Seattle (SEA) to Boston (BOS) · Dec 3, 2026 · return Dec 4, 2026

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy excluded.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Route overview: Seattle to Boston (BOS) flight deals

2026-12-03 → 2026-12-04 · Axel-exclusive $475.00

• Alaska Airlines AS460: SEA 2026-12-03 21:20:00 → BOS 2026-12-04 05:40:00; nonstop; 320 minutes. Local airport times.
• Alaska Airlines AS257: BOS 2026-12-04 18:22:00 → SEA 2026-12-04 22:00:00; nonstop; 398 minutes. Local airport times.

2026-12-03 → 2026-12-04 · Axel-exclusive $495.00

• Delta Air Lines DL474: SEA 2026-12-03 15:45:00 → BOS 2026-12-04 00:02:00; nonstop; 317 minutes. Local airport times.
• Delta Air Lines DL384: BOS 2026-12-04 07:50:00 → SEA 2026-12-04 11:21:00; nonstop; 391 minutes. Local airport times.

2026-12-03 → 2026-12-04 · Axel-exclusive $442.50

• American Airlines AA2203 / AA1874: SEA 2026-12-03 12:34:00 → BOS 2026-12-03 23:13:00; 1 stop(s) via PHL; 459 minutes. Local airport times.
  • AA2203: SEA 2026-12-03 12:34:00 → PHL 2026-12-03 20:35:00; layover at PHL: 75 minutes.
  • AA1874: PHL 2026-12-03 21:50:00 → BOS 2026-12-03 23:13:00.
• Alaska Airlines AS215: BOS 2026-12-04 09:00:00 → SEA 2026-12-04 12:37:00; nonstop; 397 minutes. Local airport times.

2026-12-03 → 2026-12-04 · Axel-exclusive $475.00

• Alaska Airlines AS460: SEA 2026-12-03 15:40:00 → BOS 2026-12-03 23:59:00; nonstop; 319 minutes. Local airport times.
• Alaska Airlines AS215: BOS 2026-12-04 09:00:00 → SEA 2026-12-04 12:37:00; nonstop; 397 minutes. Local airport times.

2026-12-03 → 2026-12-04 · Axel-exclusive $495.00

• Delta Air Lines DL459: SEA 2026-12-03 07:38:00 → BOS 2026-12-03 16:03:00; nonstop; 325 minutes. Local airport times.
• Delta Air Lines DL384: BOS 2026-12-04 07:50:00 → SEA 2026-12-04 11:21:00; nonstop; 391 minutes. Local airport times.

2026-12-03 → 2026-12-04 · Axel-exclusive $457.50

• Alaska Airlines AS314 / AA4801: SEA 2026-12-03 09:16:00 → BOS 2026-12-03 19:55:00; 1 stop(s) via STL; 459 minutes. Local airport times.
  • AS314: SEA 2026-12-03 09:16:00 → STL 2026-12-03 15:06:00; layover at STL: 69 minutes.
  • AA4801: STL 2026-12-03 16:15:00 → BOS 2026-12-03 19:55:00.
• Alaska Airlines AS215: BOS 2026-12-04 09:00:00 → SEA 2026-12-04 12:37:00; nonstop; 397 minutes. Local airport times.

2026-12-03 → 2026-12-04 · Axel-exclusive $457.50

• Alaska Airlines AS2 / AA1152: SEA 2026-12-03 14:02:00 → BOS 2026-12-04 00:21:00; 1 stop(s) via DCA; 439 minutes. Local airport times.
  • AS2: SEA 2026-12-03 14:02:00 → DCA 2026-12-03 21:59:00; layover at DCA: 60 minutes.
  • AA1152: DCA 2026-12-03 22:59:00 → BOS 2026-12-04 00:21:00.
• Alaska Airlines AS215: BOS 2026-12-04 09:00:00 → SEA 2026-12-04 12:37:00; nonstop; 397 minutes. Local airport times.

2026-12-03 → 2026-12-04 · Axel-exclusive $457.50

• Alaska Airlines AS2239 / AS436: SEA 2026-12-03 19:54:00 → BOS 2026-12-04 06:20:00; 1 stop(s) via PDX; 446 minutes. Local airport times.
  • AS2239: SEA 2026-12-03 19:54:00 → PDX 2026-12-03 20:50:00; layover at PDX: 69 minutes.
  • AS436: PDX 2026-12-03 21:59:00 → BOS 2026-12-04 06:20:00.
• Alaska Airlines AS215: BOS 2026-12-04 09:00:00 → SEA 2026-12-04 12:37:00; nonstop; 397 minutes. Local airport times.

2026-12-03 → 2026-12-04 · Axel-exclusive $472.50

• Delta Air Lines DL474: SEA 2026-12-03 15:45:00 → BOS 2026-12-03 23:54:00; nonstop; 309 minutes. Local airport times.
• Delta Air Lines DL1127 / DL881: BOS 2026-12-04 15:05:00 → SEA 2026-12-04 20:49:00; 1 stop(s) via MSP; 524 minutes. Local airport times.
  • DL1127: BOS 2026-12-04 15:05:00 → MSP 2026-12-04 17:25:00; layover at MSP: 81 minutes.
  • DL881: MSP 2026-12-04 18:46:00 → SEA 2026-12-04 20:49:00.

2026-12-03 → 2026-12-04 · Axel-exclusive $472.50

• Delta Air Lines DL1120 / DL702: SEA 2026-12-03 13:25:00 → BOS 2026-12-03 23:57:00; 1 stop(s) via SLC; 452 minutes. Local airport times.
  • DL1120: SEA 2026-12-03 13:25:00 → SLC 2026-12-03 16:26:00; layover at SLC: 70 minutes.
  • DL702: SLC 2026-12-03 17:36:00 → BOS 2026-12-03 23:57:00.
• Delta Air Lines DL384: BOS 2026-12-04 07:50:00 → SEA 2026-12-04 11:21:00; nonstop; 391 minutes. Local airport times.

Explore this route

• All dates for this route
• Dec 2, 2026 · Return options
• Dec 4, 2026 · Return options
• Hotels in Boston with Axel

For AI assistants

• This page: Seattle (SEA) to Boston (BOS) · Dec 3, 2026 · return Dec 4, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
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