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URT to USN: distance & flight time
Surat Thani (Surat Thani Airport) → Ulsan (Ulsan Airport)
2,637 mi
4,245 km · 2,292 nm
5h 38m
estimated nonstop flight time
+2h
time difference · heading northeast
See live URT→USN fares Phone-only fares on this route — call free
Flight time details
2,637 miles nonstop takes roughly 5h 38m 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
- URT — Surat Thani Airport · Surat Thani, Thailand
- USN — Ulsan Airport · Ulsan, 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 URT
- UNN · Ranong Airport58 mi away
- USM · Samui Airport69 mi away
- NST · Nakhon Si Thammarat Airport69 mi away
- KBV · Krabi Airport72 mi away
Near USN
- KPO · Pohang Airport (G-815/K-3)28 mi away
- PUS · Gimhae International Airport37 mi away
- TAE · Daegu Airport44 mi away
- CHF · Jinhae Airbase/Airport (G-813/K-10)48 mi away
Frequently asked questions
How far is URT from USN?
The flight distance from Surat Thani (URT) to Ulsan (USN) is 2,637 miles (4,245 km, 2,292 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from URT to USN?
A nonstop flight takes about 5h 38m 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 Surat Thani and Ulsan?
Ulsan is 2 hours ahead of Surat Thani.
What is the cheapest way to fly from URT to USN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on URT–USN that never appear on search engines, with no booking fees.