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USM to UBJ: distance & flight time
Ko Samui (Samui Airport) → Yamaguchi (Yamaguchi Ube Airport)
2,598 mi
4,180 km · 2,257 nm
5h 34m
estimated nonstop flight time
+2h
time difference · heading northeast
See live USM→UBJ fares Phone-only fares on this route — call free
Flight time details
2,598 miles nonstop takes roughly 5h 34m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- USM — Samui Airport · Ko Samui, Thailand
- 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 USM
- URT · Surat Thani Airport69 mi away
- NST · Nakhon Si Thammarat Airport70 mi away
- CJM · Chumphon Airport93 mi away
- UNN · Ranong Airport102 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 USM from UBJ?
The flight distance from Ko Samui (USM) to Yamaguchi (UBJ) is 2,598 miles (4,180 km, 2,257 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USM to UBJ?
A nonstop flight takes about 5h 34m 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 Ko Samui and Yamaguchi?
Yamaguchi is 2 hours ahead of Ko Samui.
What is the cheapest way to fly from USM to UBJ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–UBJ that never appear on search engines, with no booking fees.