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YFX to BFI: distance & flight time
St. Lewis (St. Lewis (Fox Harbour) Airport) → Seattle (Boeing Field King County International Airport)
2,875 mi
4,626 km · 2,498 nm
6h 6m
estimated nonstop flight time
-4.5h
time difference · heading west
See live YFX→BFI fares Phone-only fares on this route — call free
Flight time details
2,875 miles nonstop takes roughly 6h 6m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4.5-hour time set-back when reading arrival times on your ticket.
The two airports
- YFX — St. Lewis (Fox Harbour) Airport · St. Lewis, Canada
- 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 YFX
- YMH · Mary's Harbour Airport9 mi away
- YWM · Williams Harbour Airport14 mi away
- YHA · Port Hope Simpson Airport28 mi away
- YAY · St. Anthony Airport70 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 YFX from BFI?
The flight distance from St. Lewis (YFX) to Seattle (BFI) is 2,875 miles (4,626 km, 2,498 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YFX to BFI?
A nonstop flight takes about 6h 6m 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 St. Lewis and Seattle?
Seattle is 4.5 hours behind St. Lewis.
What is the cheapest way to fly from YFX to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YFX–BFI that never appear on search engines, with no booking fees.