Reference data only — not for flight planning or navigation. Verify with official sources (AIP, NOTAMs, ATC). Full disclaimer
St Louis Regional Airport (KALN/ALN) — Alton/St Louis, United States
St Louis Regional Airport (KALN/ALN) serves Alton/St Louis, United States. This is a mid-sized airport with 2 runways (11/29, 17/35). Field elevation is 544 ft AMSL. Data on this page is maintained by the aviation community — contribute to keep it accurate.
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83%
Data Complete
43 of 52 points
Missing: Contacts
Section Breakdown
Basic Info
7/7
Runways
4/4
Frequencies
4/4
Operations
2/2
Fuel
1/1
Contacts
0/2
Additional Info
3/10
Observed Activity
· Jul 27
29 aircraft observed within 6 NM · busiest hour 13:00Z
2026-07-182026-07-27
Distinct ADS-B aircraft seen within 6 NM below 10,000 ft AGL per UTC day · community-feed coverage varies · not official movement totals
Data last updated:
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Basic Airport Information
- ICAO: KALN
- Name: St Louis Regional Airport
- Type: medium_airport
- Category: Domestic
- Latitude: 38.890301
- Longitude: -90.045998
- Elevation: 544 ft
- Country: United States
- Municipality: Alton/St Louis
- IATA Code: ALN
- FAA Code: N/A
- FIR: N/A
- Timezone: America/Chicago
- Distance from City: N/A km
- VFR: Yes
- IFR: No
Runways
Runway 11/29
- Designation: 11/29
- Dimensions: 2469x46m
- Surface: ASP
- PCN: N/A
- Lighting: Lighted
- NAVAIDs: N/A
- Approach Types: N/A
- Remarks: N/A
Runway 17/35
- Designation: 17/35
- Dimensions: 1981x30m
- Surface: ASP
- PCN: N/A
- Lighting: Lighted
- NAVAIDs: N/A
- Approach Types: N/A
- Remarks: N/A
Frequencies
- Tower: 126.000, 126.000 MHz
- Ground: 120.200 MHz
- Operations: 122.050 MHz
- Traffic/Approach: N/A
- ATIS: 128.000, 128.000 MHz
Operation Hours
Monday
12:00
–
03:00
Tuesday
12:00
–
03:00
Wednesday
12:00
–
03:00
Thursday
12:00
–
03:00
Friday
12:00
–
03:00
Saturday
12:00
–
03:00
Sunday
12:00
–
03:00
- Extra Hours On Request: No
- Remarks: N/A
Contacts
- AIS Tel: N/A
- ARO Tel: N/A
- MET Tel: N/A
- Admin Tel: +1 618-259-2531
- Health Tel: N/A
- Police Tel: N/A
- Authorities Tel: N/A
- Website: N/A
- Remarks: N/A
Slots / PPR
- Slot Required: No
- PPR Required: No
- PPR Contact: N/A
- Remarks: N/A
Fuel Information
- Fuel Type: 100LL
- Price/L: N/A
- Last Updated: N/A
- Remarks: N/A
- Fuel Type: Jet A
- Price/L: N/A
- Last Updated: N/A
- Remarks: N/A
Immigration
- Port of Entry: No
- GENDEC Required: No
- GAR Required: No
- Remarks: N/A
Airport Services
No services listed for this airport yet.
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United States Permit Requirements
Fast
Landing: 1d
- Overflight Permit: No
- Landing Permit: Conditional
- Overflight Lead Time: N/A
- Landing Lead Time: 60 minutes minimum (eAPIS manifest before departure); recommend 24-48 hours for CBP port notification
Private / GA Operations:
No permits required for private non-revenue flights. eAPIS manifest mandatory for all international arrivals/departures.
Nearby Airports
Airport History
Discover the key milestones and historical events that shaped St Louis Regional Airport. Our community-powered timeline traces this airport's journey from its origins to the present day.
Explore HistoryFrequently Asked Questions
- What are the operating hours of KALN?
- St Louis Regional Airport operates from 12:00 to 03:00.
- What is the tower frequency at KALN?
- The tower frequency at St Louis Regional Airport is 126, 126 MHz.
- What fuel is available at KALN?
- St Louis Regional Airport offers 100LL, Jet A.
- Does KALN require landing permits?
- Yes, landing permits are required for St Louis Regional Airport (United States).
- Where is KALN located?
- St Louis Regional Airport (KALN) is located in Alton/St Louis, United States.
- What is the IATA code for KALN?
- The IATA code for St Louis Regional Airport is ALN.
- How long is the runway at KALN?
- The main runway at St Louis Regional Airport (11/29) measures 2469x46m.