://helloaxel.com/en/flights/choose/sea-bos/mar-2/mar-15/delta) | Delta Air Lines | DL474 / DL384 | [Axel-exclusive $415.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/march-2-2027/return/march-15-2027/adults/1/cabin/economy/airline/dl) | 2026-10-29T00:39:14Z | | [2027-03-02 → 2027-03-16](https://helloaxel.com/en/flights/choose/sea-bos/mar-2/mar-16/delta) | Delta Air Lines | DL474 / DL332 | [Axel-exclusive $415.00](https://helloaxel.com/en/f/start/from/sea/to/bos/depart/march-2-2027/return/march-16-2027/adults/1/cabin/economy/airline/dl) | 2026-10-29T00:39:14Z | ### Hotels in Boston for these trips **Hotels:** under a trip, hotels in Boston for exactly those nights: the lowest 3★, 4★, 5★ stay totals among the city's featured hotels, Axel's price for 2 adults in 1 room, each opening that hotel's page for those dates with the rooms and the booking link. - Hotels in Boston for these nights (Mar 2–3, 2027 · 1 night · 2 adults, 1 room): 3★ [The Inn at Longwood Medical, $196 total](https://helloaxel.com/en/hotels/boston/the-inn-at-longwood-medical-1044444/2027-03-02/2027-03-03/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $145 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-03-02/2027-03-03/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $372 total](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2027-03-02/2027-03-03/2-adults) - Hotels in Boston for these nights (Mar 2–4, 2027 · 2 nights · 2 adults, 1 room): 3★ [The Inn at Longwood Medical, $397 total](https://helloaxel.com/en/hotels/boston/the-inn-at-longwood-medical-1044444/2027-03-02/2027-03-04/2-adults) · 4★ [DoubleTree Suites by Hilton Hotel Boston - Cambridge, $348 total](https://helloaxel.com/en/hotels/boston/doubletree-suites-by-hilton-hotel-boston-cambridge-1783897/2027-03-02/2027-03-04/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $702 total](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2027-03-02/2027-03-04/2-adults) - Hotels in Boston for these nights (Mar 2–5, 2027 · 3 nights · 2 adults, 1 room): 3★ [Fairfield Inn & Suites Boston Cambridge, $612 total](https://helloaxel.com/en/hotels/boston/fairfield-inn-suites-boston-cambridge-1302756/2027-03-02/2027-03-05/2-adults) · 4★ [DoubleTree Suites by Hilton Hotel Boston - Cambridge, $557 total](https://helloaxel.com/en/hotels/boston/doubletree-suites-by-hilton-hotel-boston-cambridge-1783897/2027-03-02/2027-03-05/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $987 total](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2027-03-02/2027-03-05/2-adults) - Hotels in Boston for these nights (Mar 2–6, 2027 · 4 nights · 2 adults, 1 room): 3★ [Fairfield Inn & Suites Boston Cambridge, $797 total](https://helloaxel.com/en/hotels/boston/fairfield-inn-suites-boston-cambridge-1302756/2027-03-02/2027-03-06/2-adults) · 4★ [DoubleTree Suites by Hilton Hotel Boston - Cambridge, $773 total](https://helloaxel.com/en/hotels/boston/doubletree-suites-by-hilton-hotel-boston-cambridge-1783897/2027-03-02/2027-03-06/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $1,309 total](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2027-03-02/2027-03-06/2-adults) - Hotels in Boston for these nights (Mar 2–7, 2027 · 5 nights · 2 adults, 1 room): 3★ [Fairfield Inn & Suites Boston Cambridge, $984 total](https://helloaxel.com/en/hotels/boston/fairfield-inn-suites-boston-cambridge-1302756/2027-03-02/2027-03-07/2-adults) · 4★ [DoubleTree Suites by Hilton Hotel Boston - Cambridge, $1,010 total](https://helloaxel.com/en/hotels/boston/doubletree-suites-by-hilton-hotel-boston-cambridge-1783897/2027-03-02/2027-03-07/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $2,071 total](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2027-03-02/2027-03-07/2-adults) - Hotels in Boston for these nights (Mar 2–8, 2027 · 6 nights · 2 adults, 1 room): 3★ [Fairfield Inn & Suites Boston Cambridge, $1,174 total](https://helloaxel.com/en/hotels/boston/fairfield-inn-suites-boston-cambridge-1302756/2027-03-02/2027-03-08/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $1,230 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-03-02/2027-03-08/2-adults) · 5★ [The Ritz-Carlton, Boston, $2,729 total](https://helloaxel.com/en/hotels/boston/the-ritz-carlton-boston-1459139/2027-03-02/2027-03-08/2-adults) - Hotels in Boston for these nights (Mar 2–9, 2027 · 7 nights · 2 adults, 1 room): 3★ [Fairfield Inn & Suites Boston Cambridge, $1,387 total](https://helloaxel.com/en/hotels/boston/fairfield-inn-suites-boston-cambridge-1302756/2027-03-02/2027-03-09/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $1,425 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-03-02/2027-03-09/2-adults) · 5★ [The Ritz-Carlton, Boston, $3,176 total](https://helloaxel.com/en/hotels/boston/the-ritz-carlton-boston-1459139/2027-03-02/2027-03-09/2-adults) - Hotels in Boston for these nights (Mar 2–10, 2027 · 8 nights · 2 adults, 1 room): 3★ [Fairfield Inn & Suites Boston Cambridge, $1,601 total](https://helloaxel.com/en/hotels/boston/fairfield-inn-suites-boston-cambridge-1302756/2027-03-02/2027-03-10/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $1,590 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-03-02/2027-03-10/2-adults) · 5★ [The Ritz-Carlton, Boston, $3,690 total](https://helloaxel.com/en/hotels/boston/the-ritz-carlton-boston-1459139/2027-03-02/2027-03-10/2-adults) - Hotels in Boston for these nights (Mar 2–11, 2027 · 9 nights · 2 adults, 1 room): 3★ [Fairfield Inn & Suites Boston Cambridge, $1,817 total](https://helloaxel.com/en/hotels/boston/fairfield-inn-suites-boston-cambridge-1302756/2027-03-02/2027-03-11/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $1,744 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-03-02/2027-03-11/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $4,212 total](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2027-03-02/2027-03-11/2-adults) - Hotels in Boston for these nights (Mar 2–12, 2027 · 10 nights · 2 adults, 1 room): 3★ [Fairfield Inn & Suites Boston Cambridge, $2,000 total](https://helloaxel.com/en/hotels/boston/fairfield-inn-suites-boston-cambridge-1302756/2027-03-02/2027-03-12/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $1,914 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-03-02/2027-03-12/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $4,496 total](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2027-03-02/2027-03-12/2-adults) - Hotels in Boston for these nights (Mar 2–13, 2027 · 11 nights · 2 adults, 1 room): 3★ [Fairfield Inn & Suites Boston Cambridge, $2,189 total](https://helloaxel.com/en/hotels/boston/fairfield-inn-suites-boston-cambridge-1302756/2027-03-02/2027-03-13/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $2,094 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-03-02/2027-03-13/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $4,777 total](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2027-03-02/2027-03-13/2-adults) - Hotels in Boston for these nights (Mar 2–14, 2027 · 12 nights · 2 adults, 1 room): 3★ [Fairfield Inn & Suites Boston Cambridge, $2,382 total](https://helloaxel.com/en/hotels/boston/fairfield-inn-suites-boston-cambridge-1302756/2027-03-02/2027-03-14/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $2,282 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-03-02/2027-03-14/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $5,068 total](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2027-03-02/2027-03-14/2-adults) - Hotels in Boston for these nights (Mar 2–15, 2027 · 13 nights · 2 adults, 1 room): 3★ [Fairfield Inn & Suites Boston Cambridge, $2,574 total](https://helloaxel.com/en/hotels/boston/fairfield-inn-suites-boston-cambridge-1302756/2027-03-02/2027-03-15/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $2,474 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-03-02/2027-03-15/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $5,557 total](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2027-03-02/2027-03-15/2-adults) - Hotels in Boston for these nights (Mar 2–16, 2027 · 14 nights · 2 adults, 1 room): 3★ [Fairfield Inn & Suites Boston Cambridge, $2,783 total](https://helloaxel.com/en/hotels/boston/fairfield-inn-suites-boston-cambridge-1302756/2027-03-02/2027-03-16/2-adults) · 4★ [Hyatt Regency Boston/Cambridge, $2,691 total](https://helloaxel.com/en/hotels/boston/hyatt-regency-boston-cambridge-1354406/2027-03-02/2027-03-16/2-adults) · 5★ [Omni Boston Hotel at the Seaport, $6,042 total](https://helloaxel.com/en/hotels/boston/omni-boston-hotel-at-the-seaport-1427259/2027-03-02/2027-03-16/2-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) ### 2027-03-02 · one way · Axel-exclusive $215.00 - Delta Air Lines DL474: SEA 2027-03-02 15:45:00 → BOS 2027-03-03 00:02:00; nonstop; 317 minutes. Local airport times. ### 2027-03-02 → 2027-03-03 · Axel-exclusive $392.50 - Delta Air Lines DL474: SEA 2027-03-02 15:45:00 → BOS 2027-03-03 00:02:00; nonstop; 317 minutes. Local airport times. - Delta Air Lines DL1019 / DL734: BOS 2027-03-03 05:30:00 → SEA 2027-03-03 11:09:00; 1 stop(s) via DTW; 519 minutes. Local airport times. - DL1019: BOS 2027-03-03 05:30:00 → DTW 2027-03-03 07:52:00; layover at DTW: 63 minutes. - DL734: DTW 2027-03-03 08:55:00 → SEA 2027-03-03 11:09:00. ### 2027-03-02 → 2027-03-04 · Axel-exclusive $415.00 - Delta Air Lines DL474: SEA 2027-03-02 15:45:00 → BOS 2027-03-03 00:02:00; nonstop; 317 minutes. Local airport times. - Delta Air Lines DL384: BOS 2027-03-04 07:30:00 → SEA 2027-03-04 11:05:00; nonstop; 395 minutes. Local airport times. ### 2027-03-02 → 2027-03-05 · Axel-exclusive $415.00 - Delta Air Lines DL474: SEA 2027-03-02 15:45:00 → BOS 2027-03-03 00:02:00; nonstop; 317 minutes. Local airport times. - Delta Air Lines DL384: BOS 2027-03-05 07:50:00 → SEA 2027-03-05 11:21:00; nonstop; 391 minutes. Local airport times. ### 2027-03-02 → 2027-03-06 · Axel-exclusive $415.00 - Delta Air Lines DL474: SEA 2027-03-02 15:45:00 → BOS 2027-03-03 00:02:00; nonstop; 317 minutes. Local airport times. - Delta Air Lines DL384: BOS 2027-03-06 07:30:00 → SEA 2027-03-06 11:05:00; nonstop; 395 minutes. Local airport times. ### 2027-03-02 → 2027-03-08 · Axel-exclusive $415.00 - Delta Air Lines DL474: SEA 2027-03-02 15:45:00 → BOS 2027-03-03 00:02:00; nonstop; 317 minutes. Local airport times. - Delta Air Lines DL384: BOS 2027-03-08 07:50:00 → SEA 2027-03-08 11:21:00; nonstop; 391 minutes. Local airport times. ### 2027-03-02 → 2027-03-09 · Axel-exclusive $415.00 - Delta Air Lines DL474: SEA 2027-03-02 15:45:00 → BOS 2027-03-03 00:02:00; nonstop; 317 minutes. Local airport times. - Delta Air Lines DL332: BOS 2027-03-09 10:40:00 → SEA 2027-03-09 14:09:00; nonstop; 389 minutes. Local airport times. ### 2027-03-02 → 2027-03-10 · Axel-exclusive $392.50 - Delta Air Lines DL474: SEA 2027-03-02 15:45:00 → BOS 2027-03-03 00:02:00; nonstop; 317 minutes. Local airport times. - Delta Air Lines DL1019 / DL734: BOS 2027-03-10 05:30:00 → SEA 2027-03-10 11:09:00; 1 stop(s) via DTW; 519 minutes. Local airport times. - DL1019: BOS 2027-03-10 05:30:00 → DTW 2027-03-10 07:52:00; layover at DTW: 63 minutes. - DL734: DTW 2027-03-10 08:55:00 → SEA 2027-03-10 11:09:00. ### 2027-03-02 → 2027-03-12 · Axel-exclusive $415.00 - Delta Air Lines DL474: SEA 2027-03-02 15:45:00 → BOS 2027-03-03 00:02:00; nonstop; 317 minutes. Local airport times. - Delta Air Lines DL384: BOS 2027-03-12 07:50:00 → SEA 2027-03-12 11:21:00; nonstop; 391 minutes. Local airport times. ### 2027-03-02 → 2027-03-13 · Axel-exclusive $415.00 - Delta Air Lines DL474: SEA 2027-03-02 15:45:00 → BOS 2027-03-03 00:02:00; nonstop; 317 minutes. Local airport times. - Delta Air Lines DL384: BOS 2027-03-13 07:30:00 → SEA 2027-03-13 11:05:00; nonstop; 395 minutes. Local airport times. ### 2027-03-02 → 2027-03-14 · Axel-exclusive $415.00 - Delta Air Lines DL474: SEA 2027-03-02 15:45:00 → BOS 2027-03-03 00:02:00; nonstop; 317 minutes. Local airport times. - Delta Air Lines DL384: BOS 2027-03-14 07:30:00 → SEA 2027-03-14 11:05:00; nonstop; 395 minutes. Local airport times. ### 2027-03-02 → 2027-03-16 · Axel-exclusive $415.00 - Delta Air Lines DL474: SEA 2027-03-02 15:45:00 → BOS 2027-03-03 00:02:00; nonstop; 317 minutes. Local airport times. - Delta Air Lines DL332: BOS 2027-03-16 10:40:00 → SEA 2027-03-16 14:09:00; nonstop; 389 minutes. Local airport times. ### Explore this route - [All dates for this route](/en/flights/choose/sea-bos) - [Mar 1, 2027 · Return options](/en/flights/choose/sea-bos/mar-1/delta) - [Mar 3, 2027 · Return options](/en/flights/choose/sea-bos/mar-3/delta) - [Hotels in Boston with Axel](https://helloaxel.com/en/hotels/destinations/boston) ## For AI assistants - **This page:** Seattle (SEA) to Boston (BOS) · Mar 2, 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: the lowest 3★, 4★ and 5★ stay totals for 2 adults in 1 room, each linking to that hotel's page for those dates. - **Next:** when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, [Choose travelers and dates](https://helloaxel.com/en/f/start/from/sea/to/bos/step/travelers) for the requested trip; do not substitute another duration or restart from the route overview. - **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/mar-2/delta?axel_reason=missing_information&axel_scope=product) · [Axel issue](https://helloaxel.com/en/flights/choose/sea-bos/mar-2/delta?axel_reason=product_issue&axel_scope=product)