
St. Louis Lambert International Airport, also known as Lambert Field or simply Lambert, is the largest and busiest airport in the state of Missouri. It is located 14 miles northwest of downtown St. Louis and covers 3,793 acres of land. The airport has a rich history in aviation, dating back to the early 20th century, and has experienced significant growth over the years, with an increase in the number of passengers and destinations served. Lambert is known for its efficiency, with travellers usually getting through security and to their gates in under 15 minutes. However, travellers are advised to arrive at the airport at least 45 minutes to an hour early to account for any potential delays, especially during busy mornings or holiday periods. With that being said, is Lambert Airport busy at 5 am?
| Characteristics | Values |
|---|---|
| Airport Name | St. Louis Lambert International Airport |
| IATA | STL |
| ICAO | KSTL |
| FAA LID | STL |
| Location | 14 miles (23 km) northwest of downtown St. Louis in unincorporated St. Louis County between Berkeley and Bridgeton |
| Area | 3,793 acres (1,535 ha) |
| Terminals | 2 |
| Concourses | 5 |
| Gates | 54 |
| Business | The airport is the largest and busiest airport in the state of Missouri |
| Busy at 5 AM | The airport is usually a ghost town at 5 AM |
| Time to reach | It is recommended to reach the airport at least 40 minutes prior to departure time during dead times and 60-80 minutes for peak times |
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What You'll Learn
- Lambert St. Louis International Airport is the largest and busiest airport in Missouri
- The airport covers 3,793 acres of land and is located 14 miles northwest of downtown St. Louis
- It has two terminals, five concourses, and 54 gates, with nonstop service to over 80 domestic and international destinations
- TSA PreCheck is available at Terminal 1 and Terminal 2 for expedited security screening
- The airport is connected to other parts of the St. Louis metropolitan area via the MetroLink rail system

Lambert St. Louis International Airport is the largest and busiest airport in Missouri
St. Louis Lambert International Airport, also known as Lambert Field or simply Lambert, is the largest and busiest airport in Missouri. Located 14 miles (23 km) northwest of downtown St. Louis, the airport covers 3,793 acres (1,535 ha) of land. It is the primary international airport serving metropolitan St. Louis and provides nonstop service to airports in the United States, Canada, Mexico, the Caribbean, and Europe. In 2023, there were more than 270 daily departures to 80 nonstop domestic and international destinations, serving nearly 16 million passengers.
The history of the airport dates back to June 1920 when a 170-acre field was leased to the Missouri Aeronautical Society, which established the "St. Louis Flying Field." The field was renamed the "Lambert-St. Louis Flying Field" in 1923 after Albert Bond Lambert, an Olympic silver medalist golfer and prominent aviator who was among the Society's leading members. In February 1925, Lambert purchased the field and added hangars and a passenger terminal. The airport became the first in the world to implement an air traffic control system, using waving flags to communicate with pilots.
In the 1930s, the airport was officially christened "Lambert–St. Louis Municipal Airport," and by the end of the decade, it was served by multiple airlines. During World War II, the airport served as a manufacturing base for aircraft companies. After the war, it became a reserve installation for carrier-based fighters and land-based patrol aircraft. In the 1970s, there were proposals to replace Lambert with a new airport in Illinois, but Missouri residents rejected this idea. As a result, Lambert received a significant expansion, lengthening runways and increasing the number of gates, boosting its capacity.
Today, Lambert St. Louis International Airport continues to be a vital transportation hub for the region. While it is unclear exactly how busy the airport is at 5 AM, sources suggest that it can be a busy time, especially during rush hour traffic in Saint Charles County. It is recommended that passengers arrive at the airport 45 minutes to 2 hours early to account for potential delays in security and baggage check. Programs like TSA PreCheck and CLEAR Plus are available at the airport to expedite security screening and reduce wait times.
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The airport covers 3,793 acres of land and is located 14 miles northwest of downtown St. Louis
St. Louis Lambert International Airport, also known as Lambert Field or simply Lambert, is located 14 miles (23 km) northwest of downtown St. Louis, Missouri, in the United States. Covering 3,793 acres (1,535 ha) of land, it is the largest and busiest airport in the state of Missouri. The airport is named after Albert Bond Lambert, an Olympic silver medalist golfer in the 1904 Summer Olympics, president of the Lambert Pharmaceutical Corporation, and the first person to receive a pilot's license in St. Louis.
The history of the airport dates back to 1920 when a 170-acre field was leased to the Missouri Aeronautical Society, which established the "St. Louis Flying Field." In 1923, the field was renamed the "Lambert-St. Louis Flying Field" in honour of Albert Bond Lambert's significant contributions to aviation in the city. Two years later, Lambert purchased the field and began developing it by adding hangars and a passenger terminal. The airport became the first in the world to implement an air traffic control system, using waving flags to communicate with pilots.
In 1930, the airport was officially named the "Lambert–St. Louis Municipal Airport," and by 1933, the first terminal building was opened. Over the years, the airport has undergone expansions and served various airlines, including Robertson Air Lines, Marquette Airlines, Eastern Air Lines, and Transcontinental & Western Air (later known as TWA). During World War II, the airport served as a manufacturing base for aircraft corporations.
Today, St. Louis Lambert International Airport offers nonstop service to destinations across the United States and internationally, including Canada, Mexico, the Caribbean, and Europe. In 2019, the airport served nearly 16 million passengers, with more than 270 daily departures to 80 nonstop domestic and international locations. The airport is easily accessible from downtown St. Louis, with a distance of 14 miles, and it is connected to the city's mass transportation rail system, MetroLink.
As for the airport's level of busyness at 5 AM, there are varying experiences. Some travellers recommend arriving at the airport 45-60 minutes before their flight, while others suggest 90 minutes to account for potential shuttle delays. One traveller mentioned that the longest part of their airport experience was reaching their gate at the end of the southwest terminal. It is recommended to use resources like flight tracker apps or the airport's official website to monitor flight schedules and security wait times, especially during busy morning rush hours.
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It has two terminals, five concourses, and 54 gates, with nonstop service to over 80 domestic and international destinations
St. Louis Lambert International Airport, also known as Lambert Field or simply Lambert, is the largest and busiest airport in the state of Missouri. It is located 14 miles (23 km) northwest of downtown St. Louis, covering 3,793 acres (1,535 ha) of land. The airport is named after Albert Bond Lambert, an Olympic medallist and prominent St. Louis aviator. It rose to international prominence in the 20th century due to its association with Charles Lindbergh, its groundbreaking air traffic control (ATC), and its status as the primary hub of Trans World Airlines (TWA).
Lambert Airport has two terminals, five concourses, and 54 gates in total. Terminal 1, the larger of the two, has two concourses (A and C) and 36 gates, while Terminal 2 has a single concourse (E) with 18 gates. Terminal 2 is also where all international flights without border preclearance are processed. The terminals are connected by shuttle buses and a free Metro rail link, with stations at each terminal.
The airport provides nonstop service to over 80 domestic and international destinations across the United States, Canada, Mexico, the Caribbean, and Europe. In 2024, it served nearly 16 million passengers, and in 2019, it had more than 270 daily departures to these destinations.
To ensure a smooth travel experience, passengers can take advantage of the interactive maps available on the airport's website to navigate to their specific gates, as well as locate various amenities, lounges, security checkpoints, and baggage claim areas. The airport also offers faster security clearance options, such as CLEAR Plus, and TSA PreCheck, to expedite the security screening process and reduce wait times.
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TSA PreCheck is available at Terminal 1 and Terminal 2 for expedited security screening
The TSA PreCheck program is available at Lambert St. Louis International Airport (STL) to provide expedited security screening for travellers. The program is available at Terminal 1 (A and C Gates) and Terminal 2 (E Gates). With TSA PreCheck, passengers can keep their shoes, light outerwear, and belts on, and their laptops and liquids in their carry-on bags during security checks. This significantly speeds up the security process.
TSA PreCheck is intended for select frequent flyers of participating airlines and members of U.S. Customs and Border Protection (CBP) Trusted Traveller programs. The application process allows U.S. citizens and lawful permanent residents to pre-enrol online and then visit an application centre to provide biographical information, fingerprints, and valid identification. The application fee is $85 for a five-year membership.
The TSA PreCheck application centre at Lambert Airport is located pre-security on the upper ticketing level of Terminal 1, near the MetroLink station entrance. The centre is open Monday to Friday from 9 am to 5 pm. Travellers can also enrol at non-airport TSA PreCheck application centres in Missouri and Illinois, including locations in Chesterfield, MO, and Granite City, IL.
Lambert St. Louis Airport can be a busy airport, especially during rush hour traffic, which occurs around 5 am. It is recommended to arrive at the airport at least one hour early to ensure enough time to get through security and to your gate. Using a flight tracker app can help judge how busy the airport and security lines will be.
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The airport is connected to other parts of the St. Louis metropolitan area via the MetroLink rail system
St. Louis Lambert International Airport is a busy airport, serving nearly 16 million passengers in 2024. It is the largest and busiest airport in the state of Missouri. The airport is located 14 miles northwest of downtown St. Louis, in St. Louis County, between Berkeley and Bridgeton.
The airport is connected to other parts of the St. Louis metropolitan area via the MetroLink mass transportation rail system. The MetroLink provides convenient access to and from the airport for passengers and employees. It also offers a connection to the region's secondary commercial airport, MidAmerica St. Louis Airport, which is located about 37 miles east of Lambert Airport.
The MetroLink system allows for easy travel throughout the St. Louis metropolitan area, providing access to various neighbourhoods and destinations. It offers a fast and efficient way to get to and from the airport, especially during peak hours when road traffic may be heavier. The rail connection between Terminal 1 and Terminal 2 at the airport is free of charge as of July 2024, making it a convenient option for passengers transferring between terminals.
The airport itself has two terminals, five concourses, and 54 gates. Terminal 1 has 36 gates across two concourses, while Terminal 2 has 18 gates across one concourse. The terminals offer various amenities, including lounges, clubs, and facilities for specific airlines. The airport provides nonstop service to destinations within the United States and internationally, including Canada, Mexico, the Caribbean, and Europe.
With its connection to the MetroLink system, St. Louis Lambert International Airport ensures that travellers can efficiently move to and from the airport and access various parts of the St. Louis metropolitan area. The integration of the airport into the region's rail network enhances the overall accessibility and convenience for passengers and employees alike.
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Frequently asked questions
Lambert St. Louis International Airport is the largest and busiest airport in the state of Missouri. While there is no information about the airport's peak hours, one source mentions that the airport is a ghost town at 5 am. However, another source mentions that they waited over 20 minutes for TSA at Gate C at 5 am.
It is recommended to arrive at the airport at least 40 minutes before departure during dead times and 60-80 minutes before departure during peak times.
You can check the security wait times by visiting the airport's official website and searching for "security wait times".
CLEAR Plus and TSA PreCheck are available at Lambert Airport and help travellers move through security faster using biometric authentication and advanced technology.
Lambert Airport's busiest time was in 2000, with 30.6 million passengers. The airport experienced congestion and delays during peak hours, especially when bad weather reduced the number of usable runways.














