Cheap flights from Boston to Seattle
Flights from Boston to Seattle currently start at €204. Below are the cheapest dates, typical duration and airlines on this route. Search live fares when you are ready to book — prices change during the day.
Prices refresh daily · per adult · Typical time: 6h 17m
Key facts
- Lowest fare
- €204 · Mon 31 May
- Direct flights
- Yes
- Flight time
- 6h 17m
- Airlines
- Alaska Airlines, jetBlue
- Cheapest month
- May 2027
- Distance
- 4004 km
Round trip
One way
Questions people ask before they book
How much are flights from Boston to Seattle?
The lowest fare we currently show from Boston to Seattle is €204 for one adult. That price is tied to specific dates and can sell out.
Are there direct flights from Boston to Seattle?
Yes. Direct flights from Boston to Seattle show up in current fares. Filter by Direct when you search to hide connections.
Which airlines fly from Boston to Seattle?
Airlines showing fares on this route include Alaska Airlines, jetBlue. The cheapest airline is not always the one with a bag included.
How long is the flight from Boston to Seattle?
A typical itinerary from Boston to Seattle takes about 6h 17m, including connections when the cheapest fare is not direct.
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May 2027