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PUS to USM: distance & flight time
Busan (Gimhae International Airport) → Ko Samui (Samui Airport)
2,538 mi
4,085 km · 2,206 nm
5h 27m
estimated nonstop flight time
-2h
time difference · heading southwest
See live PUS→USM fares Phone-only fares on this route — call free
Flight time details
2,538 miles nonstop takes roughly 5h 27m 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
- PUS — Gimhae International Airport · Busan, 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 PUS
- CHF · Jinhae Airbase/Airport (G-813/K-10)14 mi away
- USN · Ulsan Airport37 mi away
- HIN · Sacheon Air Base/Airport49 mi away
- TAE · Daegu Airport52 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 PUS from USM?
The flight distance from Busan (PUS) to Ko Samui (USM) is 2,538 miles (4,085 km, 2,206 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PUS to USM?
A nonstop flight takes about 5h 27m 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 Busan and Ko Samui?
Ko Samui is 2 hours behind Busan.
What is the cheapest way to fly from PUS to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PUS–USM that never appear on search engines, with no booking fees.