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GRK to UTH: distance & flight time
Killeen (Robert Gray Army Air Field Airport) → Udon Thani (Udon Thani Airport)
8,820 mi
14,194 km · 7,664 nm
17h 46m
estimated nonstop flight time
+12h
time difference · heading northwest
See live GRK→UTH fares Phone-only fares on this route — call free
Flight time details
8,820 miles nonstop takes roughly 17h 46m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- GRK — Robert Gray Army Air Field Airport · Killeen, United States
- 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 GRK
- HLR · Hood Army Air Field8 mi away
- AUS · Austin Bergstrom International Airport61 mi away
- TPL · Draughon Miller Central Texas Regional Airport26 mi away
- ACT · Waco Regional Airport52 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 GRK from UTH?
The flight distance from Killeen (GRK) to Udon Thani (UTH) is 8,820 miles (14,194 km, 7,664 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRK to UTH?
A nonstop flight takes about 17h 46m 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 Killeen and Udon Thani?
Udon Thani is 12 hours ahead of Killeen.
What is the cheapest way to fly from GRK to UTH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRK–UTH that never appear on search engines, with no booking fees.