The airport has two asphalt runways. Runway 18/35 is 3751 x 100 ft (1143 x 30 m), and runway 9/27 is 3001 x 75 ft (915 x 23 m). The airport has a number of hangars and storage facilities for its based aircraft. In 2019, a tornado destroyed some of these facilities and the aircraft stored inside them.

The fixed-base operator at the airport offers services including self-serve fuel, a pilots lounge, and a courtesy car.

In 2021, the Illinois Department of Transportation awarded Vandalia Airport $300,000 for pavement maintenance as part of its Airport Improvement Program.

For the 12-month period ending March 31, 2020, the airport has 25 aircraft operations per day, or about 9,000 per year. 99% of air traffic was general aviation and <1% air taxi. For the same time period, there are 13 aircraft based on the field: 12 single-engine and 1 multi-engine.

https://en.wikipedia.org/wiki/Vandalia_Municipal_Airport