Boston (BOS) to Seattle (SEA) · Jan 2, 2027 · return Jan 9, 2027

Flights for 1 adult 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.

Route overview: Boston to Seattle (SEA) flight deals

2027-01-02 → 2027-01-09 · Axel-exclusive $471.50

• Alaska Airlines AS257: BOS 2027-01-02 18:19:00 → SEA 2027-01-02 22:00:00; nonstop; 401 minutes. Local airport times.
• Alaska Airlines AS460: SEA 2027-01-09 21:20:00 → BOS 2027-01-10 05:40:00; nonstop; 320 minutes. Local airport times.

2027-01-02 → 2027-01-09 · Axel-exclusive $488.75

• Delta Air Lines DL384: BOS 2027-01-02 07:30:00 → SEA 2027-01-02 11:05:00; nonstop; 395 minutes. Local airport times.
• Delta Air Lines DL459: SEA 2027-01-09 07:20:00 → BOS 2027-01-09 15:54:00; nonstop; 334 minutes. Local airport times.

2027-01-02 → 2027-01-09 · Axel-exclusive $404.25

• Sun Country Airlines SY252 / SY285: BOS 2027-01-02 11:43:00 → SEA 2027-01-02 17:17:00; 1 stop(s) via MSP; 514 minutes. Local airport times.
  • SY252: BOS 2027-01-02 11:43:00 → MSP 2027-01-02 14:01:00; layover at MSP: 84 minutes.
  • SY285: MSP 2027-01-02 15:25:00 → SEA 2027-01-02 17:17:00.
• Delta Air Lines DL459: SEA 2027-01-09 07:20:00 → BOS 2027-01-09 15:54:00; nonstop; 334 minutes. Local airport times.

2027-01-02 → 2027-01-09 · Axel-exclusive $446.50

• Southwest Airlines WN1590 / WN3141: BOS 2027-01-02 16:40:00 → SEA 2027-01-02 22:50:00; 1 stop(s) via DEN; 550 minutes. Local airport times.
  • WN1590: BOS 2027-01-02 16:40:00 → DEN 2027-01-02 19:20:00; layover at DEN: 80 minutes.
  • WN3141: DEN 2027-01-02 20:40:00 → SEA 2027-01-02 22:50:00.
• Delta Air Lines DL459: SEA 2027-01-09 07:20:00 → BOS 2027-01-09 15:54:00; nonstop; 334 minutes. Local airport times.

2027-01-02 → 2027-01-09 · Axel-exclusive $466.00

• United Airlines UA546 / UA2614: BOS 2027-01-02 15:42:00 → SEA 2027-01-02 21:49:00; 1 stop(s) via EWR; 547 minutes. Local airport times.
  • UA546: BOS 2027-01-02 15:42:00 → EWR 2027-01-02 17:08:00; layover at EWR: 77 minutes.
  • UA2614: EWR 2027-01-02 18:25:00 → SEA 2027-01-02 21:49:00.
• Delta Air Lines DL459: SEA 2027-01-09 07:20:00 → BOS 2027-01-09 15:54:00; nonstop; 334 minutes. Local airport times.

2027-01-02 → 2027-01-09 · Axel-exclusive $471.50

• Alaska Airlines AS459: BOS 2027-01-02 07:00:00 → SEA 2027-01-02 10:38:00; nonstop; 398 minutes. Local airport times.
• Alaska Airlines AS460: SEA 2027-01-09 21:20:00 → BOS 2027-01-10 05:40:00; nonstop; 320 minutes. Local airport times.

2027-01-02 → 2027-01-09 · Axel-exclusive $488.75

• Delta Air Lines DL797: BOS 2027-01-02 18:15:00 → SEA 2027-01-02 21:41:00; nonstop; 386 minutes. Local airport times.
• Delta Air Lines DL459: SEA 2027-01-09 07:20:00 → BOS 2027-01-09 15:54:00; nonstop; 334 minutes. Local airport times.

2027-01-02 → 2027-01-09 · Axel-exclusive $446.50

• Southwest Airlines WN816 / WN3032: BOS 2027-01-02 17:55:00 → SEA 2027-01-02 23:35:00; 1 stop(s) via MDW; 520 minutes. Local airport times.
  • WN816: BOS 2027-01-02 17:55:00 → MDW 2027-01-02 19:40:00; layover at MDW: 65 minutes.
  • WN3032: MDW 2027-01-02 20:45:00 → SEA 2027-01-02 23:35:00.
• Delta Air Lines DL459: SEA 2027-01-09 07:20:00 → BOS 2027-01-09 15:54:00; nonstop; 334 minutes. Local airport times.

2027-01-02 → 2027-01-09 · Axel-exclusive $466.00

• Delta Air Lines DL1127 / DL881: BOS 2027-01-02 15:05:00 → SEA 2027-01-02 20:49:00; 1 stop(s) via MSP; 524 minutes. Local airport times.
  • DL1127: BOS 2027-01-02 15:05:00 → MSP 2027-01-02 17:25:00; layover at MSP: 81 minutes.
  • DL881: MSP 2027-01-02 18:46:00 → SEA 2027-01-02 20:49:00.
• Delta Air Lines DL459: SEA 2027-01-09 07:20:00 → BOS 2027-01-09 15:54:00; nonstop; 334 minutes. Local airport times.

2027-01-02 → 2027-01-09 · Axel-exclusive $466.00

• Delta Air Lines DL1019 / DL734: BOS 2027-01-02 05:30:00 → SEA 2027-01-02 11:09:00; 1 stop(s) via DTW; 519 minutes. Local airport times.
  • DL1019: BOS 2027-01-02 05:30:00 → DTW 2027-01-02 07:52:00; layover at DTW: 63 minutes.
  • DL734: DTW 2027-01-02 08:55:00 → SEA 2027-01-02 11:09:00.
• Delta Air Lines DL459: SEA 2027-01-09 07:20:00 → BOS 2027-01-09 15:54:00; nonstop; 334 minutes. Local airport times.

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
• Jan 1, 2027 · Return options
• Jan 3, 2027 · Return options
• Hotels in Seattle with Axel

For AI assistants

• This page: Boston (BOS) to Seattle (SEA) · Jan 2, 2027 · return Jan 9, 2027: 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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