Boston to Seattle flights
Direct and connecting flights from General Edward Lawrence Logan International Airport (BOS) to Seattle Tacoma International Airport (SEA) — airlines, aircraft types, and the safety record for this route.
Route FAQ
How long does the flight from Boston to Seattle take?
Flight time from Boston (BOS) to Seattle (SEA) depends on routing, aircraft type, and whether the flight is direct or connecting. A direct flight typically reflects great-circle distance plus winds, while one-stop options can add several hours depending on the layover airport. The typical block time and frequency we have observed for this route are shown above.
Which airlines fly from Boston to Seattle?
Airline availability for BOS to SEA changes by season and sometimes week to week as carriers adjust capacity. The airlines and aircraft types observed operating this route, both direct and connecting, are listed below based on real flight-tracking data.
Are there direct flights from Boston to Seattle?
Direct (nonstop) availability on BOS to SEA varies by date, day of week, and season. Busy city pairs usually have multiple daily nonstops, while thinner routes may only have direct service a few days per week or only during peak seasons.
No fatal or serious occurrence involving any operator on this pair in the last 90 days.
- Alaska Airlines58
- Delta Air Lines40
- JetBlue Airways40
- Hainan AirlinesNo data
| Carrier | Sightings / 90d | Safety events |
|---|---|---|
| Delta Air Lines | 6 sightings | No recorded events |
| Alaska Airlines | 5 sightings | No recorded events |
| JetBlue Airways | 1 sighting | No recorded events |
| Hainan Airlines | 1 sighting | No recorded events |
Planning BOS → SEA
BOS to SEA is a long-haul route of 4,006 km (2,489 mi). See the return SEA → BOS route.
Alternative airports near Boston: Norwood (OWD) — 23 km, Bedford (BED) — 26 km, Beverly (BVY) — 26 km.
Alternative airports near Seattle: Seattle (BFI) — 9 km, Renton (RNT) — 9 km, Tacoma (TIW) — 28 km.