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GAJ to BFI: distance & flight time
Yamagata (Yamagata Airport) → Seattle (Boeing Field King County International Airport)
4,629 mi
7,449 km · 4,022 nm
9h 33m
estimated nonstop flight time
-16h
time difference · heading northeast
See live GAJ→BFI fares Phone-only fares on this route — call free
Flight time details
4,629 miles nonstop takes roughly 9h 33m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time set-back when reading arrival times on your ticket.
The two airports
- GAJ — Yamagata Airport · Yamagata, Japan
- 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 GAJ
- SDJ · Sendai Airport35 mi away
- SYO · Shonai Airport42 mi away
- KIJ · Niigata Airport75 mi away
- HNA · Hanamaki Airport81 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 GAJ from BFI?
The flight distance from Yamagata (GAJ) to Seattle (BFI) is 4,629 miles (7,449 km, 4,022 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAJ to BFI?
A nonstop flight takes about 9h 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 time difference between Yamagata and Seattle?
Seattle is 16 hours behind Yamagata.
What is the cheapest way to fly from GAJ to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAJ–BFI that never appear on search engines, with no booking fees.