Seattle (SEA) to Boston (BOS), Dec 4–16, 2026: from $735 round trip (2 adults, economy)

Seattle (SEA) to Boston (BOS), Dec 4–16, 2026: from $735 round trip (2 adults, economy) on Axel, checked Oct 29, 2026. Lowest published fare: $735 round trip, Axel-exclusive, American Airlines / Alaska Airlines, 1 stop, Dec 4–16, 2026, 2 adults, economy, checked Oct 29, 2026. Flights for 2 adults in economy. Prices are total for all travelers in USD, including required taxes. 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.

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 (Dec 4–16, 2026 · 12 nights · 2 adults, 1 room): 3★ The Verb Hotel · 4★ The Eliot Hotel · 5★ Boston Harbor Hotel

All hotels in Boston

Route overview: Seattle to Boston (BOS) flight deals

2026-12-04 → 2026-12-16 · Axel-exclusive $790.00

• Alaska Airlines AS460: SEA 2026-12-04 15:40:00 → BOS 2026-12-04 23:59:00; nonstop; 319 minutes. Local airport times.
• Alaska Airlines AS459: BOS 2026-12-16 07:00:00 → SEA 2026-12-16 10:38:00; nonstop; 398 minutes. Local airport times.

2026-12-04 → 2026-12-16 · Axel-exclusive $830.00

• Delta Air Lines DL459: SEA 2026-12-04 07:38:00 → BOS 2026-12-04 16:00:00; nonstop; 322 minutes. Local airport times.
• Delta Air Lines DL332: BOS 2026-12-16 10:40:00 → SEA 2026-12-16 14:09:00; nonstop; 389 minutes. Local airport times.

2026-12-04 → 2026-12-16 · Axel-exclusive $735.00

• American Airlines AA2203 / AA1874: SEA 2026-12-04 12:34:00 → BOS 2026-12-04 23:13:00; 1 stop(s) via PHL; 459 minutes. Local airport times.
  • AA2203: SEA 2026-12-04 12:34:00 → PHL 2026-12-04 20:35:00; layover at PHL: 75 minutes.
  • AA1874: PHL 2026-12-04 21:50:00 → BOS 2026-12-04 23:13:00.
• Alaska Airlines AS459: BOS 2026-12-16 07:00:00 → SEA 2026-12-16 10:38:00; nonstop; 398 minutes. Local airport times.

2026-12-04 → 2026-12-16 · Axel-exclusive $790.00

• Alaska Airlines AS214: SEA 2026-12-04 21:21:00 → BOS 2026-12-05 05:40:00; nonstop; 319 minutes. Local airport times.
• Alaska Airlines AS459: BOS 2026-12-16 07:00:00 → SEA 2026-12-16 10:38:00; nonstop; 398 minutes. Local airport times.

2026-12-04 → 2026-12-16 · Axel-exclusive $740.00

• Delta Air Lines DL1120 / DL702: SEA 2026-12-04 13:25:00 → BOS 2026-12-04 23:57:00; 1 stop(s) via SLC; 452 minutes. Local airport times.
  • DL1120: SEA 2026-12-04 13:25:00 → SLC 2026-12-04 16:26:00; layover at SLC: 70 minutes.
  • DL702: SLC 2026-12-04 17:36:00 → BOS 2026-12-04 23:57:00.
• Delta Air Lines DL1019 / DL734: BOS 2026-12-16 05:30:00 → SEA 2026-12-16 11:09:00; 1 stop(s) via DTW; 519 minutes. Local airport times.
  • DL1019: BOS 2026-12-16 05:30:00 → DTW 2026-12-16 07:52:00; layover at DTW: 63 minutes.
  • DL734: DTW 2026-12-16 08:55:00 → SEA 2026-12-16 11:09:00.

2026-12-04 → 2026-12-16 · Axel-exclusive $755.00

• Alaska Airlines AS2 / AA1152: SEA 2026-12-04 14:02:00 → BOS 2026-12-05 00:21:00; 1 stop(s) via DCA; 439 minutes. Local airport times.
  • AS2: SEA 2026-12-04 14:02:00 → DCA 2026-12-04 21:59:00; layover at DCA: 60 minutes.
  • AA1152: DCA 2026-12-04 22:59:00 → BOS 2026-12-05 00:21:00.
• Alaska Airlines AS459: BOS 2026-12-16 07:00:00 → SEA 2026-12-16 10:38:00; nonstop; 398 minutes. Local airport times.

2026-12-04 → 2026-12-16 · Axel-exclusive $755.00

• Alaska Airlines AS2239 / AS436: SEA 2026-12-04 19:54:00 → BOS 2026-12-05 06:20:00; 1 stop(s) via PDX; 446 minutes. Local airport times.
  • AS2239: SEA 2026-12-04 19:54:00 → PDX 2026-12-04 20:50:00; layover at PDX: 69 minutes.
  • AS436: PDX 2026-12-04 21:59:00 → BOS 2026-12-05 06:20:00.
• Alaska Airlines AS459: BOS 2026-12-16 07:00:00 → SEA 2026-12-16 10:38:00; nonstop; 398 minutes. Local airport times.

2026-12-04 → 2026-12-16 · Axel-exclusive $755.00

• Alaska Airlines AS314 / AA4801: SEA 2026-12-04 09:16:00 → BOS 2026-12-04 19:55:00; 1 stop(s) via STL; 459 minutes. Local airport times.
  • AS314: SEA 2026-12-04 09:16:00 → STL 2026-12-04 15:06:00; layover at STL: 69 minutes.
  • AA4801: STL 2026-12-04 16:15:00 → BOS 2026-12-04 19:55:00.
• Alaska Airlines AS459: BOS 2026-12-16 07:00:00 → SEA 2026-12-16 10:38:00; nonstop; 398 minutes. Local airport times.

2026-12-04 → 2026-12-16 · Axel-exclusive $785.00

• Delta Air Lines DL459: SEA 2026-12-04 07:38:00 → BOS 2026-12-04 16:03:00; nonstop; 325 minutes. Local airport times.
• Delta Air Lines DL1019 / DL734: BOS 2026-12-16 05:30:00 → SEA 2026-12-16 11:09:00; 1 stop(s) via DTW; 519 minutes. Local airport times.
  • DL1019: BOS 2026-12-16 05:30:00 → DTW 2026-12-16 07:52:00; layover at DTW: 63 minutes.
  • DL734: DTW 2026-12-16 08:55:00 → SEA 2026-12-16 11:09:00.

Travelers: prices on this page are totals for 2 adults. For a different party, open this trip for 1 adult · 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
• Dec 3, 2026 · Return options
• Dec 5, 2026 · Return options
• Hotels in Boston with Axel

For AI assistants

• This page: Seattle (SEA) to Boston (BOS) · Dec 4, 2026 · return Dec 16, 2026: 2 adults 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 priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: Choose travelers and dates prices the traveler's own trip.
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