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IAH to UTH: distance & flight time
Houston (George Bush Intercontinental Houston Airport) → Udon Thani (Udon Thani Airport)
8,948 mi
14,401 km · 7,776 nm
18h 1m
estimated nonstop flight time
+12h
time difference · heading northwest
See live IAH→UTH fares Phone-only fares on this route — call free
Flight time details
8,948 miles nonstop takes roughly 18h 1m 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
- IAH — George Bush Intercontinental Houston Airport · Houston, 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 IAH
- DWH · David Wayne Hooks Memorial Airport14 mi away
- IWS · West Houston Airport23 mi away
- AAP · Andrau Airpark23 mi away
- HOU · William P Hobby Airport24 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 IAH from UTH?
The flight distance from Houston (IAH) to Udon Thani (UTH) is 8,948 miles (14,401 km, 7,776 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAH to UTH?
A nonstop flight takes about 18h 1m 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 Houston and Udon Thani?
Udon Thani is 12 hours ahead of Houston.
What is the cheapest way to fly from IAH to UTH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAH–UTH that never appear on search engines, with no booking fees.