Need help booking?
Unpublished phone-only deals available
UTH to ICN: distance & flight time
Udon Thani (Udon Thani Airport) → Seoul (Incheon International Airport)
1,996 mi
3,213 km · 1,735 nm
4h 23m
estimated nonstop flight time
+2h
time difference · heading northeast
See live UTH→ICN fares Phone-only fares on this route — call free
Flight time details
1,996 miles nonstop takes roughly 4h 23m 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
- UTH — Udon Thani Airport · Udon Thani, Thailand
- ICN — Incheon International Airport · Seoul, 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 UTH
- VTE · Wattay International Airport44 mi away
- KKC · Khon Kaen Airport64 mi away
- LOE · Loei Airport70 mi away
- SNO · Sakon Nakhon Airport89 mi away
Near ICN
- GMP · Gimpo International Airport20 mi away
- SWU · Suwon Airport34 mi away
- SSN · Seoul Air Base (K-16)36 mi away
- OSN · Osan Air Base41 mi away
Frequently asked questions
How far is UTH from ICN?
The flight distance from Udon Thani (UTH) to Seoul (ICN) is 1,996 miles (3,213 km, 1,735 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UTH to ICN?
A nonstop flight takes about 4h 23m 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 Udon Thani and Seoul?
Seoul is 2 hours ahead of Udon Thani.
What is the cheapest way to fly from UTH to ICN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UTH–ICN that never appear on search engines, with no booking fees.