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BYF to BFI: distance & flight time
Albert (Albert-Bray Airport) → Seattle (Boeing Field King County International Airport)
4,947 mi
7,961 km · 4,299 nm
10h 10m
estimated nonstop flight time
-9h
time difference · heading northwest
See live BYF→BFI fares Phone-only fares on this route — call free
Flight time details
4,947 miles nonstop takes roughly 10h 10m 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
- BYF — Albert-Bray Airport · Albert, France
- 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 BYF
- CDG · Charles de Gaulle International Airport67 mi away
- XAB · Abbeville40 mi away
- XVS · Valenciennes-Denain Airport42 mi away
- BVA · Paris Beauvais Tillé Airport44 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 BYF from BFI?
The flight distance from Albert (BYF) to Seattle (BFI) is 4,947 miles (7,961 km, 4,299 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BYF to BFI?
A nonstop flight takes about 10h 10m 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 Albert and Seattle?
Seattle is 9 hours behind Albert.
What is the cheapest way to fly from BYF to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BYF–BFI that never appear on search engines, with no booking fees.