St Louis Regional Airport — Alton/St Louis, United States
← Looking for a different airport? Search hereSearching for an airport code near Alton/St Louis? St Louis Regional Airport is identified as ALN (ICAO: KALN).
Distance & flight time from ALN
St Louis Regional Airport
St Louis Regional Airport sits at 544 feet above sea level in Alton, Illinois, across the Mississippi River from the much larger city of St. Louis, Missouri, its two runways belonging to a separate, smaller airport from the main St. Louis Lambert International across the river despite the shared name. Alton sits in southwestern Illinois, in the metro area that spans the Mississippi into Missouri. General aviation and corporate traffic dominate the schedule here, giving the Illinois side of the St. Louis area a closer alternative to the bigger airport across the river.
Runways at St Louis Regional Airport (ALN)
| Runway | Length | Width | Surface |
|---|---|---|---|
| 11/29 | 8099 ft (2469 m) | 150 ft (46 m) | ASP |
| 17/35 | 6500 ft (1981 m) | 100 ft (30 m) | ASP |
Radio frequencies for St Louis Regional Airport (ALN)
| Type | Description | Frequency |
|---|---|---|
| A/D | APP/DEP | 124.2 MHz |
| ATIS | ATIS | 128 MHz |
| AWOS | AWOS 3 | 128 MHz |
| CLD | CLNC DEL | 120.2 MHz |
| CTAF | CTAF | 126 MHz |
| GND | GND | 120.2 MHz |
| RDO | RDO | 122.05 MHz |
| TWR | REGIONAL TWR | 126 MHz |
| UNIC | UNICOM | 122.95 MHz |
Airports near St Louis Regional Airport (ALN)
- St. Louis Lambert International Airport (STL) — 32.2 km (20.0 mi)
- Scott AFB/Midamerica Airport (BLV) — 42.5 km (26.4 mi)
- Spirit of St Louis Airport (SUS) — 58.3 km (36.2 mi)
- Abraham Lincoln Capital Airport (SPI) — 110.7 km (68.8 mi)
- Southern Illinois Airport (MDH) — 141.7 km (88.0 mi)
- Decatur Airport (DEC) — 146.0 km (90.7 mi)
- Quincy Regional Airport Baldwin Field (UIN) — 153.1 km (95.1 mi)
- Veterans Airport of Southern Illinois (MWA) — 155.3 km (96.5 mi)
Because its name so closely echoes St. Louis Lambert International, pilots and travelers booking into this smaller Illinois field double-check the code ALN specifically, making sure a search for 'St Louis airport' has not accidentally pulled up the much larger Missouri gateway instead.
FAQ
What is the IATA code for St Louis Regional Airport?
The IATA code for St Louis Regional Airport is ALN.
What is the ICAO code for St Louis Regional Airport?
The ICAO code for St Louis Regional Airport is KALN. IATA codes are 3 letters used for baggage tags and booking; ICAO codes are 4 letters used by air traffic control and pilots.