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UTH to GMP: distance & flight time
Udon Thani (Udon Thani Airport) → Seoul (Gimpo International Airport)
2,015 mi
3,243 km · 1,751 nm
4h 25m
estimated nonstop flight time
+2h
time difference · heading northeast
See live UTH→GMP fares Phone-only fares on this route — call free
Flight time details
2,015 miles nonstop takes roughly 4h 25m 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
- GMP — Gimpo 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 GMP
- ICN · Incheon International Airport20 mi away
- SSN · Seoul Air Base (K-16)19 mi away
- SWU · Suwon Airport25 mi away
- OSN · Osan Air Base35 mi away
Frequently asked questions
How far is UTH from GMP?
The flight distance from Udon Thani (UTH) to Seoul (GMP) is 2,015 miles (3,243 km, 1,751 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UTH to GMP?
A nonstop flight takes about 4h 25m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from UTH to GMP?
Nonstop service on UTH–GMP depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 4h 25m nonstop estimate.
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 GMP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UTH–GMP that never appear on search engines, with no booking fees.
Why are some UTH to GMP fares phone-only?
Consolidator contracts let us sell certain UTH–GMP tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.