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SSN to UBJ: distance & flight time
Seoul East (Seoul Air Base (K-16)) → Yamaguchi (Yamaguchi Ube Airport)
337 mi
542 km · 293 nm
1h 21m
estimated nonstop flight time
Same time
time difference · heading southeast
See live SSN→UBJ fares Phone-only fares on this route — call free
Flight time details
337 miles nonstop takes roughly 1h 21m gate to gate, flying southeast. 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
- SSN — Seoul Air Base (K-16) · Seoul East, South Korea
- UBJ — Yamaguchi Ube Airport · Yamaguchi, Japan
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 UBJ
- KKJ · Kitakyūshū Airport15 mi away
- OIT · Oita Airport41 mi away
- FUK · Fukuoka Airport53 mi away
- IWK · Iwakuni Marine Corps Air Station57 mi away
Frequently asked questions
How far is SSN from UBJ?
The flight distance from Seoul East (SSN) to Yamaguchi (UBJ) is 337 miles (542 km, 293 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SSN to UBJ?
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.
Are there nonstop flights from SSN to UBJ?
Nonstop service on SSN–UBJ depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 21m nonstop estimate.
What is the cheapest way to fly from SSN to UBJ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SSN–UBJ that never appear on search engines, with no booking fees.
Why are some SSN to UBJ fares phone-only?
Consolidator contracts let us sell certain SSN–UBJ tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.