Last Updated on July 25, 2026 by Daniel Globe
American Airlines-operated flights at St. Louis Lambert International Airport use Terminal 1 and Concourse C. This guide, updated for July 2026, explains where to check in, which gates American currently uses, how early to arrive, where to park, and how to reach the terminal by MetroLink, rideshare, taxi, or airport shuttle.
Quick Answer
American Airlines-operated flights use Terminal 1 at STL and depart from Concourse C. The airport currently lists American at gates C6, C8, C10, C12, C16, C18, and C24. Check the operating carrier on your ticket because an American-marketed codeshare flight may use a different terminal.
Key Takeaways
- Terminal: American Airlines-operated departures use Terminal 1.
- Concourse: Follow signs for the C Gates security checkpoint and Concourse C.
- Current gates: C6, C8, C10, C12, C16, C18, and C24, subject to change.
- Arrival time: STL recommends arriving about two hours before a domestic flight and three hours before an international flight.
- Transportation: Terminal 1 is served by MetroLink, Uber, Lyft, taxis, parking shuttles, rental-car shuttles, and a free terminal shuttle.
What Terminal Does American Airlines Use at STL?
American Airlines uses Terminal 1 at St. Louis Lambert International Airport. Its ticketing operation is in the main Terminal 1 ticketing hall, and its flights normally depart from Concourse C.
The airport’s current airline and gate directory lists American Airlines at gates C6, C8, C10, C12, C16, C18, and C24.
| Airport | St. Louis Lambert International Airport |
| Airport code | STL |
| American Airlines terminal | Terminal 1 |
| Concourse | Concourse C |
| Currently listed gates | C6, C8, C10, C12, C16, C18, and C24 |
| Ticket counter | Terminal 1 main ticketing level |
| Security checkpoint | C Gates checkpoint |
| Lounge | American Airlines Admirals Club at the entrance to Concourse C |
Note: Check the “operated by” line on your reservation. An American Airlines ticket may include a flight operated by a partner. For example, a British Airways-operated flight uses Terminal 2 at STL even when it is sold through American Airlines.
American Airlines Check-In, Gates, and Security
Ticket counter and check-in services
The American Airlines ticket counter is on the Terminal 1 main ticketing level. American’s current STL airport-information page lists the counter as open daily from 3 a.m. to 7 p.m. These hours may change for holidays, construction, or schedule adjustments.
American currently lists the following services at STL:
- Mobile boarding passes
- Curbside check-in
- Self-service check-in
- TSA PreCheck
- Priority check-in benefits for eligible passengers
- TDD services
The ticket counter does not accept cash or checks, according to American Airlines. Use an accepted card or complete eligible transactions online or in the American Airlines app.
C Gates security checkpoint
After checking bags, follow signs for the C Gates security checkpoint. The airport’s current travel FAQ lists the Terminal 1 C checkpoint as operating from 3:30 a.m. to 10 p.m. Checkpoint hours can vary, especially when flight schedules change.
STL recommends arriving about two hours before a domestic flight and three hours before an international flight. Allow additional time when traveling during holidays, early-morning departure banks, severe weather, or major local events.
Warning: Do not rely on a gate number saved several days before departure. Review your boarding pass, the American Airlines app, and airport flight displays after you arrive because gate assignments can change.
American Airlines Nonstop Destinations From STL
American Airlines connects STL with several of its major hubs and focus markets. According to the airport’s current nonstop-service directory, American serves the following destinations from St. Louis. Seasonal routes and flight frequencies can change throughout the year.
| Region | Nonstop destinations currently listed for American |
|---|---|
| Northeast | Boston (BOS), New York LaGuardia (LGA), Philadelphia (PHL) |
| Southeast and Mid-Atlantic | Charlotte (CLT), Miami (MIA), Washington Reagan National (DCA) |
| Midwest and Southwest | Chicago O’Hare (ORD), Dallas/Fort Worth (DFW), Phoenix (PHX) |
| West Coast | Los Angeles (LAX) |
| International | Cancun, Mexico (CUN), listed as seasonal |
American also sells connecting itineraries from STL to many other destinations in the United States and abroad. Those cities should not be confused with nonstop routes from St. Louis. Confirm whether an itinerary is nonstop, connecting, or operated by a partner before traveling to the airport.
Facilities and Amenities in Terminal 1 and Concourse C
Terminal 1 and Concourse C provide dining, retail, family, lounge, and accessibility services for American Airlines passengers. Individual business hours can change based on the day and the flight schedule, so consult the airport’s current shop, dine, and services directory before depending on a particular location.
Food and drinks in Concourse C
Current Concourse C options include several local and familiar choices:
- Schlafly: Near Gate C1
- Starbucks: Near Gates C2 and C17
- Kingside Diner: Near Gate C9
- NASCAR Drafthouse: Near Gate C15
- Ted Drewes Frozen Custard: Near Gate C15
Some restaurants open only during peak flight periods. Passengers with early or late departures should bring a snack when dietary needs make food availability important.
American Airlines Admirals Club
The American Airlines Admirals Club is beyond security, to the left near the entrance to Concourse C. Its currently published hours are 4:30 a.m. to 7 p.m. daily.
The lounge offers eligible guests complimentary food and drinks, a full-service bar, and Wi-Fi. Entry is not automatically included with every American Airlines ticket. Access depends on membership, eligible cabin, qualifying status, itinerary, or an accepted pass.
Family and passenger services
Useful services in Concourse C include:
- A children’s Play Port near Gate C3
- A lactation suite near Gate C9
- A technology and travel-accessory shop near Gate C6
- A service-animal relief area near Gate C24
- An indoor animal-relief area near Gate C24 for eligible American Airlines passengers
American also identifies an outdoor animal-relief area on the main ticketing level. Exit at doorway MT6 and turn right.
Accessibility and wheelchair assistance
Travelers who need a wheelchair, skycap, or sighted-guide service should contact American Airlines before departure. According to the airport’s accessibility guidance, airlines provide these passenger services free of charge and can arrange assistance from the terminal curb.
Terminal 1 has step-free entrance routes, elevators with Braille and audible information, accessible restrooms, accessible parking, and an accessible MetroLink platform. The airport’s information and paging booth can also provide voice and visual paging assistance.
Baggage Claim and Arrivals
Passengers arriving on American Airlines should follow signs from Concourse C to the Terminal 1 baggage-claim level. Check the baggage display screens for the carousel assigned to your flight because carousel numbers can change.
If a checked bag is delayed, damaged, or missing, report it to American Airlines before leaving the airport when possible. The airport currently lists the American Airlines baggage office telephone number as 314-253-4663.
For an item lost on an aircraft or in an airline-controlled area, contact American Airlines. For an item lost in a TSA checkpoint, use TSA’s lost-and-found process. The airport police and lost-and-found office are near Terminal 1 Door 18 for items lost in public airport areas.
Transportation to and From Terminal 1
MetroLink light rail
The Terminal 1 MetroLink station is on the ticketing level near Door 1, east of the airline ticket counters. Tickets must be purchased before riding, either from a station vending machine or through an accepted transit application.
MetroLink connects the airport with downtown St. Louis and other communities in Missouri and Illinois. Check the current Metro Transit schedule before leaving, particularly for early-morning or late-night travel.
Uber and Lyft
Uber and Lyft serve Terminal 1 from the designated ride-app zone near Door 6 on the departure level. Request the ride through the company’s app and confirm the vehicle, license plate, and driver before entering.
Taxis
The Terminal 1 taxi zone is reached through Door 14 toward the garage’s Yellow Level. Airport taxi fares depend on the destination, and the airport currently states that each pickup includes an airport-use fee.
Rental-car shuttles
Rental-car facilities are located away from the terminal. Rental companies provide shuttle transportation between Terminal 1 and their facilities. Pickup points may vary by company and construction conditions, so follow the signs in baggage claim and confirm instructions with the rental provider.
Travel between Terminal 1 and Terminal 2
STL provides a free terminal shuttle that operates between Terminal 1 Door 12 and Terminal 2 Door 10. Use it when meeting a traveler at the other terminal or when an operating carrier departs from a different terminal.
Picking up an arriving passenger
Vehicles may not wait at the Terminal 1 arrivals curb. Drivers should use the free Terminal 1 cell-phone lot until the arriving passenger has collected any checked bags and is ready at the curb.
The official Terminal 1 cell-phone-lot address is:
10985 Lambert International Boulevard
St. Louis, MO 63044
Parking for American Airlines Passengers
The Terminal 1 garage is within walking distance of American Airlines ticketing and Concourse C. The following rates took effect on July 1, 2026 and may change later:
| Parking time | Terminal 1 garage rate |
|---|---|
| 0–2 hours | $5 |
| 2–4 hours | $14 |
| 4–6 hours | $20 |
| 6–12 hours | $26 |
| 12–24 hours | $31 |
Check the official Terminal 1 parking page for current rates and availability. The attached garage can fill during busy travel periods.
Lot A is another nearby option and is connected to Terminal 1 by a pedestrian tunnel. More distant long-term lots include free accessible shuttle service to the terminals.
Pro Tip: STL recommends allowing approximately 30 additional minutes when parking. This buffer helps cover traffic, finding a space, unloading luggage, and walking or riding a shuttle to Terminal 1.
How to Navigate an American Airlines Departure at STL
- Confirm the operating airline. Check whether the flight is operated by American Airlines or a partner.
- Check the latest flight information. Review the American Airlines app or website before leaving home.
- Travel to Terminal 1. Follow airport road signs for Terminal 1 departures, Garage 1, or the appropriate parking lot.
- Check in and drop bags. Use the American ticket counter, curbside service, self-service kiosk, mobile app, or eligible online check-in option.
- Enter through the C Gates checkpoint. Keep your identification and boarding pass ready.
- Verify the gate after security. Compare your boarding pass with airport displays because American uses several gates in Concourse C.
- Be at the gate before boarding closes. Reaching the terminal before departure time is not enough if check-in, baggage, or boarding deadlines have passed.
Families, passengers with mobility needs, and travelers checking several bags should allow more time. Request wheelchair assistance from American Airlines before the travel date whenever possible.
History of Terminal 1 and American Airlines at STL
St. Louis Lambert International Airport began in 1920 when Major Albert Bond Lambert and the Missouri Aeronautical Society developed an airfield on leased farmland. The City of St. Louis later purchased and expanded the property.
The airport’s first passenger terminal opened in 1933. The present Terminal 1 followed in 1956. Designed by architect Minoru Yamasaki, its distinctive arched design became an influential example of modern airport architecture.
American Airlines was among the airlines serving Lambert during the post-war growth of commercial aviation. American now operates from Concourse C rather than from a separate airline-owned terminal.
Travelers interested in the airport’s aviation, manufacturing, and architectural background can read the official STL history.
Future Developments at STL
STL is working on a proposed Consolidated Terminal Program intended to bring the airport’s separate passenger facilities into a more unified terminal system. The concept is broader than a renovation of American Airlines’ current gates.
The airport’s published concept includes:
- Up to 62 aircraft gates
- A consolidated passenger-security checkpoint
- Customs access for all carriers
- Shorter and more efficient passenger routes
- New terminal roadways
- A larger parking garage and ground-transportation center
- Space for additional concessions
- Retention of the historic Terminal 1 domes
The airport’s current development information says enabling construction is expected to begin in 2026, with the broader program timeline extending into the 2030s. However, STL states that proposed projects remain dependent on airline agreements, funding approvals, permits, and other authorizations.
Passengers should therefore continue using the current Terminal 1 and Concourse C instructions unless American Airlines or STL publishes a specific change.
Conclusion and Final Thoughts
American Airlines-operated flights at STL use Terminal 1 and Concourse C. The airport currently lists American at gates C6, C8, C10, C12, C16, C18, and C24, although the assigned gate can change on the day of travel.
Arrive early, verify the operating carrier, use the C Gates checkpoint, and review the latest airline and airport information before leaving home. These simple checks are especially important for seasonal flights, partner-operated itineraries, checked baggage, and trips during busy travel periods.
After confirming your terminal plans, you can also review this guide to the best carry-on luggage for international travel for additional packing guidance.
Frequently Asked Questions
What terminal is American Airlines at STL?
American Airlines-operated flights use Terminal 1 at St. Louis Lambert International Airport. Ticketing is in the main Terminal 1 hall, and departures normally use Concourse C.
Which gates does American Airlines use at STL?
STL currently lists American Airlines at gates C6, C8, C10, C12, C16, C18, and C24. Your flight may use a different gate if the airport changes assignments, so check your boarding pass and airport displays.
Where is the American Airlines ticket counter at STL?
The American Airlines ticket counter is on the main ticketing level of Terminal 1. American currently publishes daily counter hours of 3 a.m. to 7 p.m., but travelers should verify the hours before departure.
How early should I arrive for an American Airlines flight at STL?
STL recommends arriving about two hours before a domestic flight and three hours before an international flight. Add more time for parking, checked bags, special assistance, holiday crowds, or severe weather.
Does American Airlines have an Admirals Club at STL?
Yes. The Admirals Club is beyond security near the entrance to Concourse C. Its currently published hours are 4:30 a.m. to 7 p.m. daily. Access depends on membership, status, cabin, itinerary, or another eligible entry method.
Does American Airlines fly internationally from STL?
The airport currently lists seasonal American Airlines nonstop service from STL to Cancun, Mexico. American also sells international itineraries that connect through other airports or use partner airlines. Check the itinerary for stops and the operating carrier.
How do I get to Terminal 1 at STL?
Drivers should follow airport signs for Terminal 1 departures or Garage 1. MetroLink passengers can use the Terminal 1 station near Door 1 on the ticketing level. A free terminal shuttle runs between Terminal 1 Door 12 and Terminal 2 Door 10.
Is parking available near American Airlines in Terminal 1?
Yes. The Terminal 1 garage is within walking distance of American ticketing. Lot A is connected to Terminal 1 by a tunnel, while more distant lots provide shuttle service. Check current rates and availability before arriving.
Where is the service-animal relief area for American Airlines passengers?
An indoor service-animal relief area is located in Concourse C near Gate C24. American also identifies an outdoor relief area on the main ticketing level outside doorway MT6.
Sources
- St. Louis Lambert International Airport: Flights and Airlines — current American Airlines terminal, gates, and nonstop destinations.
- American Airlines: St. Louis Airport Information — ticket-counter hours, check-in services, and animal-relief information.
- St. Louis Lambert International Airport: Frequently Asked Questions — arrival guidance, security-checkpoint hours, and terminal-shuttle information.
- St. Louis Lambert International Airport: Parking and Transportation — MetroLink, rideshare, taxi, rental-car, cell-phone-lot, and parking guidance.
- St. Louis Lambert International Airport: Airport History — the airport’s 1920 origins and Terminal 1’s 1956 opening.
- St. Louis Lambert International Airport: On-Airport Development — the proposed consolidated-terminal concept and current development timeline.