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BTM to BFI: distance & flight time
Butte (Bert Mooney Airport) → Seattle (Boeing Field King County International Airport)
476 mi
767 km · 414 nm
1h 30m
estimated nonstop flight time
-1h
time difference · heading west
See live BTM→BFI fares Phone-only fares on this route — call free
Flight time details
476 miles nonstop takes roughly 1h 30m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- BTM — Bert Mooney Airport · Butte, 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 BTM
- HLN · Helena Regional Airport51 mi away
- BZN · Gallatin Field66 mi away
- SMN · Lemhi County Airport88 mi away
- LVM · Mission Field100 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 BTM from BFI?
The flight distance from Butte (BTM) to Seattle (BFI) is 476 miles (767 km, 414 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BTM to BFI?
A nonstop flight takes about 1h 30m 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 Butte and Seattle?
Seattle is 1 hour behind Butte.
What is the cheapest way to fly from BTM to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BTM–BFI that never appear on search engines, with no booking fees.