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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 MVFR
2:35 AM CST  
Overcast 6,500'
Broken 5,000'
Broken 2,700'
10sm
48°F
46°F
30.09"Hg
100° 5kts
AO2 LTG DSNT W T00910078
METAR KALN 040835Z AUTO 10005KT 10SM BKN027 BKN050 OVC065 09/08 A3009 RMK AO2 LTG DSNT W T00910078
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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 11:20 PM CST
Wed, 3/4 12:00 AM CST - Thu, 3/5 6:00 AM CST
IFR
12:00 AM CST - 6:00 AM CST
Mist
Overcast 800'
6sm
040° 6kts
IFR
Temporary 3:00 AM CST - 5:00 AM CST
Thunderstorm and Rain
Overcast 600'
2sm
Calm
LIFR
6:00 AM CST - 12:00 PM CST
Mist
Overcast 400'
1sm
VRB° 3kts
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'
3sm
VRB° 4kts
IFR
12:00 AM CST - 6:00 AM CST
Light Showers and Rain
Overcast 500'
3sm
VRB° 4kts
TAF KSTL 040520Z 0406/0512 04006KT 6SM BR OVC008
   TEMPO 0409/0411 2SM TSRA OVC006CB
   FM041200 VRB03KT 1SM BR OVC004
   FM041800 VRB04KT 4SM -SHRA BR OVC008
   FM042100 VRB04KT 6SM BR OVC035
   FM050200 VRB04KT 3SM -SHRA BR OVC011
   FM050600 VRB04KT 3SM -SHRA OVC005
KALN
EffectiveExpiresCategoryNOTAM
Domestic
3/6/26
0600Z
3/6/26
1200Z
!ALN 03/002 ALN COM CLR DELIVERY 120.2 NOT AVBL 2603060600-2603061200
3/5/26
0600Z
3/5/26
1200Z
!ALN 03/001 ALN COM CLR DELIVERY 120.2 U/S 2603050600-2603051200
3/4/26
0600Z
3/4/26
1200Z
!ALN 02/016 ALN COM CLR DELIVERY 120.2 U/S 2603040600-2603041200
2/28/26
1426Z
3/6/26
2359Z
!ALN 02/019 ALN OBST STACK (ASN UNKNOWN) 385029.94N0900344.07W (3.3NM S ALN) 688FT (242FT AGL) U/S 2602281426-2603062359
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
FDC
3/4/26
1400Z
3/10/26
1930Z
!FDC 6/2801 ALN SID ST LOUIS RGNL, ALTON/ST LOUIS, IL.
GATEWAY ONE DEPARTURE...
DEPARTURE PROCEDURE DME REQUIRED EXCEPT FOR ACFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS,
ENL VORTAC OUT OF SERVICE. 2603041400-2603101930EST
3/4/26
1230Z
3/10/26
2355Z
!FDC 6/3051 ALN SID ST LOUIS RGNL, ALTON/ST LOUIS, IL.
GATEWAY ONE DEPARTURE...
BRICKYARD TRANSITION NA EXCEPT FOR AIRCRAFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS,
VHP VORTAC OUT OF SERVICE. 2603041230-2603102355EST
2/27/26
1507Z
3/27/26
1507Z
!FDC 6/1192 ALN SID ST LOUIS RGNL, ALTON/ST LOUIS, IL.
LINDBERGH NINE DEPARTURE...
DEPARTURE PROCEDURE WALNUT RIDGE TRANSITION NA EXCEPT FOR ACFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS.
ARG VOR OUT OF SERVICE. 2602271507-2603271507EST
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.