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ST LOUIS RGNL - Airport Diagram
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KALN
ICAO KALNIATA ALNLocal ALN
ST LOUIS RGNL
PublicPUB

4 miles E of ALTON/ST LOUIS, IL, US
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Status
Operational
Coordinates
38° 53' 24"N 90° 02' 46"W
Elevation
544' MSL
Pattern Alt
1544' MSL
Mag Variation
2°W
Declination
1°W
Fuel
JET A, 100LL
FSS
SAINT LOUIS (STL)
Sectional
ST LOUIS
ARTCC
KANSAS CITY (ZKC)
Data Effective
2/19/26-3/19/26
KALN VFR
10:35 PM CST  
Overcast 4,500'
7sm
48°F
45°F
30.11"Hg
060° 4kts
AO2 LTG DSNT NE T00870070
METAR KALN 040435Z AUTO 06004KT 7SM OVC045 09/07 A3011 RMK AO2 LTG DSNT NE T00870070
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Weather and Advisory

ATIS 128.0
AWOS-3PT 128.0
(618) 259-7231

Common

CTAF 126.0
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.
UNICOM 122.95

Clearance

Clearance Delivery 120.2
WHEN TWR CLSD

Ground

REGIONAL GROUND 120.2
0700-2200

Tower

REGIONAL TOWER 126.0
0700-2200

Arrival

DELMA STAR 128.1
FARMR STAR 119.15

Approach

SAINT LOUIS APPROACH 124.2

Departure

SAINT LOUIS DEPARTURE 124.2

Terminal Area Forecast

KSTL (17nm)
Tue, 3/3 8:41 PM CST
Tue, 3/3 9:00 PM CST - Thu, 3/5 12:00 AM CST
IFR
9:00 PM CST - 2:00 AM CST
Mist
Overcast 800'
6sm
050° 6kts
IFR
2:00 AM CST - 7:00 AM CST
Showers and Rain and Mist
Overcast 800'
4sm
040° 5kts
IFR
2:00 AM CST - 7:00 AM CST
Thunderstorm and Rain and Mist
Overcast 800'
2sm
Calm
LIFR
7:00 AM CST - 12:00 PM CST
Mist
Overcast 400'
1sm
VRB° 4kts
IFR
12:00 PM CST - 3:00 PM CST
Light Showers and Rain and Mist
Overcast 800'
4sm
VRB° 4kts
VFR
3:00 PM CST - 8:00 PM CST
Mist
Overcast 3,500'
6sm
VRB° 4kts
MVFR
8:00 PM CST - 12:00 AM CST
Light Showers and Rain and Mist
Overcast 1,100'
5sm
VRB° 4kts
TAF KSTL 040241Z 0403/0506 05006KT 6SM BR OVC008
   FM040800 04005KT 4SM SHRA BR OVC008
   PROB30 0408/0413 2SM TSRA BR OVC008CB
   FM041300 VRB04KT 1SM BR OVC004
   FM041800 VRB04KT 4SM -SHRA BR OVC008
   FM042100 VRB04KT 6SM BR OVC035
   FM050200 VRB04KT 5SM -SHRA BR OVC011
KALN
EffectiveExpiresCategoryNOTAM
Domestic
2/25/26
0134Z
!ALN 02/015 ALN COM REMOTE TRANS/REC 120.2 U/S 2602250134-2602262000EST
2/25/26
0102Z
2/25/26
2359Z
Runway!ALN 02/014 ALN RWY 17/35 CLSD EXC XNG 2602250102-2602252359
2/6/26
1954Z
4/6/26
2359Z
!ALN 02/003 ALN OBST TOWER LGT (ASR 1279026) 390250.20N0900411.50W (9.5NM N ALN) 878.6FT (257.9FT AGL) U/S 2602061954-2604062359
2/2/26
2053Z
5/30/26
1159Z
!ALN 02/001 ALN OBST TOWER LGT (ASR 1265726) 390232.30N0895308.10W (11.9NM NE ALN) 884.8FT (257.9FT AGL) U/S 2602022053-2605301159
FDC
12/2/25
1547Z
!FDC 5/3206 ALN SID ST LOUIS RGNL, ALTON/ST LOUIS, IL.
LINDBERGH NINE DEPARTURE ...
LITTLE ROCK TRANSITION NA EXCEPT FOR ACFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS. LIT R-018 UNRELIABLE AT WEZRR. 2512021547-2711271547EST
9/23/25
1426Z
5/5/26
1426Z
!FDC 5/9030 ALN SID ST LOUIS RGNL, ALTON/ST LOUIS, IL.
PLESS FIVE DEPARTURE...
NASHVILLE TRANSITION NA EXCEPT FOR AIRCRAFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS,
BNA VOR OUT OF SERVICE. 2509231426-2605051426EST
Yes
0700-2200
ATTENDANT AFT HR - CALL 618-259-3230 OR 258-1005.
ST. LOUIS REGIONAL
8 TERMINAL DR SUITE 1
EAST ALTON, IL 62024
Phone: 618-259-2531
DANIEL ADAMS, AAE
8 TERMINAL DR, SUITE 1
EAST ALTON, IL 62024
Phone: 618-259-2531
SAINT LOUIS FSS (STL)
Toll Free: 1-800-WX-BRIEF
ALN
--
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.
N/A
Yes - Lighted
No
No
Hanger, Tie-Down
NOT a Landing Rights Airport
NOT an Airport of Entry
Major
Major
High Pressure
High Pressure
Charter Service
Pilot Instruction
Aircraft Rental

Runway 11/29

8099 ft. x 150 ft.
ASPH  
Good 
GRVD 
HIGH 
 
106,000lbs 
144,000lbs 
198,000lbs 
575,000lbs 
  Runway 11 Runway 29
True Heading 113°293°
Traffic Pattern Left Left
Markings PIR PIR
Markings Condition GOOD GOOD
Latitude 38° 53' 43"N 38° 53' 11"N
Longitude 90° 03' 18"W 90° 01' 44"W
Elevation 538' 526'
Threshold Crossing Height 44 ft. AGL --
Visual Glide Path Angle 3° --
Visual Slope Indicator P4R --
Approach Lights MALSR
Centerline Lights No No
Runway End Identifier Lights Yes No

Runway 17/35

6500 ft. x 100 ft.
ASPH  
Good 
NONE 
MED 
 
47,000lbs 
63,000lbs 
109,000lbs 
-- 
  Runway 17 Runway 35
True Heading 173°353°
Traffic Pattern Left Left
Markings NPI NPI
Markings Condition FAIR FAIR
Latitude 38° 53' 52"N 38° 52' 48"N
Longitude 90° 03' 09"W 90° 02' 59"W
Elevation 533' 542'
Threshold Crossing Height 43 ft. AGL 43 ft. AGL
Visual Glide Path Angle 3° 3°
Visual Slope Indicator P4L P4L
Approach Lights
Centerline Lights No No
Runway End Identifier Lights
A110-3RWY 11 & 17 APCH ENDS CLOSELY ALIGNED; VERIFY CORRECT COMPASS HDG PRIOR TO DEP.
A110-4INDEX B FFR EQUIP AVBL WITH 30-MIN PPR.
A110-5MIGRATORY BIRD ACTIVITY IN VICINITY OF ARPT SEPTEMBER THROUGH APRIL.
A110-6WILDLIFE ON AND IN VICINITY OF AIRPORT
A17-M1ATTENDANT AFT HR - CALL 618-259-3230 OR 258-1005.
A30-11/29RWY 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.
A30-17/35RWY 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.
A39-11/29PCR VALUE: 440/F/D/X/T
A39-17/35PCR VALUE: 180/F/D/X/T
A81-APTACTVT 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.
ST LOUIS RGNL (ICAO: KALN, IATA: ALN) is a public airport located in ALTON/ST LOUIS, IL, US.