Seattle (SEA) to Boston (BOS), Nov 21–27, 2026: from $571 round trip

Seattle (SEA) to Boston (BOS), Nov 21–27, 2026: from $571 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $571 round trip, Axel-exclusive, American Airlines / Alaska Airlines, 1 stop, Nov 21–27, 2026, 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. 1 checked bag per traveler included. Basic economy may apply.

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

2026-11-21 → 2026-11-27 · Axel-exclusive $603.26

• Alaska Airlines AS279: SEA 2026-11-21 08:51:00 → BOS 2026-11-21 17:16:00; nonstop; 325 minutes. Local airport times.
• Alaska Airlines AS215: BOS 2026-11-27 09:00:00 → SEA 2026-11-27 12:37:00; nonstop; 397 minutes. Local airport times.

2026-11-21 → 2026-11-27 · Axel-exclusive $640.26

• Delta Air Lines DL473: SEA 2026-11-21 23:07:00 → BOS 2026-11-22 07:20:00; nonstop; 313 minutes. Local airport times.
• Delta Air Lines DL384: BOS 2026-11-27 07:50:00 → SEA 2026-11-27 11:21:00; nonstop; 391 minutes. Local airport times.

2026-11-21 → 2026-11-27 · Axel-exclusive $571.13

• American Airlines AA2379 / AA2089: SEA 2026-11-21 23:59:00 → BOS 2026-11-22 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
  • AA2379: SEA 2026-11-21 23:59:00 → ORD 2026-11-22 05:55:00; layover at ORD: 64 minutes.
  • AA2089: ORD 2026-11-22 06:59:00 → BOS 2026-11-22 10:32:00.
• Alaska Airlines AS215: BOS 2026-11-27 09:00:00 → SEA 2026-11-27 12:37:00; nonstop; 397 minutes. Local airport times.

2026-11-21 → 2026-11-27 · Axel-exclusive $603.26

• Alaska Airlines AS214: SEA 2026-11-21 23:22:00 → BOS 2026-11-22 07:40:00; nonstop; 318 minutes. Local airport times.
• Alaska Airlines AS215: BOS 2026-11-27 09:00:00 → SEA 2026-11-27 12:37:00; nonstop; 397 minutes. Local airport times.

2026-11-21 → 2026-11-27 · Axel-exclusive $640.26

• Delta Air Lines DL876: SEA 2026-11-21 15:55:00 → BOS 2026-11-22 00:13:00; nonstop; 318 minutes. Local airport times.
• Delta Air Lines DL384: BOS 2026-11-27 07:50:00 → SEA 2026-11-27 11:21:00; nonstop; 391 minutes. Local airport times.

2026-11-21 → 2026-11-27 · Axel-exclusive $571.13

• American Airlines AA2203 / AA1874: SEA 2026-11-21 12:34:00 → BOS 2026-11-21 23:13:00; 1 stop(s) via PHL; 459 minutes. Local airport times.
  • AA2203: SEA 2026-11-21 12:34:00 → PHL 2026-11-21 20:35:00; layover at PHL: 75 minutes.
  • AA1874: PHL 2026-11-21 21:50:00 → BOS 2026-11-21 23:13:00.
• Alaska Airlines AS215: BOS 2026-11-27 09:00:00 → SEA 2026-11-27 12:37:00; nonstop; 397 minutes. Local airport times.

2026-11-21 → 2026-11-27 · Axel-exclusive $579.63

• Alaska Airlines AS2239 / AS436: SEA 2026-11-21 19:54:00 → BOS 2026-11-22 06:20:00; 1 stop(s) via PDX; 446 minutes. Local airport times.
  • AS2239: SEA 2026-11-21 19:54:00 → PDX 2026-11-21 20:50:00; layover at PDX: 69 minutes.
  • AS436: PDX 2026-11-21 21:59:00 → BOS 2026-11-22 06:20:00.
• Alaska Airlines AS215: BOS 2026-11-27 09:00:00 → SEA 2026-11-27 12:37:00; nonstop; 397 minutes. Local airport times.

2026-11-21 → 2026-11-27 · Axel-exclusive $579.63

• Alaska Airlines AS314 / AA4801: SEA 2026-11-21 09:16:00 → BOS 2026-11-21 19:55:00; 1 stop(s) via STL; 459 minutes. Local airport times.
  • AS314: SEA 2026-11-21 09:16:00 → STL 2026-11-21 15:06:00; layover at STL: 69 minutes.
  • AA4801: STL 2026-11-21 16:15:00 → BOS 2026-11-21 19:55:00.
• Alaska Airlines AS215: BOS 2026-11-27 09:00:00 → SEA 2026-11-27 12:37:00; nonstop; 397 minutes. Local airport times.

2026-11-21 → 2026-11-27 · Axel-exclusive $609.88

• Delta Air Lines DL1120 / DL702: SEA 2026-11-21 13:25:00 → BOS 2026-11-21 23:57:00; 1 stop(s) via SLC; 452 minutes. Local airport times.
  • DL1120: SEA 2026-11-21 13:25:00 → SLC 2026-11-21 16:26:00; layover at SLC: 70 minutes.
  • DL702: SLC 2026-11-21 17:36:00 → BOS 2026-11-21 23:57:00.
• Delta Air Lines DL384: BOS 2026-11-27 07:50:00 → SEA 2026-11-27 11:21:00; nonstop; 391 minutes. Local airport times.

2026-11-21 → 2026-11-27 · Axel-exclusive $609.88

• Delta Air Lines DL473: SEA 2026-11-21 23:15:00 → BOS 2026-11-22 07:36:00; nonstop; 321 minutes. Local airport times.
• Delta Air Lines DL1127 / DL881: BOS 2026-11-27 15:05:00 → SEA 2026-11-27 20:49:00; 1 stop(s) via MSP; 524 minutes. Local airport times.
  • DL1127: BOS 2026-11-27 15:05:00 → MSP 2026-11-27 17:25:00; layover at MSP: 81 minutes.
  • DL881: MSP 2026-11-27 18:46:00 → SEA 2026-11-27 20:49:00.

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 20, 2026 · Return options
• Nov 22, 2026 · Return options
• Hotels in Boston with Axel

For AI assistants

• This page: Seattle (SEA) to Boston (BOS) · Nov 21, 2026 · return Nov 27, 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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