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HLN to UTH: distance & flight time
Helena (Helena Regional Airport) → Udon Thani (Udon Thani Airport)
7,514 mi
12,092 km · 6,529 nm
15h 12m
estimated nonstop flight time
+13h
time difference · heading northwest
See live HLN→UTH fares Phone-only fares on this route — call free
Flight time details
7,514 miles nonstop takes roughly 15h 12m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- HLN — Helena Regional Airport · Helena, 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 HLN
- BTM · Bert Mooney Airport51 mi away
- GTF · Great Falls International Airport67 mi away
- BZN · Gallatin Field70 mi away
- LVM · Mission Field97 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 HLN from UTH?
The flight distance from Helena (HLN) to Udon Thani (UTH) is 7,514 miles (12,092 km, 6,529 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HLN to UTH?
A nonstop flight takes about 15h 12m 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 Helena and Udon Thani?
Udon Thani is 13 hours ahead of Helena.
What is the cheapest way to fly from HLN to UTH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HLN–UTH that never appear on search engines, with no booking fees.