Seattle to Boston (BFI–BOS) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
BFI–BOS is served by 1 airline with nonstop service. TWY leads the route. The flight covers 2,488 miles in approximately 5h 37m. Beyond nonstop, 33 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| TWY TWY | 0 | – | – | – | – | – |
Connection Landscape
On-Time Performance
Other ways to reach Boston from Seattle
| Metric | BFI→BOS | SEA→BOS |
|---|---|---|
| Distance from BFI | – | 5 mi |
| Nonstop airlines | 1 | 4 |
| Weekly flights | 1 | 53 |
| Flight time | 5h 37m | 5h 19m |
Travel Essentials
BFI: MDT · BOS: EDT
When it's 6:00 PM in Seattle, it's 8:00 PM in Boston.
Silver Line SL1 (free from Logan) runs to South Station in 15–20 minutes, connecting to the Red Line subway and Amtrak services. The Massport Shuttle connects all Logan terminals and the remote parking areas; it's also the transfer between terminals. Water taxi to Long Wharf (downtown) is $12 and runs seasonally; check weather and schedule.Taxis to downtown Boston cost $30–45 (tunnel toll included in meter). Ride-hails pick up at designated zones; follow the Logan app directions to avoid the main curb chaos. MBTA Blue Line (Airport station, free shuttle from terminals) reaches downtown in 10 minutes but requires a separate transfer. Amtrak Acela to New York departs from South Station (2.5h, from $49).
Humid continental climate with significant maritime influence. Winters (December–March) bring regular Nor'easters. These coastal storms that dump heavy snow and produce high winds, frequently closing Logan for hours and causing mass cancellations. Ice storms hit several times each winter. BOS is one of the most weather-disrupted major US airports in winter.
Summers are warm (22–29°C) with humidity and afternoon thunderstorms causing July–August delays. Hurricane remnants reach New England in September–October. Spring and fall are mild (8–18°C) but unpredictable. Logan's harbor location means it runs windier than inland readings suggest. Factor this into small aircraft routing.
BFI–BOS Quick Facts
Frequently Asked Questions
Flights from BFI to BOS
King County International Airport - Boeing Field (BFI) and Boston Logan International Airport (BOS) are connected by nonstop service from TWY. With 1 weekly departures, this is a regularly served route.
BFI to BOS Flight Duration and Schedule
Nonstop flight time from BFI to BOS ranges from 5 hours 37 minutes. The route covers a distance of 2,488 miles (4,003 km).
Connecting Options and Alternatives
33 one-stop connections are available, with the fastest taking approximately 6 hours via YVR. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Seattle (SEA).