flight_takeoff SEA → BOS

Cheap Flights from Seattle to Boston

Compare fares from Seattle (SEA) to Boston (BOS) across hundreds of airlines. The route covers about 2,489 miles with a typical nonstop time of ~5h 30m.

straighten

Distance

2,489 mi

4,006 km

schedule

Est. flight time

5h 30m

nonstop

flight

Nonstop service

Available

3 carriers

language

Time difference

3 hours ahead

Boston

Flying from Seattle to Boston

The journey from Seattle (SEA) to Boston (BOS) spans roughly 2,489 miles (4,006 km), a nonstop flight of about 5h 30m. On arrival, Boston is 3 hours ahead Seattle. Lets Fly Travel compares live fares across hundreds of airlines so you can find the best deal — and every booking is reviewed by a real travel agent.

Airlines on this route

Carriers that have operated nonstop service between SEA and BOS include:

flightAlaska Airlines flightAmerican Airlines flightJetBlue Airways

Airline availability changes over time — search your dates for current operators and fares.

Seattle to Boston — FAQs

How long is the flight from Seattle to Boston? expand_more
A nonstop flight from Seattle (SEA) to Boston (BOS) takes approximately 5h 30m, covering a distance of about 2489 miles (4006 km). Actual flight time varies with aircraft, routing and winds.
Which airlines fly from Seattle to Boston? expand_more
Airlines that have operated nonstop service on the SEA–BOS route include Alaska Airlines, American Airlines, JetBlue Airways. Use our search to compare current carriers, schedules and fares.
Is there a nonstop flight from Seattle to Boston? expand_more
Yes. The SEA–BOS route has nonstop service. Nonstop availability can vary by season and day of week, so check live results for your dates.
How far is Boston from Seattle? expand_more
The distance from Seattle (SEA) to Boston (BOS) is about 2489 miles (4006 km) as the crow flies.
What is the time difference between Seattle and Boston? expand_more
Boston is 3 hours ahead Seattle. Factor the time change into your arrival and connection planning.
When is the best time to book flights from Seattle to Boston? expand_more
For domestic routes like Seattle to Boston, booking about 1–3 months ahead and choosing mid-week departures usually finds the best prices. Avoid peak Friday and Sunday travel where possible.

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