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CHS to USM: distance & flight time
Charleston (Charleston Air Force Base-International Airport) → Ko Samui (Samui Airport)
9,504 mi
15,295 km · 8,259 nm
19h 6m
estimated nonstop flight time
+11h
time difference · heading north
See live CHS→USM fares Phone-only fares on this route — call free
Flight time details
9,504 miles nonstop takes roughly 19h 6m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time gain when reading arrival times on your ticket.
The two airports
- CHS — Charleston Air Force Base-International Airport · Charleston, 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 CHS
- BFT · Beaufort County Airport48 mi away
- GGE · Georgetown County Airport51 mi away
- HHH · Hilton Head Airport60 mi away
- OGB · Orangeburg Municipal Airport61 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 CHS from USM?
The flight distance from Charleston (CHS) to Ko Samui (USM) is 9,504 miles (15,295 km, 8,259 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CHS to USM?
A nonstop flight takes about 19h 6m 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 Charleston and Ko Samui?
Ko Samui is 11 hours ahead of Charleston.
What is the cheapest way to fly from CHS to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CHS–USM that never appear on search engines, with no booking fees.