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CPR to USM: distance & flight time
Casper (Casper-Natrona County International Airport) → Ko Samui (Samui Airport)
8,445 mi
13,592 km · 7,339 nm
17h 2m
estimated nonstop flight time
+13h
time difference · heading northwest
See live CPR→USM fares Phone-only fares on this route — call free
Flight time details
8,445 miles nonstop takes roughly 17h 2m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- CPR — Casper-Natrona County International Airport · Casper, 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 CPR
- RWL · Rawlins Municipal Airport/Harvey Field85 mi away
- RIW · Riverton Regional Airport101 mi away
- SAA · Shively Field103 mi away
- WRL · Worland Municipal Airport104 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 CPR from USM?
The flight distance from Casper (CPR) to Ko Samui (USM) is 8,445 miles (13,592 km, 7,339 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CPR to USM?
A nonstop flight takes about 17h 2m 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 Casper and Ko Samui?
Ko Samui is 13 hours ahead of Casper.
What is the cheapest way to fly from CPR to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CPR–USM that never appear on search engines, with no booking fees.