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BFI to SSN: distance & flight time
Seattle (Boeing Field King County International Airport) → Seoul East (Seoul Air Base (K-16))
5,177 mi
8,332 km · 4,499 nm
10h 37m
estimated nonstop flight time
+16h
time difference · heading northwest
See live BFI→SSN fares Phone-only fares on this route — call free
Flight time details
5,177 miles nonstop takes roughly 10h 37m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time gain when reading arrival times on your ticket.
The two airports
- BFI — Boeing Field King County International Airport · Seattle, United States
- SSN — Seoul Air Base (K-16) · Seoul East, South Korea
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 SSN
- ICN · Incheon International Airport36 mi away
- SWU · Suwon Airport15 mi away
- GMP · Gimpo International Airport19 mi away
- OSN · Osan Air Base25 mi away
Frequently asked questions
How far is BFI from SSN?
The flight distance from Seattle (BFI) to Seoul East (SSN) 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 BFI to SSN?
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 Seattle and Seoul East?
Seoul East is 16 hours ahead of Seattle.
What is the cheapest way to fly from BFI to SSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BFI–SSN that never appear on search engines, with no booking fees.