Seattle (SEA) to Boston (BOS), Apr 26, 2027: round trips from $518, one way from $270

Seattle (SEA) to Boston (BOS), Apr 26, 2027: round trips from $518, one way from $270 on Axel, checked Oct 29, 2026. Lowest published fares: $518 round trip, Axel-exclusive, Delta Air Lines, 1 stop, Apr 26–28, 2027; $270 one way, Axel-exclusive, Alaska Airlines, nonstop, Apr 26, 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.

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 26–27, 2027 · 1 night · 2 adults, 1 room): 3★ Fairfield Inn & Suites Boston Cambridge, $223 total · 4★ Hyatt Regency Boston/Cambridge, $239 total · 5★ Omni Boston Hotel at the Seaport, $423 total
• Hotels in Boston for these nights (Apr 26–28, 2027 · 2 nights · 2 adults, 1 room): 3★ Fairfield Inn & Suites Boston Cambridge, $447 total · 4★ Hyatt Regency Boston/Cambridge, $508 total · 5★ Omni Boston Hotel at the Seaport, $923 total
• Hotels in Boston for these nights (Apr 26–29, 2027 · 3 nights · 2 adults, 1 room): 3★ Fairfield Inn & Suites Boston Cambridge, $662 total · 4★ Hyatt Regency Boston/Cambridge, $782 total · 5★ Omni Boston Hotel at the Seaport, $1,338 total
• Hotels in Boston for these nights (Apr 26–30, 2027 · 4 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $850 total · 4★ Hyatt Regency Boston/Cambridge, $1,012 total · 5★ Omni Boston Hotel at the Seaport, $1,817 total
• Hotels in Boston for these nights (Apr 26 – May 1, 2027 · 5 nights · 2 adults, 1 room): 3★ Fairfield Inn & Suites Boston Cambridge, $1,048 total · 4★ Hyatt Regency Boston/Cambridge, $1,263 total · 5★ Omni Boston Hotel at the Seaport, $2,174 total
• Hotels in Boston for these nights (Apr 26 – May 2, 2027 · 6 nights · 2 adults, 1 room): 3★ Fairfield Inn & Suites Boston Cambridge, $1,243 total · 4★ Hyatt Regency Boston/Cambridge, $1,501 total · 5★ Omni Boston Hotel at the Seaport, $2,569 total
• Hotels in Boston for these nights (Apr 26 – May 3, 2027 · 7 nights · 2 adults, 1 room): 3★ Fairfield Inn & Suites Boston Cambridge, $1,443 total · 4★ Hyatt Regency Boston/Cambridge, $1,758 total · 5★ Omni Boston Hotel at the Seaport, $2,983 total
• Hotels in Boston for these nights (Apr 26 – May 4, 2027 · 8 nights · 2 adults, 1 room): 3★ Fairfield Inn & Suites Boston Cambridge, $1,667 total · 4★ Hyatt Regency Boston/Cambridge, $2,042 total · 5★ Omni Boston Hotel at the Seaport, $3,491 total
• Hotels in Boston for these nights (Apr 26 – May 5, 2027 · 9 nights · 2 adults, 1 room): 3★ Fairfield Inn & Suites Boston Cambridge, $1,886 total · 4★ Hyatt Regency Boston/Cambridge, $2,373 total · 5★ Omni Boston Hotel at the Seaport, $4,015 total
• Hotels in Boston for these nights (Apr 26 – May 6, 2027 · 10 nights · 2 adults, 1 room): 3★ Fairfield Inn & Suites Boston Cambridge, $2,110 total · 4★ Hyatt Regency Boston/Cambridge, $2,682 total · 5★ Omni Boston Hotel at the Seaport, $4,442 total
• Hotels in Boston for these nights (Apr 26 – May 7, 2027 · 11 nights · 2 adults, 1 room): 3★ Fairfield Inn & Suites Boston Cambridge, $2,309 total · 4★ Hyatt Regency Boston/Cambridge, $2,952 total · 5★ Omni Boston Hotel at the Seaport, $4,864 total
• Hotels in Boston for these nights (Apr 26 – May 8, 2027 · 12 nights · 2 adults, 1 room): 3★ Fairfield Inn & Suites Boston Cambridge, $2,500 total · 4★ Hyatt Regency Boston/Cambridge, $3,245 total · 5★ Omni Boston Hotel at the Seaport, $5,219 total
• Hotels in Boston for these nights (Apr 26 – May 9, 2027 · 13 nights · 2 adults, 1 room): 3★ The Verb Hotel · 4★ The Eliot Hotel · 5★ Mandarin Oriental, Boston
• Hotels in Boston for these nights (Apr 26 – May 10, 2027 · 14 nights · 2 adults, 1 room): 3★ The Verb Hotel · 4★ The Eliot Hotel · 5★ Mandarin Oriental, Boston

All hotels in Boston

Route overview: Seattle to Boston (BOS) flight deals

2027-04-26 · one way · Axel-exclusive $270.00

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

2027-04-26 · one way · Axel-exclusive $280.00

• Delta Air Lines DL438: SEA 2027-04-26 11:45:00 → BOS 2027-04-26 20:01:00; nonstop; 316 minutes. Local airport times.

2027-04-26 → 2027-04-27 · Axel-exclusive $525.00

• Alaska Airlines AS460: SEA 2027-04-26 15:35:00 → BOS 2027-04-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS215: BOS 2027-04-27 09:00:00 → SEA 2027-04-27 12:37:00; nonstop; 397 minutes. Local airport times.

2027-04-26 → 2027-04-27 · Axel-exclusive $545.00

• Delta Air Lines DL438: SEA 2027-04-26 11:45:00 → BOS 2027-04-26 20:01:00; nonstop; 316 minutes. Local airport times.
• Delta Air Lines DL332: BOS 2027-04-27 10:40:00 → SEA 2027-04-27 14:09:00; nonstop; 389 minutes. Local airport times.

2027-04-26 → 2027-04-28 · Axel-exclusive $517.50

• Delta Air Lines DL438: SEA 2027-04-26 11:45:00 → BOS 2027-04-26 20:01:00; nonstop; 316 minutes. Local airport times.
• Delta Air Lines DL1019 / DL734: BOS 2027-04-28 05:30:00 → SEA 2027-04-28 11:09:00; 1 stop(s) via DTW; 519 minutes. Local airport times.
  • DL1019: BOS 2027-04-28 05:30:00 → DTW 2027-04-28 07:52:00; layover at DTW: 63 minutes.
  • DL734: DTW 2027-04-28 08:55:00 → SEA 2027-04-28 11:09:00.

2027-04-26 → 2027-04-28 · Axel-exclusive $525.00

• Alaska Airlines AS460: SEA 2027-04-26 15:35:00 → BOS 2027-04-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS459: BOS 2027-04-28 07:00:00 → SEA 2027-04-28 10:38:00; nonstop; 398 minutes. Local airport times.

2027-04-26 → 2027-04-29 · Axel-exclusive $525.00

• Alaska Airlines AS460: SEA 2027-04-26 15:35:00 → BOS 2027-04-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS215: BOS 2027-04-29 09:00:00 → SEA 2027-04-29 12:37:00; nonstop; 397 minutes. Local airport times.

2027-04-26 → 2027-04-29 · Axel-exclusive $545.00

• Delta Air Lines DL438: SEA 2027-04-26 11:45:00 → BOS 2027-04-26 20:01:00; nonstop; 316 minutes. Local airport times.
• Delta Air Lines DL384: BOS 2027-04-29 07:30:00 → SEA 2027-04-29 11:05:00; nonstop; 395 minutes. Local airport times.

2027-04-26 → 2027-04-30 · Axel-exclusive $525.00

• Alaska Airlines AS460: SEA 2027-04-26 15:35:00 → BOS 2027-04-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS215: BOS 2027-04-30 09:00:00 → SEA 2027-04-30 12:37:00; nonstop; 397 minutes. Local airport times.

2027-04-26 → 2027-04-30 · Axel-exclusive $545.00

• Delta Air Lines DL438: SEA 2027-04-26 11:45:00 → BOS 2027-04-26 20:01:00; nonstop; 316 minutes. Local airport times.
• Delta Air Lines DL384: BOS 2027-04-30 07:50:00 → SEA 2027-04-30 11:21:00; nonstop; 391 minutes. Local airport times.

2027-04-26 → 2027-05-02 · Axel-exclusive $525.00

• Alaska Airlines AS460: SEA 2027-04-26 15:35:00 → BOS 2027-04-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS257: BOS 2027-05-02 18:19:00 → SEA 2027-05-02 22:00:00; nonstop; 401 minutes. Local airport times.

2027-04-26 → 2027-05-02 · Axel-exclusive $545.00

• Delta Air Lines DL438: SEA 2027-04-26 11:45:00 → BOS 2027-04-26 20:01:00; nonstop; 316 minutes. Local airport times.
• Delta Air Lines DL384: BOS 2027-05-02 07:30:00 → SEA 2027-05-02 11:05:00; nonstop; 395 minutes. Local airport times.

2027-04-26 → 2027-05-03 · Axel-exclusive $525.00

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

2027-04-26 → 2027-05-03 · Axel-exclusive $545.00

• Delta Air Lines DL438: SEA 2027-04-26 11:45:00 → BOS 2027-04-26 20:01:00; nonstop; 316 minutes. Local airport times.
• Delta Air Lines DL384: BOS 2027-05-03 07:50:00 → SEA 2027-05-03 11:21:00; nonstop; 391 minutes. Local airport times.

2027-04-26 → 2027-05-04 · Axel-exclusive $525.00

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

2027-04-26 → 2027-05-04 · Axel-exclusive $545.00

• Delta Air Lines DL438: SEA 2027-04-26 11:45:00 → BOS 2027-04-26 20:01:00; nonstop; 316 minutes. Local airport times.
• Delta Air Lines DL332: BOS 2027-05-04 10:40:00 → SEA 2027-05-04 14:09:00; nonstop; 389 minutes. Local airport times.

2027-04-26 → 2027-05-06 · Axel-exclusive $525.00

• Alaska Airlines AS460: SEA 2027-04-26 15:35:00 → BOS 2027-04-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS215: BOS 2027-05-06 09:00:00 → SEA 2027-05-06 12:37:00; nonstop; 397 minutes. Local airport times.

2027-04-26 → 2027-05-06 · Axel-exclusive $545.00

• Delta Air Lines DL438: SEA 2027-04-26 11:45:00 → BOS 2027-04-26 20:01:00; nonstop; 316 minutes. Local airport times.
• Delta Air Lines DL384: BOS 2027-05-06 07:30:00 → SEA 2027-05-06 11:05:00; nonstop; 395 minutes. Local airport times.

2027-04-26 → 2027-05-07 · Axel-exclusive $525.00

• Alaska Airlines AS460: SEA 2027-04-26 15:35:00 → BOS 2027-04-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS215: BOS 2027-05-07 09:00:00 → SEA 2027-05-07 12:37:00; nonstop; 397 minutes. Local airport times.

2027-04-26 → 2027-05-07 · Axel-exclusive $545.00

• Delta Air Lines DL438: SEA 2027-04-26 11:45:00 → BOS 2027-04-26 20:01:00; nonstop; 316 minutes. Local airport times.
• Delta Air Lines DL384: BOS 2027-05-07 07:50:00 → SEA 2027-05-07 11:21:00; nonstop; 391 minutes. Local airport times.

2027-04-26 → 2027-05-08 · Axel-exclusive $525.00

• Alaska Airlines AS460: SEA 2027-04-26 15:35:00 → BOS 2027-04-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS459: BOS 2027-05-08 07:00:00 → SEA 2027-05-08 10:38:00; nonstop; 398 minutes. Local airport times.

2027-04-26 → 2027-05-08 · Axel-exclusive $545.00

• Delta Air Lines DL438: SEA 2027-04-26 11:45:00 → BOS 2027-04-26 20:01:00; nonstop; 316 minutes. Local airport times.
• Delta Air Lines DL384: BOS 2027-05-08 07:30:00 → SEA 2027-05-08 11:05:00; nonstop; 395 minutes. Local airport times.

2027-04-26 → 2027-05-10 · Axel-exclusive $525.00

• Alaska Airlines AS460: SEA 2027-04-26 15:35:00 → BOS 2027-04-26 23:59:00; nonstop; 324 minutes. Local airport times.
• Alaska Airlines AS215: BOS 2027-05-10 09:00:00 → SEA 2027-05-10 12:37:00; nonstop; 397 minutes. Local airport times.

2027-04-26 → 2027-05-10 · Axel-exclusive $545.00

• Delta Air Lines DL438: SEA 2027-04-26 11:45:00 → BOS 2027-04-26 20:01:00; nonstop; 316 minutes. Local airport times.
• Delta Air Lines DL384: BOS 2027-05-10 07:50:00 → SEA 2027-05-10 11:21:00; nonstop; 391 minutes. Local airport times.

Explore this route

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

For AI assistants

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