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SME to USM: distance & flight time
Somerset (Lake Cumberland Regional Airport) → Ko Samui (Samui Airport)
9,203 mi
14,810 km · 7,997 nm
18h 31m
estimated nonstop flight time
+11h
time difference · heading north
See live SME→USM fares Phone-only fares on this route — call free
Flight time details
9,203 miles nonstop takes roughly 18h 31m 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
- SME — Lake Cumberland Regional Airport · Somerset, 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 SME
- LOZ · London-Corbin Airport/Magee Field29 mi away
- LEX · Blue Grass Airport68 mi away
- GLW · Glasgow Municipal Airport74 mi away
- FFT · Capital City Airport80 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 SME from USM?
The flight distance from Somerset (SME) to Ko Samui (USM) is 9,203 miles (14,810 km, 7,997 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SME to USM?
A nonstop flight takes about 18h 31m 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 Somerset and Ko Samui?
Ko Samui is 11 hours ahead of Somerset.
What is the cheapest way to fly from SME to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SME–USM that never appear on search engines, with no booking fees.