St Louis Regional
ALN · KALN · Alton/St Louis, IL · Towered · Print kneeboard · Open on the map
FAA airport diagramView full size ↓ Nearby now
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-09-18 · night begins 07:31 PM
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:17 AM | 11:17Z |
| Sunrise | 06:44 AM | 11:44Z |
| Sunset | 07:04 PM | 00:04Z |
| Evening civil twilight Loggable night begins | 07:31 PM | 00:31Z |
Plan a flight from KALN
Past 24 hours category · wind · ceiling · visibility trends
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Density altitude today projected curve · departure window · takeoff roll
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: KALN METAR decoded
Advisories
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Pilot reports · Loading PIREPs…
Airspace hazards · Checking SIGMETs and G-AIRMETs…
Temporary flight restrictions · Checking for TFRs…
Runways
RWY 11LEFT traffic
- Heading
- 114° mag · 113° true
- Dimensions
- 8,099 × 150 ft
- TPA
- 1,500 ft MSL (≈1,000 AGL) · standard
- Surface
- Asphalt
- Lights
- 4-light PAPI (right) (3°)
- CTAF
- 126.0
More details — RWY 11
- Threshold elev
- 538 ft
- Markings
- precision
- Approach obstacle
- Tree, 35 ft, 1,275 ft from threshold, 475 ft R of centerline — 30:1 slope to clear
- Threshold crossing height
- 44 ft
- TDZ elevation
- 539 ft
- Declared TORA/TODA/ASDA/LDA
- 8,099 / 8,099 / 8,099 / 8,099 ft
- End lights
- REIL
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 11/29 | 8,099 ft | |
| 17/35 | 6,500 ft |
Prefer one flat page? Full runway details for KALN → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the KALN kneeboard →
Comms & NavAids
Communication frequencies
Before taxi
“Regional”Taxi & takeoff
“Regional”Departure & arrival
“Saint Louis”Also
ATC assigns the exact frequency (in your clearance or on handoff) — which one depends on your SID (departing) or STAR (arriving).
By procedure & sector (6 frequencies)
| Frequency | Used by |
|---|---|
| 119.15 | FARMR STAR |
| 128.1 | DELMA STAR |
| 239.0 | LCL/P |
| 307.05 | DELMA STAR |
| 335.5 | FARMR STAR |
| 353.9 | APCH/P DEP/P |
Source: FAA NASR (current 28-day cycle).
Instrument landing systems
RWY 29
| Runway | ILS |
|---|---|
| RWY 29 | ILS/DME · CAT I · LOC 108.5 (ALN) · GS 3.00° |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
TOY 116.00 · STL 117.40 · SKE 112.20
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| TOY · Troy | VORTAC | 116.00 · 107X | Low | r323° / 10.9 NM |
| STL · St Louis | VORTAC | 117.40 · 121X | High | r084° / 20.5 NM |
| SKE · Scott | TACAN | 112.20 · 59X | — | r338° / 22.6 NM |
Prefer one flat list? All KALN frequencies →
Charts & procedures
Lowest minimums here: ILS with vertical guidance · VFR sectional →
Airport info
From the field
Do you run KALN, or an FBO, flight school, or shop on it? Claim your listing to keep fuel, fees, hours, and services current.
Airport information
- ICAO / FAA LID
- KALN / ALN
- Coordinates
- 38.8899, -90.0460
- Elevation
- 544 ft MSL
- Magnetic variation
- 1W
- Sectional chart
- ST LOUIS
- Airport use
- Public
- Control tower
- Yes
- Tower hours
- 0700-2200
- Airspace
- Class D · CLASS D SVC 0700-2200; OTHER TIMES CLASS G
- Weather station
- AWOS-3PT · 128.0 · ☎ 618-259-7231
- ARTCC
- KANSAS CITY (ZKC)
- Flight service (FSS)
- SAINT LOUIS · 1-800-WX-BRIEF
- NOTAM facility
- ALN
- Attendance
- ALL 0700-2200
- Beacon
- white-green (SS-SR)
- Segmented circle
- No
- Wind indicator
- lighted
- FAR 139 class
- IV A
- Activated
- 1940/04
- Distance from city
- 4 E
Activity & hazards NASR
- Aerobatic Practice — to 5000MSL · SUNRISE TO SUNSET
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- ACTVT MALSR RWY 29; REIL RWY 11 - CTAF. WHEN ATCT CLSD PAPI 11, 17, 35; HIRL RWY 11/29; MIRL RWY 17/35 PRESET ON LOW INTST, TO INCR INTST & ACTVT - CTAF. on 126.0 — Chart Supplement ↗
Runway lighting aids — 11: 4-light PAPI (right) · 29: MALSR · 17: 4-light PAPI (left) · 35: 4-light PAPI (left).
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- Fuel available
- 100LL, Jet A
- Bottled oxygen
- HIGH
- Bulk oxygen
- HIGH
- Airframe service
- MAJOR
- Powerplant service
- MAJOR
- Parking
- tiedowns, hangars
- Other services
- Charter, Instruction, Rental
Ownership & management 2 contacts
Remarks FAA · 10 notes
General
- RWY 11 & 17 APCH ENDS CLOSELY ALIGNED; VERIFY CORRECT COMPASS HDG PRIOR TO DEP.
- INDEX B FFR EQUIP AVBL WITH 30-MIN PPR.
- MIGRATORY BIRD ACTIVITY IN VICINITY OF ARPT SEPTEMBER THROUGH APRIL.
- WILDLIFE ON AND IN VICINITY OF AIRPORT
Runways
- PCR VALUE: 440/F/D/X/T
- PCR VALUE: 180/F/D/X/T
- RWY 11/29 NOT AVBL FOR PART 121/PART 380 OPS WITH SKED PAX CARRYING OPS MORE THAN 9 PAX SEATS AND NON-SKED PAX CARRYING OPS MORE THAN 30 PAX SEATS. 90 DAY PPR FOR UNSKED ACR OPS GTR THAN 30 PAX SEATS - CALL AMGR.
- RWY 17/35 NOT AVBL FOR PART 121/PART 380 OPS WITH SKED PAX CARRYING OPS MORE THAN 9 PAX SEATS AND NON-SKED PAX CARRYING OPS MORE THAN 30 PAX SEATS. 90 DAY PPR FOR UNSKED ACR OPS GTR THAN 30 PAX SEATS - CALL AMGR.
Lighting
- ACTVT MALSR RWY 29; REIL RWY 11 - CTAF. WHEN ATCT CLSD PAPI 11, 17, 35; HIRL RWY 11/29; MIRL RWY 17/35 PRESET ON LOW INTST, TO INCR INTST & ACTVT - CTAF.
Attendance
- ATTENDANT AFT HR - CALL 618-259-3230 OR 258-1005.
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Live METAR, flight category, and favored runway for KALN — paste this into your website's HTML. It updates automatically and stays free.
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Nearby airports
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Also nearby: 4IS9 Weidner (private) (12 NM) · IS33 Willhoit (private) (13 NM) · IL48 St Louis Metro-East/Shafer Field (private) (15 NM) · LL49 Raymond (private) (15 NM) · IL54 Burns Field (private) (15 NM) · 94IL Furfaro Rla (private) (17 NM)
Destination
On the field
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About KALN
St Louis Regional (ALN · KALN) is an airport in Alton/St Louis, IL, at 544 ft MSL. It has 2 runways, the longest 8,099 ft, with a control tower. This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for KALN, refreshed from the Aviation Weather Center and FAA NASR.
Does KALN have a control tower?
Yes. St Louis Regional has an operating FAA control tower. See the Comms & NavAids section for tower and ground frequencies.
What is the longest runway at KALN?
St Louis Regional has 2 runways; the longest is 8,099 ft. See the Runways section for headings, surface, and lighting.
Where is KALN?
St Louis Regional is in Alton/St Louis, IL, at an elevation of 544 ft MSL. Coordinates: 38.8899, -90.0460.
More about KALN
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open KALN in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
Something here wrong or out of date? Report a data problem.