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OIT to USM: distance & flight time
Oita (Oita Airport) → Ko Samui (Samui Airport)
2,603 mi
4,189 km · 2,262 nm
5h 34m
estimated nonstop flight time
-2h
time difference · heading southwest
See live OIT→USM fares Phone-only fares on this route — call free
Flight time details
2,603 miles nonstop takes roughly 5h 34m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- OIT — Oita Airport · Oita, Japan
- USM — Samui Airport · Ko Samui, Thailand
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 OIT
- UBJ · Yamaguchi Ube Airport41 mi away
- KKJ · Kitakyūshū Airport48 mi away
- IWK · Iwakuni Marine Corps Air Station54 mi away
- MYJ · Matsuyama Airport60 mi away
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
Frequently asked questions
How far is OIT from USM?
The flight distance from Oita (OIT) to Ko Samui (USM) is 2,603 miles (4,189 km, 2,262 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OIT to USM?
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 Oita and Ko Samui?
Ko Samui is 2 hours behind Oita.
What is the cheapest way to fly from OIT to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OIT–USM that never appear on search engines, with no booking fees.