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DSO to USM: distance & flight time
Hamhung (Sondok Airport) → Ko Samui (Samui Airport)
2,682 mi
4,316 km · 2,331 nm
5h 44m
estimated nonstop flight time
-2h
time difference · heading southwest
See live DSO→USM fares Phone-only fares on this route — call free
Flight time details
2,682 miles nonstop takes roughly 5h 44m 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
- DSO — Sondok Airport · Hamhung, North 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 DSO
- WOS · Wonsan Kalma International Airport40 mi away
- FNJ · Pyongyang Sunan International Airport103 mi away
- YNY · Yangyang International Airport133 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 DSO from USM?
The flight distance from Hamhung (DSO) to Ko Samui (USM) is 2,682 miles (4,316 km, 2,331 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DSO to USM?
A nonstop flight takes about 5h 44m 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 Hamhung and Ko Samui?
Ko Samui is 2 hours behind Hamhung.
What is the cheapest way to fly from DSO to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DSO–USM that never appear on search engines, with no booking fees.