Airport Comparison
| ALN | IAH | |
|---|---|---|
| Airport Name | St Louis Regional Airport | George Bush Intcntl/Houston Airport |
| IATA Code | ALN | IAH |
| ICAO Code | KALN | KIAH |
| City | Alton/St Louis | Houston |
| Country | United States | United States |
| Timezone | America/Chicago | America/Chicago |
| Elevation | 544 ft | 96 ft |
| Coordinates | 38.890000, -90.050000 | 29.980000, -95.340000 |
Alton/St Louis (ALN) to Houston (IAH) Flight Distance
The flight distance from St Louis Regional Airport (ALN) in Alton/St Louis, United States to George Bush Intcntl/Houston Airport (IAH) in Houston, United States is 1,103 kilometers (685 miles / 595 nautical miles). The estimated flight time for this route is approximately 2h, flying south southwest at a heading of 208°.
This is a short-haul route typically served by narrow-body aircraft such as the Boeing 737 or Airbus A320 family. In-flight service is usually limited to drinks and light snacks.
This is a domestic route within United States. Both airports operate in the same country, which may simplify travel requirements and documentation.
Time zone information: When it's 06:45 in Alton/St Louis, it's 06:45 in Houston.
The return flight from Houston (IAH) to Alton/St Louis (ALN) follows a heading of 25° (north northeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.
For more information about these airports, visit the St Louis Regional Airport (ALN) and George Bush Intcntl/Houston Airport (IAH) detail pages, or use our flight duration calculator to compare other routes.