Need help booking?
Unpublished phone-only deals available
SSN to USM: distance & flight time
Seoul East (Seoul Air Base (K-16)) → Ko Samui (Samui Airport)
2,560 mi
4,119 km · 2,224 nm
5h 29m
estimated nonstop flight time
-2h
time difference · heading southwest
See live SSN→USM fares Phone-only fares on this route — call free
Flight time details
2,560 miles nonstop takes roughly 5h 29m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- SSN — Seoul Air Base (K-16) · Seoul East, South Korea
- 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 SSN
- ICN · Incheon International Airport36 mi away
- SWU · Suwon Airport15 mi away
- GMP · Gimpo International Airport19 mi away
- OSN · Osan Air Base25 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 SSN from USM?
The flight distance from Seoul East (SSN) to Ko Samui (USM) is 2,560 miles (4,119 km, 2,224 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SSN to USM?
A nonstop flight takes about 5h 29m 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 Seoul East and Ko Samui?
Ko Samui is 2 hours behind Seoul East.
What is the cheapest way to fly from SSN to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SSN–USM that never appear on search engines, with no booking fees.