# St Louis Regional Airport (ALN / KALN)

**St Louis Regional Airport** (IATA: ALN, ICAO: KALN) is a medium airport in Alton/St Louis, Illinois, United States. It opened in Apr 1940. It has 2 runways; the longest is 8,099 ft (2,469 m).

Web page: https://dromopedia.com/airports/kaln

## At a glance

- IATA / ICAO: ALN / KALN
- FAA: ALN
- Type: Medium airport
- Serves: Alton/St Louis, Illinois, United States
- Opened: Apr 1940
- Elevation: 544 ft / 166 m
- Coordinates: 38.8903, -90.0460
- Runways: 2
- Longest runway: 8,099 ft / 2,469 m
- Instrument procedures: 5 approaches, 4 departures, 2 arrivals
- Time zone: UTC-6/-5 · America/Chicago
- Website: http://www.stlouisregional.com/
- Wikipedia: https://en.wikipedia.org/wiki/St._Louis_Regional_Airport (7 languages)
- Wikidata: https://www.wikidata.org/wiki/Q7589682
- Weather station: KALN
- Ident: KALN

## Timeline

- Apr 1940: St Louis Regional Airport opens.

## Runways

| Ident | Length | Width | Surface | True headings | Lighted |
| --- | --- | --- | --- | --- | --- |
| 11/29 | 8,099 ft / 2,469 m | 150 ft / 46 m | Asphalt | 113° / 293° | yes |
| 17/35 | 6,500 ft / 1,981 m | 100 ft / 31 m | Asphalt | 173° / 353° | yes |

- FAA airport diagram: https://aeronav.faa.gov/d-tpp/2611/05178AD.PDF

## Rankings

Ranked among 48,075 open airports; = marks a shared place.

| Measure | Value | World | Region | Country |
| --- | --- | --- | --- | --- |
| Longest runway | 8,099 ft / 2,469 m | #2,638 of 29,858 | #524 in North America | #388 in US |
| Elevation | 544 ft / 166 m | #26,368 of 43,403 | #12,646 in North America | #10,558 in US |
| Age | Opened 1940 | =1,114 of 15,079 | =366 in North America | =338 in US |
| Runways | 2 | =715 of 29,978 | =435 in North America | =391 in US |

## Radio frequencies

| Type | Description | MHz |
| --- | --- | --- |
| A/D | APP/DEP | 124.200 |
| ATIS | ATIS | 128.000 |
| AWOS | AWOS 3 | 128.000 |
| CLD | CLNC DEL | 120.200 |
| CTAF | CTAF | 126.000 |
| GND | GND | 120.200 |
| RDO | RDO | 122.050 |
| TWR | REGIONAL TWR | 126.000 |
| UNIC | UNICOM | 122.950 |

## Nearby airports

- [STL](https://dromopedia.com/airports/kstl.md) St. Louis Lambert International Airport · 20 mi / 32 km
- [BLV](https://dromopedia.com/airports/kblv.md) Scott AFB/Midamerica Airport · 26 mi / 43 km
- [SUS](https://dromopedia.com/airports/ksus.md) Spirit of St Louis Airport · 36 mi / 58 km
- [SPI](https://dromopedia.com/airports/kspi.md) Abraham Lincoln Capital Airport · 69 mi / 111 km
- [MDH](https://dromopedia.com/airports/kmdh.md) Southern Illinois Airport · 88 mi / 142 km
- [DEC](https://dromopedia.com/airports/kdec.md) Decatur Airport · 91 mi / 146 km

## Sources

- [FAA NASR](https://www.faa.gov/air_traffic/flight_info/aeronav/aero_data/NASR_Subscription/): US airport data: FAA National Airspace System Resources (Public Domain (US Government))
- [NOAA Aviation Weather Center](https://aviationweather.gov/data/api/): Weather data: NOAA Aviation Weather Center (Public Domain (US Government))
- [OurAirports](https://ourairports.com/data/): Airport data from OurAirports (Public Domain)
- [Wikidata](https://www.wikidata.org): Structured data from Wikidata (CC0 1.0)
- [timezone-boundary-builder](https://github.com/evansiroky/timezone-boundary-builder): Time zone boundaries © OpenStreetMap contributors, timezone-boundary-builder (ODbL 1.0)
- Every figure with its source: https://dromopedia.com/airports/kaln/data