Airport Comparison
| ALN | ORD | |
|---|---|---|
| Airport Name | St Louis Regional Airport | Chicago O'Hare International Airport |
| IATA Code | ALN | ORD |
| ICAO Code | KALN | KORD |
| City | Alton/St Louis | Chicago |
| Country | United States | United States |
| Timezone | America/Chicago | America/Chicago |
| Elevation | 544 ft | 680 ft |
| Coordinates | 38.890000, -90.050000 | 41.980000, -87.910000 |
Alton/St Louis (ALN) to Chicago (ORD) Flight Distance
The flight distance from St Louis Regional Airport (ALN) in Alton/St Louis, United States to Chicago O'Hare International Airport (ORD) in Chicago, United States is 388 kilometers (241 miles / 210 nautical miles). The estimated flight time for this route is approximately 1h, flying north northeast at a heading of 27°.
This is a short regional route, typically operated by turboprop or small regional jet aircraft. Flight time is minimal and passengers can expect a quick, efficient journey.
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 05:18 in Alton/St Louis, it's 05:18 in Chicago.
The return flight from Chicago (ORD) to Alton/St Louis (ALN) follows a heading of 208° (south southwest). 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 Chicago O'Hare International Airport (ORD) detail pages, or use our flight duration calculator to compare other routes.