The flight distance from Helena Regional Airport (HLN) in Helena, United States to George Bush Intcntl/Houston Airport (IAH) in Houston, United States is 2,341 kilometers (1,455 miles / 1,264 nautical miles). The estimated flight time for this route is approximately 4h, flying southeast at a heading of 136°.

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 20:54 in Helena, it's 21:54 in Houston.

There is a significant elevation difference of 3,782 feet between the two airports. George Bush Intcntl/Houston Airport sits lower than Helena Regional Airport.

The return flight from Houston (IAH) to Helena (HLN) follows a heading of 327° (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 Helena Regional Airport (HLN) and George Bush Intcntl/Houston Airport (IAH) detail pages, or use our flight duration calculator to compare other routes.