Saint Louis Regional (KALN), Illinois
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
St Louis Regional Airport, identified as KALN, sits in Alton, Illinois roughly 20 nautical miles from the St Louis metro area. The field is towered and operates two paved runways, including an 8,099-foot primary strip capable of handling a wide range of business jet traffic. Customs is not available onsite; the nearest customs-equipped facility is St Louis Lambert International (KSTL), about 17 nautical miles away. Annual operations at KALN reached 4,513 in 2025 per FAA TFMSC data, with business aviation accounting for the large majority of that traffic.
Runways
Saint Louis Regional has two paved runways. The longest, 11/29, is 8,099 ft long and 150 ft wide, with an asphalt surface.
Runway geometry from published threshold coordinates. Not for navigation.
Runways are listed longest first.
Source: FAA Form 5010.
Fuel and airfield services
Saint Louis Regional has Jet A and 100LL available on the field. Fueling is available from 7am to 10pm, daily, and the airport has an operating control tower.
Source: FAA Form 5010 / NASR.
Customs
Saint Louis Regional does not clear customs. The nearest port of entry is Saint Louis Lambert International (KSTL), 17 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Saint Louis Regional recorded 3,536 business aviation movements in 2025. Traffic peaks in May. Business aviation traffic at KALN builds through spring, peaking in May before settling into a steadier pattern for the remainder of the year.
Business jet movements, FAA TFMSC count. Peak month May, 360 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Saint Louis Regional averages 11.4 days above 90°F in July and 24.4 freeze days in January. July is the warmest month, with average highs of 87.3°F, and January the coldest, at 39.0°F.
Weather station is 5.0 NM from the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Saint Louis Regional has published operating constraints in four categories: access, runway notes, environmental and pavement strength.
Runway 11/29 is not available for Part 121 or Part 380 scheduled passenger operations with more than 9 passenger seats, or non-scheduled passenger operations with more than 30 passenger seats. Unscheduled air carrier operations exceeding 30 passenger seats require a prior permission request submitted 90 days in advance; contact the airport manager.
Runway 17/35 is not available for Part 121 or Part 380 scheduled passenger operations with more than 9 passenger seats, or non-scheduled passenger operations with more than 30 passenger seats. Unscheduled air carrier operations exceeding 30 passenger seats require a prior permission request submitted 90 days in advance; contact the airport manager.
The approach ends of runways 11 and 17 are closely aligned. Verify the correct compass heading prior to departure.
Index B firefighting equipment is available with a 30-minute prior permission request.
The MALSR on runway 29 and the REIL on runway 11 are activated via CTAF. When the airport traffic control tower is closed, the PAPI on runways 11, 17, and 35, the HIRL on runway 11/29, and the MIRL on runway 17/35 are preset to low intensity; use CTAF to increase intensity and activate the lights.
Migratory bird activity occurs in the vicinity of the airport from September through April.
Wildlife is present on and in the vicinity of the airport.
PCR VALUE: 440/F/D/X/T
PCR VALUE: 180/F/D/X/T
Source: FAA Chart Supplement.
Nearby airfields
Saint Louis Regional has five airfields within 24 NM. The closest is Saint Louis Lambert International (KSTL), 17.37 NM southwest.
Part of the St. Louis area.
Source: Skystar calculation from official coordinates.
Skystar at KALN
We arrange catering, fuel and trip support here. Supplier prices reach you unchanged; our coordination fee sits on its own line.
The same order, priced two ways.
$2,400.00 catering order at KALN.
Unchanged.
What the kitchen invoices us is what your quote reads.
One line, fixed.
It does not move with the size of the order.
At cost.
Passed on at the exact amount the processor took.
Market practice figures are industry averages, not a specific competitor.
Frequently asked questions
What runways are available at KALN?
St Louis Regional Airport (KALN) has two paved asphalt runways. Runway 11/29 is the longer of the two at 8,099 feet by 150 feet wide. Runway 17/35 measures 6,500 feet by 100 feet wide. Both surfaces support jet traffic, and the airport is towered with an attendance schedule of 0700-2200 daily. Pilots should note that the approach ends of runways 11 and 17 are closely aligned, so verifying compass heading before departure is advised.
Is fuel available at St Louis Regional Airport?
St Louis Regional Airport, KALN, offers both 100LL and Jet A fuel. The field is attended daily from 0700 to 2200 local time. As a towered airport with substantial business aviation traffic, fuel service supports a range of piston and turbine aircraft. Dispatchers planning stops at KALN can expect fuel availability during the posted attendance hours rather than around-the-clock service.
Are there restrictions on scheduled passenger operations at KALN?
Yes, both runways at St Louis Regional Airport (KALN) carry the same restriction. Runway 11/29 and runway 17/35 are not available for Part 121 or Part 380 scheduled passenger operations carrying more than 9 passenger seats, nor for non-scheduled passenger operations exceeding 30 passenger seats. Unscheduled air carrier operations larger than 30 passenger seats require a 90-day prior permission request through the airport manager. This applies uniformly across both runway complexes at KALN.
Is customs available at KALN?
St Louis Regional Airport does not have onsite customs processing. The nearest customs-equipped airport is St Louis Lambert International, listed as KSTL, located approximately 17.37 nautical miles from KALN on a bearing of 241 degrees. Flights requiring customs clearance arriving in the area typically route through Lambert rather than clearing directly at St Louis Regional. Dispatchers should plan customs arrangements accordingly when routing through this part of the St Louis metro area.
What wildlife hazards should pilots be aware of at KALN?
St Louis Regional Airport reports wildlife activity on and in the vicinity of the airfield as an ongoing general concern. In addition, migratory bird activity is specifically noted in the vicinity of the airport from September through April. Crews operating at KALN during these months should factor bird activity into approach and departure planning. These conditions are reported as standing remarks for the field rather than isolated incidents.