Frequently Asked Questions

On average, how many flights depart from Alton(ALN) each day?

On average, Alton(ALN) has 2 departure flight(s) each day.

What is the earliest departure flight from Alton(ALN)?

The earliest flight is O23330, which departs for Chicago at 08:20. If you wish to take this flight, we recommend you stay at a hotel near the airport on the night before departure.

What is the latest departure flight from Alton(ALN)?

The latest flight is O23540, which departs for Chicago at 15:20. If you wish to take this flight, please check the operating time for the latest airport transfer, train, or any other transportation you may take to get to the airport.