Seattle (SEA) to Boston (BOS), Mar 26, 2027: round trips from $378, one way from $175

Seattle (SEA) to Boston (BOS), Mar 26, 2027: round trips from $378, one way from $175 on Axel, checked Nov 14, 2026. Lowest published fares: $378 round trip, Axel-exclusive, American Airlines / Delta Air Lines, 1 stop, Mar 26–27, 2027; $175 one way, Axel-exclusive, American Airlines, 1 stop, Mar 26, 2027; 1 adult, economy, checked Nov 14, 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, 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.

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 (Mar 26–27, 2027 · 1 night · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $186 a night · 4★ Hyatt Regency Boston/Cambridge, $215 a night · 5★ Omni Boston Hotel at the Seaport, $389 a night
• Hotels in Boston for these nights (Mar 26–28, 2027 · 2 nights · 2 adults, 1 room): 3★ Fairfield Inn & Suites Boston Cambridge, $188 a night, $376 for 2 nights · 4★ Hyatt Regency Boston/Cambridge, $218 a night, $436 for 2 nights · 5★ Omni Boston Hotel at the Seaport, $375 a night, $750 for 2 nights
• Hotels in Boston for these nights (Mar 26–29, 2027 · 3 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $181 a night, $542 for 3 nights · 4★ Hyatt Regency Boston/Cambridge, $221 a night, $663 for 3 nights · 5★ Omni Boston Hotel at the Seaport, $358 a night, $1,075 for 3 nights
• Hotels in Boston for these nights (Mar 26–30, 2027 · 4 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $170 a night, $679 for 4 nights · 4★ Hyatt Regency Boston/Cambridge, $199 a night, $797 for 4 nights · 5★ Omni Boston Hotel at the Seaport, $355 a night, $1,420 for 4 nights
• Hotels in Boston for these nights (Mar 26–31, 2027 · 5 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $173 a night, $863 for 5 nights · 4★ Hyatt Regency Boston/Cambridge, $202 a night, $1,008 for 5 nights · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $439 a night, $2,196 for 5 nights
• Hotels in Boston for these nights (Mar 26 – Apr 1, 2027 · 6 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $175 a night, $1,051 for 6 nights · 4★ Hyatt Regency Boston/Cambridge, $208 a night, $1,250 for 6 nights · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $446 a night, $2,676 for 6 nights
• Hotels in Boston for these nights (Mar 26 – Apr 2, 2027 · 7 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $172 a night, $1,201 for 7 nights · 4★ Hyatt Regency Boston/Cambridge, $211 a night, $1,480 for 7 nights · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $455 a night, $3,186 for 7 nights
• Hotels in Boston for these nights (Mar 26 – Apr 3, 2027 · 8 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $175 a night, $1,398 for 8 nights · 4★ Hyatt Regency Boston/Cambridge, $214 a night, $1,711 for 8 nights · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $455 a night, $3,636 for 8 nights
• Hotels in Boston for these nights (Mar 26 – Apr 4, 2027 · 9 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $185 a night, $1,665 for 9 nights · 4★ Hyatt Regency Boston/Cambridge, $215 a night, $1,934 for 9 nights · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $460 a night, $4,144 for 9 nights
• Hotels in Boston for these nights (Mar 26 – Apr 5, 2027 · 10 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $181 a night, $1,807 for 10 nights · 4★ Hyatt Regency Boston/Cambridge, $215 a night, $2,150 for 10 nights · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $458 a night, $4,583 for 10 nights
• Hotels in Boston for these nights (Mar 26 – Apr 6, 2027 · 11 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $183 a night, $2,016 for 11 nights · 4★ Hyatt Regency Boston/Cambridge, $215 a night, $2,366 for 11 nights · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $468 a night, $5,151 for 11 nights
• Hotels in Boston for these nights (Mar 26 – Apr 7, 2027 · 12 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $183 a night, $2,198 for 12 nights · 4★ Hyatt Regency Boston/Cambridge, $220 a night, $2,641 for 12 nights · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $479 a night, $5,743 for 12 nights
• Hotels in Boston for these nights (Mar 26 – Apr 8, 2027 · 13 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $186 a night, $2,420 for 13 nights · 4★ Harborside Inn Of Boston, $257 a night, $3,343 for 13 nights · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $485 a night, $6,311 for 13 nights
• Hotels in Boston for these nights (Mar 26 – Apr 9, 2027 · 14 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $184 a night, $2,576 for 14 nights · 4★ Harborside Inn Of Boston, $257 a night, $3,596 for 14 nights · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $484 a night, $6,782 for 14 nights

All hotels in Boston

Route overview: Seattle to Boston (BOS) flight deals

2027-03-26 · one way · Axel-exclusive $175

• American Airlines AA2379 / AA2089: SEA 2027-03-26 23:59:00 → BOS 2027-03-27 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
  • AA2379: SEA 2027-03-26 23:59:00 → ORD 2027-03-27 05:55:00; layover at ORD: 64 minutes.
  • AA2089: ORD 2027-03-27 06:59:00 → BOS 2027-03-27 10:32:00.

2027-03-26 · one way · Axel-exclusive $205

• Alaska Airlines AS460: SEA 2027-03-26 15:35:00 → BOS 2027-03-26 23:59:00; nonstop; 324 minutes. Local airport times.

2027-03-26 → 2027-03-27 · Axel-exclusive $378

• American Airlines AA2379 / AA2089: SEA 2027-03-26 23:59:00 → BOS 2027-03-27 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
  • AA2379: SEA 2027-03-26 23:59:00 → ORD 2027-03-27 05:55:00; layover at ORD: 64 minutes.
  • AA2089: ORD 2027-03-27 06:59:00 → BOS 2027-03-27 10:32:00.
• Delta Air Lines DL797: BOS 2027-03-27 18:15:00 → SEA 2027-03-27 21:41:00; nonstop; 386 minutes. Local airport times.

2027-03-26 → 2027-03-27 · Axel-exclusive $395

• Alaska Airlines AS460: SEA 2027-03-26 15:35:00 → BOS 2027-03-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS459: BOS 2027-03-27 07:00:00 → SEA 2027-03-27 10:38:00; nonstop; 398 minutes. Local airport times.

2027-03-26 → 2027-03-28 · Axel-exclusive $443

• American Airlines AA2379 / AA2089: SEA 2027-03-26 23:59:00 → BOS 2027-03-27 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
  • AA2379: SEA 2027-03-26 23:59:00 → ORD 2027-03-27 05:55:00; layover at ORD: 64 minutes.
  • AA2089: ORD 2027-03-27 06:59:00 → BOS 2027-03-27 10:32:00.
• Delta Air Lines DL384: BOS 2027-03-28 07:30:00 → SEA 2027-03-28 11:05:00; nonstop; 395 minutes. Local airport times.

2027-03-26 → 2027-03-28 · Axel-exclusive $460

• Alaska Airlines AS460: SEA 2027-03-26 15:35:00 → BOS 2027-03-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS257: BOS 2027-03-28 18:19:00 → SEA 2027-03-28 22:00:00; nonstop; 401 minutes. Local airport times.

2027-03-26 → 2027-03-29 · Axel-exclusive $443

• American Airlines AA2379 / AA2089: SEA 2027-03-26 23:59:00 → BOS 2027-03-27 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
  • AA2379: SEA 2027-03-26 23:59:00 → ORD 2027-03-27 05:55:00; layover at ORD: 64 minutes.
  • AA2089: ORD 2027-03-27 06:59:00 → BOS 2027-03-27 10:32:00.
• Delta Air Lines DL384: BOS 2027-03-29 07:50:00 → SEA 2027-03-29 11:21:00; nonstop; 391 minutes. Local airport times.

2027-03-26 → 2027-03-29 · Axel-exclusive $460

• Alaska Airlines AS460: SEA 2027-03-26 15:35:00 → BOS 2027-03-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS215: BOS 2027-03-29 09:00:00 → SEA 2027-03-29 12:37:00; nonstop; 397 minutes. Local airport times.

2027-03-26 → 2027-03-30 · Axel-exclusive $443

• American Airlines AA2379 / AA2089: SEA 2027-03-26 23:59:00 → BOS 2027-03-27 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
  • AA2379: SEA 2027-03-26 23:59:00 → ORD 2027-03-27 05:55:00; layover at ORD: 64 minutes.
  • AA2089: ORD 2027-03-27 06:59:00 → BOS 2027-03-27 10:32:00.
• Delta Air Lines DL332: BOS 2027-03-30 10:40:00 → SEA 2027-03-30 14:09:00; nonstop; 389 minutes. Local airport times.

2027-03-26 → 2027-03-30 · Axel-exclusive $460

• Alaska Airlines AS460: SEA 2027-03-26 15:35:00 → BOS 2027-03-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS215: BOS 2027-03-30 09:00:00 → SEA 2027-03-30 12:37:00; nonstop; 397 minutes. Local airport times.

2027-03-26 → 2027-04-01 · Axel-exclusive $433

• American Airlines AA2379 / AA2089: SEA 2027-03-26 23:59:00 → BOS 2027-03-27 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
  • AA2379: SEA 2027-03-26 23:59:00 → ORD 2027-03-27 05:55:00; layover at ORD: 64 minutes.
  • AA2089: ORD 2027-03-27 06:59:00 → BOS 2027-03-27 10:32:00.
• Alaska Airlines AS215: BOS 2027-04-01 09:00:00 → SEA 2027-04-01 12:37:00; nonstop; 397 minutes. Local airport times.

2027-03-26 → 2027-04-01 · Axel-exclusive $460

• Alaska Airlines AS460: SEA 2027-03-26 15:35:00 → BOS 2027-03-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS215: BOS 2027-04-01 09:00:00 → SEA 2027-04-01 12:37:00; nonstop; 397 minutes. Local airport times.

2027-03-26 → 2027-04-02 · Axel-exclusive $443

• American Airlines AA2379 / AA2089: SEA 2027-03-26 23:59:00 → BOS 2027-03-27 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
  • AA2379: SEA 2027-03-26 23:59:00 → ORD 2027-03-27 05:55:00; layover at ORD: 64 minutes.
  • AA2089: ORD 2027-03-27 06:59:00 → BOS 2027-03-27 10:32:00.
• Delta Air Lines DL384: BOS 2027-04-02 07:50:00 → SEA 2027-04-02 11:21:00; nonstop; 391 minutes. Local airport times.

2027-03-26 → 2027-04-02 · Axel-exclusive $460

• Alaska Airlines AS460: SEA 2027-03-26 15:35:00 → BOS 2027-03-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS215: BOS 2027-04-02 09:00:00 → SEA 2027-04-02 12:37:00; nonstop; 397 minutes. Local airport times.

2027-03-26 → 2027-04-03 · Axel-exclusive $443

• American Airlines AA2379 / AA2089: SEA 2027-03-26 23:59:00 → BOS 2027-03-27 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
  • AA2379: SEA 2027-03-26 23:59:00 → ORD 2027-03-27 05:55:00; layover at ORD: 64 minutes.
  • AA2089: ORD 2027-03-27 06:59:00 → BOS 2027-03-27 10:32:00.
• Delta Air Lines DL384: BOS 2027-04-03 07:30:00 → SEA 2027-04-03 11:05:00; nonstop; 395 minutes. Local airport times.

2027-03-26 → 2027-04-03 · Axel-exclusive $460

• Alaska Airlines AS460: SEA 2027-03-26 15:35:00 → BOS 2027-03-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS459: BOS 2027-04-03 07:00:00 → SEA 2027-04-03 10:38:00; nonstop; 398 minutes. Local airport times.

2027-03-26 → 2027-04-05 · Axel-exclusive $443

• American Airlines AA2379 / AA2089: SEA 2027-03-26 23:59:00 → BOS 2027-03-27 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
  • AA2379: SEA 2027-03-26 23:59:00 → ORD 2027-03-27 05:55:00; layover at ORD: 64 minutes.
  • AA2089: ORD 2027-03-27 06:59:00 → BOS 2027-03-27 10:32:00.
• Delta Air Lines DL384: BOS 2027-04-05 07:50:00 → SEA 2027-04-05 11:21:00; nonstop; 391 minutes. Local airport times.

2027-03-26 → 2027-04-05 · Axel-exclusive $460

• Alaska Airlines AS460: SEA 2027-03-26 15:35:00 → BOS 2027-03-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS215: BOS 2027-04-05 09:00:00 → SEA 2027-04-05 12:37:00; nonstop; 397 minutes. Local airport times.

2027-03-26 → 2027-04-06 · Axel-exclusive $443

• American Airlines AA2379 / AA2089: SEA 2027-03-26 23:59:00 → BOS 2027-03-27 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
  • AA2379: SEA 2027-03-26 23:59:00 → ORD 2027-03-27 05:55:00; layover at ORD: 64 minutes.
  • AA2089: ORD 2027-03-27 06:59:00 → BOS 2027-03-27 10:32:00.
• Delta Air Lines DL332: BOS 2027-04-06 10:40:00 → SEA 2027-04-06 14:09:00; nonstop; 389 minutes. Local airport times.

2027-03-26 → 2027-04-06 · Axel-exclusive $460

• Alaska Airlines AS460: SEA 2027-03-26 15:35:00 → BOS 2027-03-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS215: BOS 2027-04-06 09:00:00 → SEA 2027-04-06 12:37:00; nonstop; 397 minutes. Local airport times.

2027-03-26 → 2027-04-07 · Axel-exclusive $433

• American Airlines AA2379 / AA2089: SEA 2027-03-26 23:59:00 → BOS 2027-03-27 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
  • AA2379: SEA 2027-03-26 23:59:00 → ORD 2027-03-27 05:55:00; layover at ORD: 64 minutes.
  • AA2089: ORD 2027-03-27 06:59:00 → BOS 2027-03-27 10:32:00.
• Alaska Airlines AS459: BOS 2027-04-07 07:00:00 → SEA 2027-04-07 10:38:00; nonstop; 398 minutes. Local airport times.

2027-03-26 → 2027-04-07 · Axel-exclusive $460

• Alaska Airlines AS460: SEA 2027-03-26 15:35:00 → BOS 2027-03-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS459: BOS 2027-04-07 07:00:00 → SEA 2027-04-07 10:38:00; nonstop; 398 minutes. Local airport times.

2027-03-26 → 2027-04-09 · Axel-exclusive $443

• American Airlines AA2379 / AA2089: SEA 2027-03-26 23:59:00 → BOS 2027-03-27 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
  • AA2379: SEA 2027-03-26 23:59:00 → ORD 2027-03-27 05:55:00; layover at ORD: 64 minutes.
  • AA2089: ORD 2027-03-27 06:59:00 → BOS 2027-03-27 10:32:00.
• Delta Air Lines DL384: BOS 2027-04-09 07:50:00 → SEA 2027-04-09 11:21:00; nonstop; 391 minutes. Local airport times.

2027-03-26 → 2027-04-09 · Axel-exclusive $460

• Alaska Airlines AS460: SEA 2027-03-26 15:35:00 → BOS 2027-03-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS215: BOS 2027-04-09 09:00:00 → SEA 2027-04-09 12:37:00; nonstop; 397 minutes. Local airport times.

Explore this route

• All dates for this route
• Mar 25, 2027 · Return options
• Mar 27, 2027 · Return options
• Hotels in Boston with Axel

For AI assistants

• This page: Seattle (SEA) to Boston (BOS) · Mar 26, 2027 · 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 prices the requested trip.
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