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BFI to GRF: distance & flight time
Seattle (Boeing Field King County International Airport) → Fort Lewis (Gray Army Air Field)
34 mi
54 km · 29 nm
33m
estimated nonstop flight time
Same time
time difference · heading southwest
See live BFI→GRF fares Phone-only fares on this route — call free
Flight time details
34 miles nonstop takes roughly 33m gate to gate, flying southwest. 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
- BFI — Boeing Field King County International Airport · Seattle, United States
- GRF — Gray Army Air Field · Fort Lewis, 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 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
Near GRF
- SEA · Seattle Tacoma International Airport29 mi away
- TCM · McChord Air Force Base6 mi away
- TIW · Tacoma Narrows Airport13 mi away
- OLM · Olympia Regional Airport17 mi away
Frequently asked questions
How far is BFI from GRF?
The flight distance from Seattle (BFI) to Fort Lewis (GRF) is 34 miles (54 km, 29 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BFI to GRF?
A nonstop flight takes about 33m 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 BFI to GRF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BFI–GRF that never appear on search engines, with no booking fees.