Need help booking?
Unpublished phone-only deals available
BFI to YNY: distance & flight time
Seattle (Boeing Field King County International Airport) → Sokcho / Gangneung (Yangyang International Airport)
5,089 mi
8,190 km · 4,422 nm
10h 27m
estimated nonstop flight time
+16h
time difference · heading northwest
See live BFI→YNY fares Phone-only fares on this route — call free
Flight time details
5,089 miles nonstop takes roughly 10h 27m 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
- YNY — Yangyang International Airport · Sokcho / Gangneung, 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 YNY
- KAG · Gangneung Airport (K-18)26 mi away
- WJU · Wonju/Hoengseong Air Base (K-38/K-46)58 mi away
- ICN · Incheon International Airport128 mi away
- SSN · Seoul Air Base (K-16)95 mi away
Frequently asked questions
How far is BFI from YNY?
The flight distance from Seattle (BFI) to Sokcho / Gangneung (YNY) is 5,089 miles (8,190 km, 4,422 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BFI to YNY?
A nonstop flight takes about 10h 27m 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 Sokcho / Gangneung?
Sokcho / Gangneung is 16 hours ahead of Seattle.
What is the cheapest way to fly from BFI to YNY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BFI–YNY that never appear on search engines, with no booking fees.