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OKC to USM: distance & flight time
Oklahoma City (Will Rogers World Airport) → Ko Samui (Samui Airport)
9,125 mi
14,685 km · 7,929 nm
18h 21m
estimated nonstop flight time
+12h
time difference · heading northwest
See live OKC→USM fares Phone-only fares on this route — call free
Flight time details
9,125 miles nonstop takes roughly 18h 21m 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
- OKC — Will Rogers World Airport · Oklahoma City, 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 OKC
- PWA · Wiley Post Airport10 mi away
- TIK · Tinker Air Force Base12 mi away
- SWO · Stillwater Regional Airport60 mi away
- CUH · Cushing Municipal 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 OKC from USM?
The flight distance from Oklahoma City (OKC) to Ko Samui (USM) is 9,125 miles (14,685 km, 7,929 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OKC to USM?
A nonstop flight takes about 18h 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 time difference between Oklahoma City and Ko Samui?
Ko Samui is 12 hours ahead of Oklahoma City.
What is the cheapest way to fly from OKC to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OKC–USM that never appear on search engines, with no booking fees.