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USM to KAG: distance & flight time
Ko Samui (Samui Airport) → Kangnung (Gangneung Airport (K-18))
2,649 mi
4,264 km · 2,302 nm
5h 40m
estimated nonstop flight time
+2h
time difference · heading northeast
See live USM→KAG fares Phone-only fares on this route — call free
Flight time details
2,649 miles nonstop takes roughly 5h 40m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- USM — Samui Airport · Ko Samui, Thailand
- KAG — Gangneung Airport (K-18) · Kangnung, South Korea
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 USM
- URT · Surat Thani Airport69 mi away
- NST · Nakhon Si Thammarat Airport70 mi away
- CJM · Chumphon Airport93 mi away
- UNN · Ranong Airport102 mi away
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
Frequently asked questions
How far is USM from KAG?
The flight distance from Ko Samui (USM) to Kangnung (KAG) 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 USM to KAG?
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 Ko Samui and Kangnung?
Kangnung is 2 hours ahead of Ko Samui.
What is the cheapest way to fly from USM to KAG?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–KAG that never appear on search engines, with no booking fees.