KALN · ALN St Louis Regional Airport
Alton/St Louis, Illinois, United States
Not for navigation. Data: OurAirports (public domain), updated Oct 30, 2026.
Airport facts
- Ident
- KALN
- IATA
- ALN
- Type
- Medium airport
- Municipality
- Alton/St Louis
- Region
- Illinois
- Country
- United States
- Elevation
- 544 ft (166 m)
- Coordinates
- 38.8903° N 90.0460° W
38°53′25″N 90°02′46″W - Towered
- Yes
- Wikipedia
- St Louis Regional Airport
Runways
| Runway | Length × width | Surface | Lighted | Status |
|---|---|---|---|---|
| 11/29 | 8,099 × 150 ft | Asphalt | Yes | Open |
| 17/35 | 6,500 × 100 ft | Asphalt | Yes | Open |
Frequencies
| Type | Name | MHz |
|---|---|---|
| ATIS | ATIS | 128.000 |
| AWOS | AWOS 3 | 128.000 |
| CLD | CLNC DEL | 120.200 |
| GND | GND | 120.200 |
| TWR | REGIONAL TWR | 126.000 |
| UNIC | UNICOM | 122.950 |
| CTAF | CTAF | 126.000 |
| A/D | APP/DEP | 124.200 |
| RDO | RDO | 122.050 |