St Louis Lambert airport code: STL, KSTL and current travel details
The passenger airport code for St. Louis Lambert International Airport is STL. Aviation systems use KSTL; airline bookings, boarding passes, baggage tags and most traveler-facing flight searches use STL.
Airport-Guides.org is not St. Louis Lambert International Airport, the City of St. Louis, FAA, TSA, U.S. Customs and Border Protection, Metro Transit, an airline, parking operator, taxi company or rental-car provider. Use this page for planning, then confirm live details with the responsible official source.
STL provides a free terminal shuttle. Current airport guidance directs travelers to Terminal 1 Exit 12 and Terminal 2 Door 10. If you change terminals during a connection, allow extra time and expect to pass through TSA screening again when your route takes you back landside.
Airport live checks & travel tools
Use current local conditions, official live-status links and planning calculators before you travel. Airline gate, terminal and flight times can change; your carrier remains the final source for flight-specific details.
Live flight center
Check the airport's official flight board, then confirm any last-minute gate or timing change with the airline.
Current airport-area weather
Useful for planning your trip to the airport. This is model-based local weather, not an aviation METAR or an airline operational forecast.
Quick official checks
Open the source that matches the decision you are making right now.
When should I reach the airport?
A planning estimate based on flight type and common time buffers. Always increase the buffer for severe weather, major holidays, unusual airport alerts or airline instructions.
Connection-risk checker
This is a planning heuristic, not an airline minimum-connection-time rule. International arrivals that require U.S. entry processing, baggage claim and security can need substantially more time.
Parking cost estimator
Uses the airport-specific rates stored in this article's configuration. Rates can change; verify availability and final pricing on the official parking page before driving in.
Passenger pickup readiness
Landing time is not curb-ready time. Add time for taxiing, deplaning, baggage claim, customs when applicable and walking to the correct pickup zone.
What is the St Louis Lambert International Airport code?
STL is the three-letter IATA code for St. Louis Lambert International Airport. This is the code travelers normally use when booking a flight, searching an airline schedule, checking a boarding pass, reading a baggage tag or arranging an airport pickup.
KSTL is the corresponding ICAO identifier used in aviation charts, pilot systems, flight planning, weather products and other operational contexts. For normal passenger booking, STL is the code you need.
Is Lambert Airport the same as STL?
Yes. “Lambert Airport,” “St. Louis Lambert” and “St. Louis Lambert International Airport” refer to the same main commercial airport. The passenger-facing airport code is STL.
Why is the code STL instead of LAM?
The airport code reflects St. Louis. The Lambert name honors aviation pioneer Albert Bond Lambert, who helped establish the field in 1920. The airport says the property became known as Lambert Field in recognition of his role in early St. Louis aviation.
STL vs nearby airport codes
| Code | Airport | Use |
|---|---|---|
| STL | St. Louis Lambert International Airport | Main scheduled commercial airport for St. Louis |
| KSTL | ICAO identifier for STL | Aviation operations, charts and weather |
| CPS | St. Louis Downtown Airport | General aviation; not the primary airline airport |
| SET | St. Charles County Regional / Smartt Field | General and regional aviation |
| MCI | Kansas City International Airport | Kansas City, not St. Louis |
For broader code comparisons, use the U.S. airport codes list, the airport codes by state guide, or the separate Kansas City MCI airport guide.
Official STL pages to check before leaving
The STL airport code itself is stable. Flight times, parking availability, security waits, terminal assignments, construction impacts and ground-transport pickup locations can change much faster.
Which airlines use Terminal 1 and Terminal 2?
STL’s current airline directory places most A- and C-gate carriers in Terminal 1, while Southwest and the main scheduled transatlantic operators use Terminal 2. Airline and gate assignments can change, so verify the operating carrier on travel day.
| Airline / operation | Current terminal | Current gate area |
|---|---|---|
| Air Canada | Terminal 1 | A Gates |
| Alaska Airlines | Terminal 1 | C Gates |
| American Airlines | Terminal 1 | C Gates |
| Delta | Terminal 1 | A Gates |
| Frontier | Terminal 1 departures | C Gates; international arrivals may use T2 |
| Southern Airways Express | Terminal 1 | C Gates |
| United | Terminal 1 | A Gates |
| Southwest | Terminal 2 | E Gates |
| British Airways | Terminal 2 | E29 |
| Lufthansa | Terminal 2 | E29 |
| Charter flights | Varies | Check operator; international arrivals use T2 |
Terminal 1 vs Terminal 2 at St Louis Lambert
Terminal 1
Terminal 1 currently serves the A and C gate areas. It handles several large network and domestic carriers and contains two main passenger security checkpoints.
It also contains the main Airport Police/Lost & Found area, information booth, Children’s Play Port, USO location and two post-security lactation suites.
Terminal 2
Terminal 2 serves the E-gate area and is the current home of Southwest plus scheduled international operators including British Airways and Lufthansa.
The terminal contains STL’s active international-arrivals/Federal Inspection Services area.
How to move between terminals
Go to the shuttle pickup point
Use Terminal 1 Exit 12 or Terminal 2 Door 10 for the airport’s inter-terminal shuttle.
Allow more than the ride time
Airport parking shuttles operate on an 8–15 minute cycle, and inter-terminal movement can also involve walking, waiting and security. Do not plan a tight connection based only on driving time between buildings.
Plan for security again when necessary
The public terminal transfer is landside. A traveler who changes terminals for a connection may need to clear TSA screening again before reaching the next gate.
TSA security at STL
STL currently publishes three main checkpoint schedules. TSA controls these hours and can change them, so recheck the official security page before relying on a specific opening or closing time.
Terminal 1 · A Gates
Current published hours: 3:30 a.m.–7:00 p.m.
Serves Air Canada, Delta, United and charter activity.
Terminal 1 · C Gates
Current published hours: 3:30 a.m.–10:00 p.m.
Serves Alaska, American and Frontier.
Terminal 2 · E/F Gates
Current published hours: 3:30 a.m.–10:00 p.m.
Serves Southwest and international-charter activity.
Travelers who need extra screening help
STL directs passengers with disabilities, medical conditions, anxiety, autism or other special circumstances to TSA Cares. The airport recommends contacting TSA Cares at least 72 hours before travel when screening assistance is needed.
International arrivals and customs at STL
St. Louis Lambert is an international airport and currently lists nonstop international service, including transatlantic routes. Terminal 2 contains the active international-arrivals facility and Federal Inspection Services area used for applicable arriving international passengers.
International arrivals
Applicable international arrivals are routed through Terminal 2’s inspection and customs area before passengers enter the public arrivals side.
International gate area
The airport currently identifies Gate E29 with major scheduled international operations such as British Airways and Lufthansa.
STL parking rates and lot choices
STL parking rates changed effective July 1, 2026. The airport operates attached terminal garages and several Super Park lots. All official airport parking facilities are currently listed as open 24 hours a day, but capacity can vary.
| Parking | Current max rate | Access | Planning note |
|---|---|---|---|
| Terminal 1 Garage | $31 / 24 hr | Walk to T1 | Highest convenience for Terminal 1 |
| Terminal 2 Garage | $33 / 24 hr | Walk to T2 | Highest convenience for Terminal 2 |
| Lot A | $20 / 24 hr | Tunnel to T1 | Walkable Terminal 1 alternative |
| Lot B | $14 / 24 hr | Shuttle | Longer-stay value option |
| Lot C uncovered | $12 / 24 hr | 24-hour shuttle | Lower-cost option |
| Lot C covered | $15 / 24 hr | 24-hour shuttle | Weather-protected option |
| Lot D | $11 / 24 hr | Shuttle | Lowest current daily airport rate shown |
| Lot E | $27 / 24 hr + $10 reservation fee | Walk or shuttle to T2 | Reservation-only from July 1, 2026 |
Parking strategy before travel
Cell phone lots, curb pickup and drop-off
STL provides separate free cell phone waiting lots near Terminal 1 and Terminal 2. Vehicles must not remain stopped in the arrivals curb area while waiting for passengers.
Terminal 1 cell phone lot
10985 Lambert International Blvd., St. Louis, MO 63044
Wait there until your passenger confirms they have reached the pickup point.
Terminal 2 cell phone lot
9837 Air Cargo Road, St. Louis, MO 63044
Use this lot when collecting a traveler from Terminal 2.
Passenger pickup zones
The airport currently identifies passenger pickup at Terminal 1 outside Exit 15 on the Brown Level of the T1 Garage and at Terminal 2 outside Exit 16 near the International Arrival Center.
Uber, Lyft, taxis, rental cars, MetroLink and buses
Uber and Lyft
Terminal 1: Door 6 on the Departure Level.
Terminal 2: Door 12 on the Arrivals Level.
Match your app pickup point to the physical terminal before requesting the ride.
Taxis
T1: Door 14 to Garage Yellow Level.
T2: across from Door 12 in the Terminal 2 Garage.
STL currently lists a $4 airport-use fee per taxi pickup in addition to the metered/final fare.
Rental-car shuttles
Airport rental-car companies operate off-airport facilities and provide shuttle transportation.
T1 pickup: outside Exit 17 or Brown Level of T1 Garage via Door 15.
T2 pickup: outside Exit 12 on the inside curb of Arrivals Boulevard.
MetroLink
T1: Exit Door 1 on the ticketing level, east of the ticket counters.
T2: Exit Door 12 through the parking garage.
Advance fare is required; current airport guidance points travelers to station vending machines or the Transit app.
Bus Port
The airport Bus Port is south of Terminal 1 on Lambert International Boulevard. It serves ground transportation including Greyhound. The airport shuttle connection uses Terminal 1 Door 12 and Terminal 2 Door 10.
Wheelchair help and accessible travel at STL
STL states that airport facilities are designed to comply with ADA requirements. Airline wheelchair assistance is provided for passengers who request it, and the airport recommends contacting the airline in advance.
Wheelchair assistance
Request wheelchair service through the operating airline before travel. Airline staff can assist passengers through the airport process.
Accessible MetroLink
Both terminal MetroLink stations have elevators, and platforms include accessibility features for passengers using wheelchairs.
Airport ADA contact
For airport facility accessibility questions, STL lists its ADA/Title VI contact number as 314-426-8094.
Service-animal relief areas
STL currently lists service-animal relief areas near A16, C24, E4 and E40, plus exterior areas near Terminal 1 Exit 6 and Terminal 2 Exit 10. Use the current terminal/accessibility map for the nearest location.
Lactation rooms, children’s area, USO and information help
Lactation suites
STL has three post-security lactation suites near A10, C9 and E33. The airport describes them as ADA-compliant spaces with sinks, power outlets, counters and seating.
Children’s Play Port
The Children’s Play Port is in Terminal 1 near C3. It can be useful when families have extra time after clearing security.
USO
The USO serves eligible military visitors and is located in Terminal 1 baggage claim near Carousel 6. Official ID is required.
Airport information
The main information booth is in Terminal 1 between baggage-claim carousels 4 and 5. Current posted hours are 7:00 a.m.–11:00 p.m. daily, with phone support at 314-890-1333.
Lounges
STL currently lists the American Airlines Admirals Club in the C Concourse and Wingtips in Terminal 2 near E31. Access rules and operating hours are controlled by the lounge provider and can change.
No unattended baggage storage
The airport’s FAQ states that STL does not provide public lockers or storage for unattended personal belongings. Plan hotel storage, a rental car, or another permitted alternative if you need to hold luggage between trips.
What to do if you lose something at STL
Lost on the airplane
Contact the operating airline first. Aircraft cabins and airline-controlled baggage areas are generally handled by the carrier.
Lost at security
Items left in TSA screening areas are handled through TSA’s lost-and-found process rather than the general airport police lost-and-found desk.
Lost in the terminal
STL Airport Police maintains Lost & Found in Terminal 1 near Door 18. The current posted phone number is 314-890-1370, with listed hours of 9:00 a.m.–4:00 p.m..
Where is St Louis Lambert International Airport?
The official airport administration address is 10701 Lambert International Blvd., St. Louis, MO 63145-0212. STL serves the St. Louis metropolitan region, including travelers from Missouri and nearby Illinois.
Driving to Terminal 1
Follow airport roadway signs for Terminal 1 before entering the final terminal road split. Terminal 1 parking, arrivals and departures have separate approaches.
Driving to Terminal 2
Follow Terminal 2 signs rather than simply stopping navigation at the generic airport address. Terminal 2 has its own garage, curb and transport zones.
STL’s consolidated-terminal program
St. Louis Lambert is progressing with a major long-term program intended to consolidate today’s Terminal 1 and Terminal 2 operations into a modernized terminal complex. Current planning material describes a future terminal of up to 62 gates and associated baggage, security, customs, utility and airfield work.
That future project does not mean today’s two-terminal layout is obsolete. For current travel, Terminal 1 and Terminal 2 assignments, pickup zones, parking and security checkpoints remain the information that matters.
Before leaving for STL
Common STL travel problems and what to do
You arrived at the wrong terminal
Use the free terminal shuttle. Do not try to walk along airport roadways between Terminal 1 and Terminal 2.
Your rideshare cannot locate you
Check both the terminal and door number. T1 ride-app pickup uses Door 6 on Departures; T2 uses Door 12 on Arrivals.
Your preferred parking lot is unavailable
Check the airport’s live parking page and switch to another official facility before circling the terminal roads.
Your flight is delayed or cancelled
Use the operating airline for rebooking, refunds, baggage instructions and connection decisions. The airport cannot replace the airline’s passenger-service role.
You need wheelchair help
Contact the airline before travel. If you arrive without prearranged assistance, ask the airport information service for help contacting the appropriate provider.
You lose something
Identify where it was lost first: aircraft = airline, TSA checkpoint = TSA, general terminal area = airport Lost & Found.
St Louis Lambert airport code FAQs
What is the St Louis Lambert International Airport code?
The IATA passenger code is STL. The ICAO aviation identifier is KSTL.
Is Lambert Airport the same as STL?
Yes. Lambert Airport is a common shortened name for St. Louis Lambert International Airport, whose passenger-facing code is STL.
Does STL have Terminal 1 and Terminal 2?
Yes. STL currently operates two passenger terminals. Terminal 1 serves A and C gate areas, while Terminal 2 serves the E-gate area and the airport’s active international-arrivals facility.
Can I walk between Terminal 1 and Terminal 2?
No public walking route currently connects the two terminals. Use the airport terminal shuttle between Terminal 1 Exit 12 and Terminal 2 Door 10.
Where does Southwest fly from at STL?
Southwest currently operates from Terminal 2 and the E-gate area. Always verify the specific gate on the day of travel.
Where do British Airways and Lufthansa operate at STL?
STL’s current airline directory places British Airways and Lufthansa in Terminal 2, with scheduled international operations using the E29 area.
Where do Uber and Lyft pick up at STL?
Terminal 1 ride-app pickup is at Door 6 on the Departure Level. Terminal 2 ride-app pickup is at Door 12 on the Arrivals Level.
Does MetroLink go directly to STL?
Yes. MetroLink stations serve both terminals. Terminal 1 access is at Door 1 on the ticketing level; Terminal 2 access is through the parking garage from Door 12.
How much is STL parking?
Current July 2026 daily maximums range from $11 at Lot D to $33 at the Terminal 2 Garage. Lot E is reservation-only at $27 per day plus a $10 reservation fee. Check current availability and rates before travel.
Does STL have free cell phone waiting lots?
Yes. STL has free cell phone waiting areas near both terminals. Vehicles must not remain stopped in the arrivals areas while waiting for passengers.
Does STL have customs for international arrivals?
Yes. Terminal 2 contains STL’s active international-arrivals and Federal Inspection Services facilities for applicable arriving international passengers.
Where is STL Lost and Found?
General airport Lost & Found is handled by Airport Police in Terminal 1 near Door 18. Items lost on aircraft should normally be reported to the airline, while TSA handles items lost at security screening.
Does STL have lactation rooms?
Yes. STL currently lists post-security lactation suites near Gates A10, C9 and E33.
What is the airport address?
The official airport administration address is 10701 Lambert International Blvd., St. Louis, MO 63145-0212.
Sources used for this STL guide
Reviewed against current official airport, FAA and Metro Transit information in September 2026. Live flights, gates, airline assignments, TSA conditions, parking availability, construction, fares and transportation schedules can change and should be rechecked immediately before travel.