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HLN to IAH: distance & flight time
Helena (Helena Regional Airport) → Houston (George Bush Intercontinental Houston Airport)
1,454 mi
2,340 km · 1,264 nm
3h 38m
estimated nonstop flight time
+1h
time difference · heading southeast
See live HLN→IAH fares Phone-only fares on this route — call free
Flight time details
1,454 miles nonstop takes roughly 3h 38m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- HLN — Helena Regional Airport · Helena, United States
- IAH — George Bush Intercontinental Houston Airport · Houston, United States
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 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
Frequently asked questions
How far is HLN from IAH?
The flight distance from Helena (HLN) to Houston (IAH) is 1,454 miles (2,340 km, 1,264 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HLN to IAH?
A nonstop flight takes about 3h 38m 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 Houston?
Houston is 1 hour ahead of Helena.
What is the cheapest way to fly from HLN to IAH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HLN–IAH that never appear on search engines, with no booking fees.