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KAG to USM: distance & flight time
Kangnung (Gangneung Airport (K-18)) → Ko Samui (Samui Airport)
2,649 mi
4,264 km · 2,302 nm
5h 40m
estimated nonstop flight time
-2h
time difference · heading southwest
See live KAG→USM fares Phone-only fares on this route — call free
Flight time details
2,649 miles nonstop takes roughly 5h 40m 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
- KAG — Gangneung Airport (K-18) · Kangnung, 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 KAG
- YNY · Yangyang International Airport26 mi away
- WJU · Wonju/Hoengseong Air Base (K-38/K-46)58 mi away
- YEC · Yecheon Airbase84 mi away
- ICN · Incheon International Airport138 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 KAG from USM?
The flight distance from Kangnung (KAG) to Ko Samui (USM) is 2,649 miles (4,264 km, 2,302 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KAG to USM?
A nonstop flight takes about 5h 40m 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 Kangnung and Ko Samui?
Ko Samui is 2 hours behind Kangnung.
What is the cheapest way to fly from KAG to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KAG–USM that never appear on search engines, with no booking fees.