The flight distance from Great Falls International Airport (GTF) in Great Falls, United States to George Bush Intcntl/Houston Airport (IAH) in Houston, United States is 2,381 kilometers (1,480 miles / 1,286 nautical miles). The estimated flight time for this route is approximately 4h, flying southeast at a heading of 139°.

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

This is a domestic route within United States. Both airports operate in the same country, which may simplify travel requirements and documentation. Despite being a domestic route, there is a 1-hour time difference between the two cities.

Time zone information: When it's 09:38 in Great Falls, it's 10:38 in Houston.

There is a significant elevation difference of 3,584 feet between the two airports. George Bush Intcntl/Houston Airport sits lower than Great Falls International Airport.

The return flight from Houston (IAH) to Great Falls (GTF) follows a heading of 329° (north northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Great Falls International Airport (GTF) and George Bush Intcntl/Houston Airport (IAH) detail pages, or use our flight duration calculator to compare other routes.