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LAS to USM: distance & flight time
Las Vegas (McCarran International Airport) → Ko Samui (Samui Airport)
8,540 mi
13,744 km · 7,421 nm
17h 13m
estimated nonstop flight time
+14h
time difference · heading northwest
See live LAS→USM fares Phone-only fares on this route — call free
Flight time details
8,540 miles nonstop takes roughly 17h 13m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- LAS — McCarran International Airport · Las Vegas, 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 LAS
- HSH · Henderson Executive Airport7 mi away
- VGT · North Las Vegas Airport9 mi away
- LSV · Nellis Air Force Base13 mi away
- INS · Creech Air Force Base45 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 LAS from USM?
The flight distance from Las Vegas (LAS) to Ko Samui (USM) is 8,540 miles (13,744 km, 7,421 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LAS to USM?
A nonstop flight takes about 17h 13m 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 Las Vegas and Ko Samui?
Ko Samui is 14 hours ahead of Las Vegas.
What is the cheapest way to fly from LAS to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LAS–USM that never appear on search engines, with no booking fees.