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SWU to USM: distance & flight time
Suwon (Suwon Airport) → Ko Samui (Samui Airport)
2,546 mi
4,097 km · 2,212 nm
5h 28m
estimated nonstop flight time
-2h
time difference · heading southwest
See live SWU→USM fares Phone-only fares on this route — call free
Flight time details
2,546 miles nonstop takes roughly 5h 28m 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
- SWU — Suwon Airport · Suwon, 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 SWU
- ICN · Incheon International Airport34 mi away
- OSN · Osan Air Base10 mi away
- SSN · Seoul Air Base (K-16)15 mi away
- GMP · Gimpo International Airport25 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 SWU from USM?
The flight distance from Suwon (SWU) to Ko Samui (USM) is 2,546 miles (4,097 km, 2,212 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SWU to USM?
A nonstop flight takes about 5h 28m 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 Suwon and Ko Samui?
Ko Samui is 2 hours behind Suwon.
What is the cheapest way to fly from SWU to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SWU–USM that never appear on search engines, with no booking fees.