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SSN to BFI: distance & flight time
Seoul East (Seoul Air Base (K-16)) → Seattle (Boeing Field King County International Airport)
5,177 mi
8,332 km · 4,499 nm
10h 37m
estimated nonstop flight time
-16h
time difference · heading northeast
See live SSN→BFI fares Phone-only fares on this route — call free
Flight time details
5,177 miles nonstop takes roughly 10h 37m 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
- SSN — Seoul Air Base (K-16) · Seoul East, South Korea
- 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 SSN
- ICN · Incheon International Airport36 mi away
- SWU · Suwon Airport15 mi away
- GMP · Gimpo International Airport19 mi away
- OSN · Osan Air Base25 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 SSN from BFI?
The flight distance from Seoul East (SSN) to Seattle (BFI) is 5,177 miles (8,332 km, 4,499 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SSN to BFI?
A nonstop flight takes about 10h 37m 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 Seoul East and Seattle?
Seattle is 16 hours behind Seoul East.
What is the cheapest way to fly from SSN to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SSN–BFI that never appear on search engines, with no booking fees.