St. Louis Airport Terminals
Information compiled by David Enrich, aviation and airport guide expert since 1999.
St. Louis Lambert International Airport (STL) is a well-organized and user-friendly airport with two separate terminals: Terminal 1 and Terminal 2. While not physically connected airside, both terminals are efficiently linked by road and public transport, making transfers manageable with proper planning. The airport is known for its ease of navigation, relatively short walking distances, and moderate passenger traffic compared to larger U.S. hubs.
History and origins
STL is one of the oldest airports in the United States, with origins dating back to the 1920s. It became a major aviation hub during the golden age of air travel, particularly as the primary base for Trans World Airlines (TWA). One of its most distinctive architectural features is the iconic domed terminal design by architect Minoru Yamasaki, also known for designing the original World Trade Center in New York.
Terminals Map
Image source: airportmaps.com
Terminal 1
Terminal 1 is the largest and busiest terminal at STL. It handles most domestic and international flights and includes multiple concourses (A, B, and C). The terminal is characterized by its vaulted ceiling design and spacious layout.
Layout and levels:
Upper level: Departures, check-in counters and security checkpoints
Lower level: Arrivals, baggage claim and ground transportation
Airlines: American Airlines, Delta Air Lines, United Airlines, Lufthansa (international), among others
Facilities:
Free Wi-Fi throughout the terminal
ATMs and currency exchange points
Charging stations and seating areas
No luggage storage currently available
Shops:
Travel essentials, newsstands, souvenirs, convenience stores
Restaurants and cafés:
Starbucks (coffee and snacks, early morning to evening)
Schlafly Beer Bar (local craft beer and casual dining)
Three Kings Public House (American cuisine and bar service)
Concourse C usually has the best variety of food options and tends to be less crowded during peak hours
Terminal 2
Terminal 2 is smaller and mainly used by Southwest Airlines. It offers a simpler layout and quicker processing times, making it efficient for domestic travelers.
Layout and levels:
Single main level with check-in, security, gates, and services
Airlines: Primarily Southwest Airlines
Facilities:
Free Wi-Fi
ATMs
Family restrooms and seating areas
Shops:
Convenience stores, travel accessories, basic retail
Restaurants and cafés:
Starbucks (coffee and quick bites)
Great American Bagel (breakfast and sandwiches)
Local grill-style eateries
Terminal 2 security lines can move quickly, but during peak Southwest departure waves, allow extra time
Terminal differences and connections
Terminal 1 is larger, offers more airline variety, and includes international flights, while Terminal 2 is more compact and focused on Southwest Airlines operations.
There is no airside connection between terminals. Passengers must exit and use:
Shuttle buses between terminals
MetroLink light rail system (two stops connecting both terminals)
Allow at least 30–45 minutes if transferring between terminals
Check-in and boarding
Check-in counters are located on the upper levels of Terminal 1 and the main level of Terminal 2. Online check-in is widely available and recommended to save time. Boarding gates are clearly marked, and walking distances are generally short compared to major international airports.
Arrive 2 hours before domestic flights and 3 hours before international departures
Security and baggage control
Security checkpoints are efficient, but wait times can vary depending on time of day and terminal. TSA PreCheck is available in both terminals.
Early morning and late afternoon are peak times for security queues
Lost and found
Lost and found services are managed by airport authorities and individual airlines depending on where the item was lost. It is recommended to report lost items as soon as possible either online or at airport service counters.
Services for families and reduced mobility passengers
Family restrooms and baby changing facilities are available in both terminals. Assistance services for passengers with reduced mobility can be requested through airlines prior to arrival.
Request assistance at least 48 hours before your flight for a smoother experience
Additional facilities
Free Wi-Fi is available throughout the airport
Charging stations are widely distributed
ATMs are located in both terminals
No official luggage storage service is currently available