St. Louis Lambert International Airport

Airport Airport

IATA Code
STL
ICAO Code
KSTL
Airport Type
Large Airport
Class
International

St. Louis Lambert International Airport (STL) is the primary airport serving the St. Louis metropolitan area, handling domestic and a limited number of international flights. It serves a mix of legacy and low‑cost carriers and has a moderate annual passenger throughput.

The airport layout centers on a main terminal complex with concourses for gate operations; landside facilities include check‑in, ground transport and rental car services.

St. Louis Lambert International Airport
Elevation: 188 m
38.7487, -90.3700

Terminal Guide for St. Louis Lambert International Airport #

Terminal layout: Passenger operations are consolidated in the airport’s terminal complex with multiple concourses serving departures and arrivals. Check‑in, security screening and baggage claim are organized in central landside areas with gates and airline services airside.

Transfers: Moving between concourses and gates is by walking within the terminal; inter‑concourse shuttles are not typically required for normal passenger flow.

Getting to and From St. Louis Lambert International Airport #

The airport is roughly 12-20 miles (20-35 minutes) from downtown St. Louis depending on origin and traffic. Transport options include taxis, ride‑hail services, rental cars and airport shuttles.

  • Taxis / ride‑hail: Metered taxis and app‑based services operate from the terminal curbside; designated pickup areas are signposted.
  • Shuttle / airport buses: Shared‑ride shuttles and private hotel shuttles operate to and from the airport.
  • Car hire / driving: Multiple rental agencies have counters at the terminal with on‑site pickup areas.

Facilities, Shopping, and Dining at St. Louis Lambert International Airport #

Facilities include food and retail outlets, airline lounges, rental car desks and passenger services typical of a US regional hub.

  • Lounges: Airline lounges are available for eligible passengers; access depends on carrier and membership.
  • Food & drink: A variety of quick‑service and sit‑down options are distributed through the concourses.
  • Wi‑Fi & charging: Free Wi‑Fi and charging stations are available in public areas.
  • Accessibility: Full accessibility services are available; request airline assistance in advance for boarding help.

Tips for St. Louis Lambert International Airport #

  • Allow extra time if travelling during major sports or event days in St. Louis - traffic to the airport can increase.
  • If you need ground transportation, official taxi and ride‑hail pickup points are clearly signposted on the arrivals drive.

Weather & Climate near St. Louis Lambert International Airport #

Climate

St. Louis Lambert International Airport's climate is classified as Hot-Summer Continental - Hot-Summer Continental climate with hot summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -7°C to 32°C. Moderate rainfall (977 mm/year).

Air Quality: AQI 36 Good
Best Time to Visit
AugustJuneSeptember
Temperature & Rainfall
Temperature Range
43°
Warmest Month
-24°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of 3°C and lows of -7°C. Moderate rainfall (50 mm) and partly cloudy skies.

49 Poor

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-7°
81%
Humidity
Very Humid

Weather

50 mm
Rainfall
4.0 m/s
Wind
Light Breeze
0.3
UV Index
Low
9.7h daylight

February

February is cold with highs of 7°C and lows of -4°C. Moderate rainfall (55 mm) and partly cloudy skies.

50 Acceptable

Comfort

Feels Like Cold
C
Temperature
-4°
80%
Humidity
Very Humid

Weather

55 mm
Rainfall
4.0 m/s
Wind
Light Breeze
0.5
UV Index
Low
10.6h daylight

March

March is cold with highs of 13°C and lows of 1°C. Regular rainfall (89 mm) and partly cloudy skies.

56 Acceptable

Comfort

Feels Like Cold
C
Temperature
13°
78%
Humidity
Very Humid

Weather

89 mm
Rainfall
4.2 m/s
Wind
Light Breeze
0.8
UV Index
Moderate
11.8h daylight

April

April is cool with highs of 19°C and lows of 7°C. Regular rainfall (97 mm) and partly cloudy skies.

70 Very Good

Comfort

13°
Feels Like Cool
13°C
Temperature
19°
76%
Humidity
Very Humid

Weather

97 mm
Rainfall
4.3 m/s
Wind
Light Breeze
1.3
UV Index
High
13.1h daylight

May

May is mild with highs of 25°C and lows of 13°C. The wettest month with heavy rain (103 mm) and partly cloudy skies.

74 Very Good

Comfort

19°
Feels Like Mild
19°C
Temperature
13° 25°
78%
Humidity
Very Humid

Weather

103 mm
Rainfall
3.4 m/s
Wind
Light Breeze
1.6
UV Index
Very High
14.1h daylight

June

June is mild with highs of 30°C and lows of 18°C. Regular rainfall (93 mm) and partly cloudy skies.

82 Excellent

Comfort

24°
Feels Like Mild
24°C
Temperature
18° 30°
76%
Humidity
Very Humid

Weather

93 mm
Rainfall
3.0 m/s
Wind
Light Breeze
2.0
UV Index
Very High
14.6h daylight

July

July is the warmest month with highs of 32°C and lows of 20°C. Regular rainfall (97 mm).

75 Very Good

Comfort

26°
Feels Like Warm
26°C
Temperature
21° 32°
72%
Humidity
Very Humid

Weather

97 mm
Rainfall
2.6 m/s
Wind
Calm
2.0
UV Index
Extreme
14.4h daylight

August

August is warm with highs of 31°C and lows of 19°C. Regular rainfall (81 mm).

83 Excellent

Comfort

25°
Feels Like Warm
25°C
Temperature
19° 31°
70%
Humidity
Very Humid

Weather

81 mm
Rainfall
2.4 m/s
Wind
Calm
1.7
UV Index
Very High
13.5h daylight

September

September is mild with highs of 27°C and lows of 15°C. Regular rainfall (80 mm).

81 Excellent

Comfort

21°
Feels Like Mild
21°C
Temperature
15° 27°
69%
Humidity
Humid

Weather

80 mm
Rainfall
2.6 m/s
Wind
Calm
1.3
UV Index
High
12.3h daylight

October

October is cool with highs of 21°C and lows of 8°C. Moderate rainfall (70 mm) and partly cloudy skies.

72 Very Good

Comfort

14°
Feels Like Cool
14°C
Temperature
21°
71%
Humidity
Very Humid

Weather

70 mm
Rainfall
3.1 m/s
Wind
Light Breeze
0.8
UV Index
Moderate
11.1h daylight

November

November is cold with highs of 13°C and lows of 2°C. Regular rainfall (89 mm) and partly cloudy skies.

60 Good

Comfort

Feels Like Cold
C
Temperature
13°
76%
Humidity
Very Humid

Weather

89 mm
Rainfall
3.8 m/s
Wind
Light Breeze
0.4
UV Index
Low
10.0h daylight

December

December is cold with highs of 6°C and lows of -4°C. Moderate rainfall (73 mm) and partly cloudy skies.

48 Poor

Comfort

Feels Like Cold
C
Temperature
-4°
82%
Humidity
Very Humid

Weather

73 mm
Rainfall
3.8 m/s
Wind
Light Breeze
0.2
UV Index
Low
9.4h daylight

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