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IAH to GTF: distance & flight time
Houston (George Bush Intercontinental Houston Airport) → Great Falls (Great Falls International Airport)
1,480 mi
2,381 km · 1,286 nm
3h 41m
estimated nonstop flight time
-1h
time difference · heading northwest
See live IAH→GTF fares Phone-only fares on this route — call free
Flight time details
1,480 miles nonstop takes roughly 3h 41m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- IAH — George Bush Intercontinental Houston Airport · Houston, United States
- GTF — Great Falls International Airport · Great Falls, 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 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 GTF
- HLN · Helena Regional Airport67 mi away
- CTB · Cut Bank International Airport91 mi away
- LWT · Lewistown Municipal Airport94 mi away
- HVR · Havre City County Airport104 mi away
Frequently asked questions
How far is IAH from GTF?
The flight distance from Houston (IAH) to Great Falls (GTF) is 1,480 miles (2,381 km, 1,286 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAH to GTF?
A nonstop flight takes about 3h 41m 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 Great Falls?
Great Falls is 1 hour behind Houston.
What is the cheapest way to fly from IAH to GTF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAH–GTF that never appear on search engines, with no booking fees.