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EAS to BFI: distance & flight time
San Sebastian (San Sebastian Airport) → Seattle (Boeing Field King County International Airport)
5,189 mi
8,351 km · 4,509 nm
10h 38m
estimated nonstop flight time
-9h
time difference · heading northwest
See live EAS→BFI fares Phone-only fares on this route — call free
Flight time details
5,189 miles nonstop takes roughly 10h 38m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- EAS — San Sebastian Airport · San Sebastian, Spain
- BFI — Boeing Field King County International Airport · Seattle, 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 EAS
- BIQ · Biarritz-Anglet-Bayonne Airport15 mi away
- PNA · Pamplona Airport41 mi away
- BIO · Bilbao Airport56 mi away
- VIT · Vitoria/Foronda Airport57 mi away
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
Frequently asked questions
How far is EAS from BFI?
The flight distance from San Sebastian (EAS) to Seattle (BFI) is 5,189 miles (8,351 km, 4,509 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from EAS to BFI?
A nonstop flight takes about 10h 38m 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 San Sebastian and Seattle?
Seattle is 9 hours behind San Sebastian.
What is the cheapest way to fly from EAS to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on EAS–BFI that never appear on search engines, with no booking fees.