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BKK to BFI: distance & flight time
Bangkok (Suvarnabhumi Airport) → Seattle (Boeing Field King County International Airport)
7,445 mi
11,982 km · 6,470 nm
15h 4m
estimated nonstop flight time
-14h
time difference · heading northeast
See live BKK→BFI fares Phone-only fares on this route — call free
Flight time details
7,445 miles nonstop takes roughly 15h 4m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- BKK — Suvarnabhumi Airport · Bangkok, Thailand
- 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 BKK
- DMK · Don Mueang International Airport19 mi away
- KDT · Kamphaeng Saen Airport63 mi away
- UTP · U-Tapao International Airport71 mi away
- HHQ · Hua Hin Airport90 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 BKK from BFI?
The flight distance from Bangkok (BKK) to Seattle (BFI) is 7,445 miles (11,982 km, 6,470 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BKK to BFI?
A nonstop flight takes about 15h 4m 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 Bangkok and Seattle?
Seattle is 14 hours behind Bangkok.
What is the cheapest way to fly from BKK to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BKK–BFI that never appear on search engines, with no booking fees.