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BFI to BUF: distance & flight time
Seattle (Boeing Field King County International Airport) → Buffalo (Buffalo Niagara International Airport)
2,115 mi
3,404 km · 1,838 nm
4h 37m
estimated nonstop flight time
+3h
time difference · heading east
See live BFI→BUF fares Phone-only fares on this route — call free
Flight time details
2,115 miles nonstop takes roughly 4h 37m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- BFI — Boeing Field King County International Airport · Seattle, United States
- BUF — Buffalo Niagara International Airport · Buffalo, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near BFI
- SEA · Seattle Tacoma International Airport6 mi away
- RNT · Renton Municipal Airport5 mi away
- PWT · Bremerton National Airport22 mi away
- TIW · Tacoma Narrows Airport22 mi away
Near BUF
- IAG · Niagara Falls International Airport16 mi away
- YYZ · Lester B. Pearson International Airport68 mi away
- YCM · Niagara District Airport28 mi away
- DKK · Chautauqua County-Dunkirk Airport41 mi away
Frequently asked questions
How far is BFI from BUF?
The flight distance from Seattle (BFI) to Buffalo (BUF) is 2,115 miles (3,404 km, 1,838 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BFI to BUF?
A nonstop flight takes about 4h 37m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Seattle and Buffalo?
Buffalo is 3 hours ahead of Seattle.
What is the cheapest way to fly from BFI to BUF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BFI–BUF that never appear on search engines, with no booking fees.