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YSM to USM: distance & flight time
Fort Smith (Fort Smith Airport) → Ko Samui (Samui Airport)
7,318 mi
11,777 km · 6,359 nm
14h 49m
estimated nonstop flight time
+13h
time difference · heading northwest
See live YSM→USM fares Phone-only fares on this route — call free
Flight time details
7,318 miles nonstop takes roughly 14h 49m 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
- YSM — Fort Smith Airport · Fort Smith, Canada
- 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 YSM
- YPY · Fort Chipewyan Airport92 mi away
- YFR · Fort Resolution Airport99 mi away
- YBE · Uranium City Airport125 mi away
- YHY · Hay River / Merlyn Carter Airport142 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 YSM from USM?
The flight distance from Fort Smith (YSM) to Ko Samui (USM) is 7,318 miles (11,777 km, 6,359 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YSM to USM?
A nonstop flight takes about 14h 49m 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 Fort Smith and Ko Samui?
Ko Samui is 13 hours ahead of Fort Smith.
What is the cheapest way to fly from YSM to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YSM–USM that never appear on search engines, with no booking fees.