Need help booking?
Unpublished phone-only deals available
OSN to UTH: distance & flight time
Osan (Osan Air Base) → Udon Thani (Udon Thani Airport)
2,006 mi
3,229 km · 1,743 nm
4h 24m
estimated nonstop flight time
-2h
time difference · heading southwest
See live OSN→UTH fares Phone-only fares on this route — call free
Flight time details
2,006 miles nonstop takes roughly 4h 24m 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
- OSN — Osan Air Base · Osan, 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 OSN
- ICN · Incheon International Airport41 mi away
- SWU · Suwon Airport10 mi away
- SSN · Seoul Air Base (K-16)25 mi away
- GMP · Gimpo International Airport35 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 OSN from UTH?
The flight distance from Osan (OSN) to Udon Thani (UTH) is 2,006 miles (3,229 km, 1,743 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to UTH?
A nonstop flight takes about 4h 24m 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 Osan and Udon Thani?
Udon Thani is 2 hours behind Osan.
What is the cheapest way to fly from OSN to UTH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–UTH that never appear on search engines, with no booking fees.