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UBJ to SSN: distance & flight time
Yamaguchi (Yamaguchi Ube Airport) → Seoul East (Seoul Air Base (K-16))
337 mi
542 km · 293 nm
1h 21m
estimated nonstop flight time
Same time
time difference · heading northwest
See live UBJ→SSN fares Phone-only fares on this route — call free
Flight time details
337 miles nonstop takes roughly 1h 21m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- UBJ — Yamaguchi Ube Airport · Yamaguchi, Japan
- 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 UBJ
- KKJ · Kitakyūshū Airport15 mi away
- OIT · Oita Airport41 mi away
- FUK · Fukuoka Airport53 mi away
- IWK · Iwakuni Marine Corps Air Station57 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 UBJ from SSN?
The flight distance from Yamaguchi (UBJ) to Seoul East (SSN) is 337 miles (542 km, 293 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UBJ to SSN?
A nonstop flight takes about 1h 21m 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 cheapest way to fly from UBJ to SSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UBJ–SSN that never appear on search engines, with no booking fees.