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USN to UTH: distance & flight time
Ulsan (Ulsan Airport) → Udon Thani (Udon Thani Airport)
2,057 mi
3,310 km · 1,787 nm
4h 30m
estimated nonstop flight time
-2h
time difference · heading southwest
See live USN→UTH fares Phone-only fares on this route — call free
Flight time details
2,057 miles nonstop takes roughly 4h 30m 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
- USN — Ulsan Airport · Ulsan, South Korea
- UTH — Udon Thani Airport · Udon Thani, 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 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
Near UTH
- VTE · Wattay International Airport44 mi away
- KKC · Khon Kaen Airport64 mi away
- LOE · Loei Airport70 mi away
- SNO · Sakon Nakhon Airport89 mi away
Frequently asked questions
How far is USN from UTH?
The flight distance from Ulsan (USN) to Udon Thani (UTH) is 2,057 miles (3,310 km, 1,787 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to UTH?
A nonstop flight takes about 4h 30m 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 Ulsan and Udon Thani?
Udon Thani is 2 hours behind Ulsan.
What is the cheapest way to fly from USN to UTH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–UTH that never appear on search engines, with no booking fees.