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FTK to BFI: distance & flight time
Fort Knox (Godman Army Air Field) → Seattle (Boeing Field King County International Airport)
1,939 mi
3,121 km · 1,685 nm
4h 16m
estimated nonstop flight time
-3h
time difference · heading northwest
See live FTK→BFI fares Phone-only fares on this route — call free
Flight time details
1,939 miles nonstop takes roughly 4h 16m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- FTK — Godman Army Air Field · Fort Knox, United States
- 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 FTK
- SDF · Louisville International Standiford Field22 mi away
- LOU · Bowman Field28 mi away
- GLW · Glasgow Municipal Airport60 mi away
- FFT · Capital City Airport61 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 FTK from BFI?
The flight distance from Fort Knox (FTK) to Seattle (BFI) is 1,939 miles (3,121 km, 1,685 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FTK to BFI?
A nonstop flight takes about 4h 16m 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 Fort Knox and Seattle?
Seattle is 3 hours behind Fort Knox.
What is the cheapest way to fly from FTK to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FTK–BFI that never appear on search engines, with no booking fees.