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BWI to BFI: distance & flight time
Baltimore (Baltimore/Washington International Thurgood Marshall Airport) → Seattle (Boeing Field King County International Airport)
2,328 mi
3,747 km · 2,023 nm
5h 2m
estimated nonstop flight time
-3h
time difference · heading northwest
See live BWI→BFI fares Phone-only fares on this route — call free
Flight time details
2,328 miles nonstop takes roughly 5h 2m 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
- BWI — Baltimore/Washington International Thurgood Marshall Airport · Baltimore, 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 BWI
- DCA · Ronald Reagan Washington National Airport30 mi away
- IAD · Washington Dulles International Airport45 mi away
- FME · Tipton Airport8 mi away
- ANP · Lee Airport17 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 BWI from BFI?
The flight distance from Baltimore (BWI) to Seattle (BFI) is 2,328 miles (3,747 km, 2,023 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BWI to BFI?
A nonstop flight takes about 5h 2m 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 Baltimore and Seattle?
Seattle is 3 hours behind Baltimore.
What is the cheapest way to fly from BWI to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BWI–BFI that never appear on search engines, with no booking fees.