Cheap flights from Seattle to Boston
Flights from Seattle to Boston currently start at €160. 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 27m
Key facts
- Lowest fare
- €160 · Wed 4 Nov
- Direct flights
- Yes
- Flight time
- 6h 27m
- Airlines
- Alaska Airlines, American Airlines, United Airlines
- Cheapest month
- November 2026
- Distance
- 4004 km
Round trip
One way
Questions people ask before they book
How much are flights from Seattle to Boston?
The lowest fare we currently show from Seattle to Boston is €160 for one adult. That price is tied to specific dates and can sell out.
Are there direct flights from Seattle to Boston?
Yes. Direct flights from Seattle to Boston show up in current fares. Filter by Direct when you search to hide connections.
Which airlines fly from Seattle to Boston?
Airlines showing fares on this route include Alaska Airlines, American Airlines, United Airlines. The cheapest airline is not always the one with a bag included.
How long is the flight from Seattle to Boston?
A typical itinerary from Seattle to Boston takes about 6h 27m, including connections when the cheapest fare is not direct.
People also search
November 2026