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MSL to BFI: distance & flight time
Muscle Shoals (Northwest Alabama Regional Airport) → Seattle (Boeing Field King County International Airport)
1,988 mi
3,199 km · 1,727 nm
4h 22m
estimated nonstop flight time
-2h
time difference · heading northwest
See live MSL→BFI fares Phone-only fares on this route — call free
Flight time details
1,988 miles nonstop takes roughly 4h 22m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- MSL — Northwest Alabama Regional Airport · Muscle Shoals, 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 MSL
- DCU · Pryor Field Regional Airport38 mi away
- HSV · Huntsville International Carl T Jones Field48 mi away
- HUA · Redstone Army Air Field53 mi away
- TUP · Tupelo Regional Airport74 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 MSL from BFI?
The flight distance from Muscle Shoals (MSL) to Seattle (BFI) is 1,988 miles (3,199 km, 1,727 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from MSL to BFI?
A nonstop flight takes about 4h 22m 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 Muscle Shoals and Seattle?
Seattle is 2 hours behind Muscle Shoals.
What is the cheapest way to fly from MSL to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on MSL–BFI that never appear on search engines, with no booking fees.