Seattle (SEA) to Boston (BOS), Dec 23, 2026 – Jan 1, 2027: from $514 round trip
Seattle (SEA) to Boston (BOS), Dec 23, 2026 – Jan 1, 2027: from $514 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $514 round trip, Axel-exclusive, Delta Air Lines, 1 stop, Dec 23, 2026 – Jan 1, 2027, 1 adult, economy, checked Oct 29, 2026. 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.
| Exact travel dates | Airline | Flights | Times, duration, stops | Total price | Price issued (UTC) |
|---|---|---|---|---|---|
| 2026-12-23 → 2027-01-01 | Delta Air Lines | DL473 / DL384 | 23:15:00→07:36:00 5h 21m nonstop · 07:50:00→11:21:00 6h 31m nonstop | Axel-exclusive $545.73 | 2026-10-29T00:39:14Z |
| 2026-12-23 → 2027-01-01 | Delta Air Lines | DL876 / DL384 | 15:55:00→00:13:00 5h 18m nonstop · 07:50:00→11:21:00 6h 31m nonstop | Axel-exclusive $545.73 | 2026-10-29T00:39:14Z |
| 2026-12-23 → 2027-01-01 | Delta Air Lines | DL1120 + DL702 / DL384 | 13:25:00→23:57:00 7h 32m 1 stop via SLC · 07:50:00→11:21:00 6h 31m nonstop | Axel-exclusive $514.23 | 2026-10-29T00:39:14Z |
| 2026-12-23 → 2027-01-01 | Delta Air Lines | DL473 / DL1019 + DL734 | 23:15:00→07:37:00 5h 22m nonstop · 05:30:00→11:09:00 8h 39m 1 stop via DTW | Axel-exclusive $518.05 | 2026-10-29T00:39:14Z |
Route overview: Seattle to Boston (BOS) flight deals
2026-12-23 → 2027-01-01 · Axel-exclusive $545.73
- Delta Air Lines DL473: SEA 2026-12-23 23:15:00 → BOS 2026-12-24 07:36:00; nonstop; 321 minutes. Local airport times.
- Delta Air Lines DL384: BOS 2027-01-01 07:50:00 → SEA 2027-01-01 11:21:00; nonstop; 391 minutes. Local airport times.
2026-12-23 → 2027-01-01 · Axel-exclusive $545.73
- Delta Air Lines DL876: SEA 2026-12-23 15:55:00 → BOS 2026-12-24 00:13:00; nonstop; 318 minutes. Local airport times.
- Delta Air Lines DL384: BOS 2027-01-01 07:50:00 → SEA 2027-01-01 11:21:00; nonstop; 391 minutes. Local airport times.
2026-12-23 → 2027-01-01 · Axel-exclusive $514.23
- Delta Air Lines DL1120 / DL702: SEA 2026-12-23 13:25:00 → BOS 2026-12-23 23:57:00; 1 stop(s) via SLC; 452 minutes. Local airport times.
- DL1120: SEA 2026-12-23 13:25:00 → SLC 2026-12-23 16:26:00; layover at SLC: 70 minutes.
- DL702: SLC 2026-12-23 17:36:00 → BOS 2026-12-23 23:57:00.
- Delta Air Lines DL384: BOS 2027-01-01 07:50:00 → SEA 2027-01-01 11:21:00; nonstop; 391 minutes. Local airport times.
2026-12-23 → 2027-01-01 · Axel-exclusive $518.05
- Delta Air Lines DL473: SEA 2026-12-23 23:15:00 → BOS 2026-12-24 07:37:00; nonstop; 322 minutes. Local airport times.
- Delta Air Lines DL1019 / DL734: BOS 2027-01-01 05:30:00 → SEA 2027-01-01 11:09:00; 1 stop(s) via DTW; 519 minutes. Local airport times.
- DL1019: BOS 2027-01-01 05:30:00 → DTW 2027-01-01 07:52:00; layover at DTW: 63 minutes.
- DL734: DTW 2027-01-01 08:55:00 → SEA 2027-01-01 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.
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