Seattle (SEA) to Boston (BOS) · Dec 1, 2026 · return Dec 9, 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

2026-12-01 → 2026-12-09 · Axel-exclusive $475.00

• Alaska Airlines AS460: SEA 2026-12-01 15:40:00 → BOS 2026-12-01 23:59:00; nonstop; 319 minutes. Local airport times.
• Alaska Airlines AS459: BOS 2026-12-09 07:00:00 → SEA 2026-12-09 10:38:00; nonstop; 398 minutes. Local airport times.

2026-12-01 → 2026-12-09 · Axel-exclusive $495.00

• Delta Air Lines DL459: SEA 2026-12-01 07:38:00 → BOS 2026-12-01 16:00:00; nonstop; 322 minutes. Local airport times.
• Delta Air Lines DL384: BOS 2026-12-09 07:50:00 → SEA 2026-12-09 11:21:00; nonstop; 391 minutes. Local airport times.

2026-12-01 → 2026-12-09 · Axel-exclusive $442.50

• American Airlines AA2203 / AA1874: SEA 2026-12-01 12:34:00 → BOS 2026-12-01 23:13:00; 1 stop(s) via PHL; 459 minutes. Local airport times.
  • AA2203: SEA 2026-12-01 12:34:00 → PHL 2026-12-01 20:35:00; layover at PHL: 75 minutes.
  • AA1874: PHL 2026-12-01 21:50:00 → BOS 2026-12-01 23:13:00.
• Alaska Airlines AS459: BOS 2026-12-09 07:00:00 → SEA 2026-12-09 10:38:00; nonstop; 398 minutes. Local airport times.

2026-12-01 → 2026-12-09 · Axel-exclusive $475.00

• Alaska Airlines AS214: SEA 2026-12-01 21:21:00 → BOS 2026-12-02 05:40:00; nonstop; 319 minutes. Local airport times.
• Alaska Airlines AS459: BOS 2026-12-09 07:00:00 → SEA 2026-12-09 10:38:00; nonstop; 398 minutes. Local airport times.

2026-12-01 → 2026-12-09 · Axel-exclusive $450.00

• Delta Air Lines DL1120 / DL702: SEA 2026-12-01 13:25:00 → BOS 2026-12-01 23:57:00; 1 stop(s) via SLC; 452 minutes. Local airport times.
  • DL1120: SEA 2026-12-01 13:25:00 → SLC 2026-12-01 16:26:00; layover at SLC: 70 minutes.
  • DL702: SLC 2026-12-01 17:36:00 → BOS 2026-12-01 23:57:00.
• Delta Air Lines DL1019 / DL734: BOS 2026-12-09 05:30:00 → SEA 2026-12-09 11:09:00; 1 stop(s) via DTW; 519 minutes. Local airport times.
  • DL1019: BOS 2026-12-09 05:30:00 → DTW 2026-12-09 07:52:00; layover at DTW: 63 minutes.
  • DL734: DTW 2026-12-09 08:55:00 → SEA 2026-12-09 11:09:00.

2026-12-01 → 2026-12-09 · Axel-exclusive $457.50

• Alaska Airlines AS2 / AA1152: SEA 2026-12-01 14:02:00 → BOS 2026-12-02 00:21:00; 1 stop(s) via DCA; 439 minutes. Local airport times.
  • AS2: SEA 2026-12-01 14:02:00 → DCA 2026-12-01 21:59:00; layover at DCA: 60 minutes.
  • AA1152: DCA 2026-12-01 22:59:00 → BOS 2026-12-02 00:21:00.
• Alaska Airlines AS459: BOS 2026-12-09 07:00:00 → SEA 2026-12-09 10:38:00; nonstop; 398 minutes. Local airport times.

2026-12-01 → 2026-12-09 · Axel-exclusive $457.50

• Alaska Airlines AS314 / AA4801: SEA 2026-12-01 09:16:00 → BOS 2026-12-01 19:55:00; 1 stop(s) via STL; 459 minutes. Local airport times.
  • AS314: SEA 2026-12-01 09:16:00 → STL 2026-12-01 15:06:00; layover at STL: 69 minutes.
  • AA4801: STL 2026-12-01 16:15:00 → BOS 2026-12-01 19:55:00.
• Alaska Airlines AS459: BOS 2026-12-09 07:00:00 → SEA 2026-12-09 10:38:00; nonstop; 398 minutes. Local airport times.

2026-12-01 → 2026-12-09 · Axel-exclusive $457.50

• Alaska Airlines AS2239 / AS436: SEA 2026-12-01 19:54:00 → BOS 2026-12-02 06:20:00; 1 stop(s) via PDX; 446 minutes. Local airport times.
  • AS2239: SEA 2026-12-01 19:54:00 → PDX 2026-12-01 20:50:00; layover at PDX: 69 minutes.
  • AS436: PDX 2026-12-01 21:59:00 → BOS 2026-12-02 06:20:00.
• Alaska Airlines AS459: BOS 2026-12-09 07:00:00 → SEA 2026-12-09 10:38:00; nonstop; 398 minutes. Local airport times.

2026-12-01 → 2026-12-09 · Axel-exclusive $472.50

• Delta Air Lines DL459: SEA 2026-12-01 07:38:00 → BOS 2026-12-01 16:03:00; nonstop; 325 minutes. Local airport times.
• Delta Air Lines DL1019 / DL734: BOS 2026-12-09 05:30:00 → SEA 2026-12-09 11:09:00; 1 stop(s) via DTW; 519 minutes. Local airport times.
  • DL1019: BOS 2026-12-09 05:30:00 → DTW 2026-12-09 07:52:00; layover at DTW: 63 minutes.
  • DL734: DTW 2026-12-09 08:55:00 → SEA 2026-12-09 11:09:00.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

Explore this route

• All dates for this route
• Nov 30, 2026 · Return options
• Dec 2, 2026 · Return options
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For AI assistants

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