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BYI to BFI: distance & flight time
Burley (Burley Municipal Airport) → Seattle (Boeing Field King County International Airport)
540 mi
869 km · 469 nm
1h 38m
estimated nonstop flight time
—
time difference · heading northwest
See live BYI→BFI fares Phone-only fares on this route — call free
Flight time details
540 miles nonstop takes roughly 1h 38m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- BYI — Burley Municipal Airport · Burley, 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 BYI
- TWF · Joslin Field Magic Valley Regional Airport37 mi away
- PIH · Pocatello Regional Airport65 mi away
- SUN · Friedman Memorial Airport72 mi away
- IDA · Idaho Falls Regional Airport109 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 BYI from BFI?
The flight distance from Burley (BYI) to Seattle (BFI) is 540 miles (869 km, 469 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BYI to BFI?
A nonstop flight takes about 1h 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 cheapest way to fly from BYI to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BYI–BFI that never appear on search engines, with no booking fees.