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CSM to USM: distance & flight time
Clinton (Clinton Sherman Airport) → Ko Samui (Samui Airport)
9,090 mi
14,629 km · 7,899 nm
18h 17m
estimated nonstop flight time
+12h
time difference · heading northwest
See live CSM→USM fares Phone-only fares on this route — call free
Flight time details
9,090 miles nonstop takes roughly 18h 17m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- CSM — Clinton Sherman Airport · Clinton, United States
- 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 CSM
- HBR · Hobart Regional Airport26 mi away
- LTS · Altus Air Force Base47 mi away
- FSI · Henry Post Army Air Field (Fort Sill)66 mi away
- LAW · Lawton Fort Sill Regional Airport69 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 CSM from USM?
The flight distance from Clinton (CSM) to Ko Samui (USM) is 9,090 miles (14,629 km, 7,899 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CSM to USM?
A nonstop flight takes about 18h 17m 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 Clinton and Ko Samui?
Ko Samui is 12 hours ahead of Clinton.
What is the cheapest way to fly from CSM to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CSM–USM that never appear on search engines, with no booking fees.