STL Airport Shuttle Between Terminals: 2026 Guide

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The STL airport shuttle between terminals is a free, 24-hour service that connects Terminal 1 and Terminal 2 at St. Louis Lambert International Airport — running every 8 to 15 minutes around the clock. There is no walking route between the two terminals, so the shuttle is the only way to switch terminals without leaving the airport. It costs nothing to ride and requires no reservation.

• Free and 24/7: The inter-terminal shuttle runs every 8-15 minutes at all hours, every day of the year.
• No walking alternative: Terminals 1 and 2 are not connected on foot — the shuttle is your only landside option.
• Terminal 1 serves American, Delta, United, Alaska, Air Canada, Frontier, Southern Airways Express, and charter flights (Concourses A and C).
• Terminal 2 serves Southwest, British Airways, Lufthansa, and international charter arrivals (Concourse E).
• Park in the right lot: Lots B, C, and D serve both terminals via the Super Park shuttle. T1-specific lots include the T1 Garage and Lot A; T2-specific lots include the T2 Garage and Lot E.
• Allow extra time: St. Louis Airport Authority advises adding 30 minutes to your arrival time when parking — add more if you also need to change terminals.

Does STL Lambert International Airport Have a Shuttle Between Terminals?

Yes. St. Louis Lambert International Airport operates a free inter-terminal shuttle that runs 24 hours a day, 7 days a week, connecting Terminal 1 and Terminal 2. According to official airport data published on flystl.com, the shuttle departs every 8 to 15 minutes. There is no pedestrian walkway linking the two terminals, so this shuttle is the only practical landside connection. Whether you missed a flight, need to meet someone at a different terminal, or are connecting between airlines, the STL airport shuttle between terminals is your go-to option.

The shuttle is operated by the St. Louis Airport Authority, the same body that runs the Super Park on-airport lots. It is separate from the Super Park lot shuttles, though both share the same frequency window. You do not need a boarding pass or parking ticket to ride — anyone in the terminal can use it.

Planning to park near STL before your trip? Compare STL airport parking options from $6.50/day on Triply — including lots that serve both terminals.

Which Airlines Are in Terminal 1 vs. Terminal 2 at STL?

Knowing your terminal before you arrive saves time and prevents confusion. Here is the full breakdown, based on current airline assignments published by flystl.com (verified October 2026).

The split matters most for two groups: travelers connecting from a Southwest flight to a legacy carrier (or vice versa), and anyone dropping off or picking up passengers flying different airlines. If your party is split between Terminal 1 and Terminal 2, the free shuttle is the fastest way to regroup. For a full breakdown of parking by terminal, see our guide to STL Terminal 1 vs Terminal 2 parking — it covers which lots connect directly to each terminal.

How Do You Ride the STL Inter-Terminal Shuttle? Step-by-Step Guide

The process is straightforward. Follow these steps to use the STL airport shuttle between terminals without any guesswork.

1. Find the shuttle pickup area. In Terminal 1, follow signs for ground transportation or the inter-terminal shuttle inside the terminal. In Terminal 2, the pickup point is on the ground-level roadway. Signs inside both terminals direct you to the correct door.
2. Check the STL terminal map if you are unsure which exit to use. The map shows shuttle stop locations within each building.
3. Wait for the shuttle. Service runs every 8 to 15 minutes, 24/7. You will rarely wait more than 15 minutes at any hour.
4. Board and ride. The shuttle travels directly between the two terminals. No stops in between — the ride itself is short, typically under 5 minutes in transit.
5. Exit at your destination terminal. Follow in-terminal signs to your airline's check-in area or gate concourse.
6. Clear security at the correct terminal. Security checkpoints are terminal-specific. After switching terminals, you will need to go through the checkpoint for that terminal if you are airside. Review TSA security screening guidelines before your trip so you know what to expect.

If you hold TSA PreCheck, check which terminal's checkpoint offers a PreCheck lane on the day of travel. TSA PreCheck enrollment can cut wait times significantly — worth having if you regularly fly through STL.

How Long Does It Take to Get Between Terminals at STL Lambert?

Total transit time between Terminal 1 and Terminal 2 is roughly 10 to 20 minutes from door to door. That breaks down as follows: up to 15 minutes waiting for the next shuttle departure, plus a short ride of around 5 minutes or less. The airport does not publish an exact distance between the two terminals, but the shuttle route is brief.

Budget conservatively. If you have a connecting flight that requires switching terminals, allow at least 30 to 45 minutes between your arrival gate and your departure gate. That covers the walk to the shuttle stop, the wait, the ride, re-entry through security, and reaching your new gate. Tight connections — under 45 minutes with a terminal change — carry real risk at STL. Contact your airline if you are worried about a short layover that crosses terminals.

Is the STL Terminal Shuttle Free, and When Does It Run?

The STL airport shuttle between terminals is completely free and operates 24 hours a day, 365 days a year. According to the St. Louis Airport Authority, it runs every 8 to 15 minutes with no breaks in service. There is no ticket, no app to download, and no registration required. Simply show up at the designated pickup area and board.

This is distinct from the Super Park lot shuttles, which also run 24/7 every 8 to 15 minutes but serve parking lots A through E rather than the inter-terminal route. If you need to track the lot shuttles, live shuttle tracking is available on flystl.com via Passio GO. The inter-terminal shuttle does not have a separate tracking page but maintains consistent frequency throughout the day and night.

What Are Your Other Options for Getting Between STL Terminals?

The free shuttle is the best option for most travelers. But there are a few alternatives worth knowing.

• Rideshare (Uber or Lyft): You can request an Uber or Lyft from the designated rideshare pickup zone at one terminal and be dropped at the other. This adds cost and may not be faster than the free shuttle during busy periods.
• MetroLink Red Line: Both terminals have dedicated MetroLink stations — Lambert Airport Terminal 1 and Lambert Airport Terminal 2. You could technically ride one stop between them. However, this requires exiting to the rail platform, purchasing a fare, and re-entering — making it slower and costlier than the free shuttle for this purpose alone.
• Driving yourself: If you have a rental car or personal vehicle, you can drive between the terminal loop roads. Use I-70 Exit 238A (Lambert International Blvd westbound) for Terminal 1 and Exit 235C (Cypress Road eastbound) for Terminal 2. This is only practical if you already have a car running — not a realistic option mid-transit.
• Walking: There is no pedestrian path between terminals. Do not attempt to walk — it is not safe or permitted.

The free inter-terminal shuttle wins on every metric: cost, speed, and simplicity. Use the alternatives only when circumstances demand it.

How Does Parking at STL Affect Which Terminal You Use?

Parking lot placement directly affects how much extra walking — or shuttling — you do at STL. Choosing the right lot for your terminal can save real time on both ends of your trip.

Here is how the on-airport Super Park lots break down by terminal, based on published data from the St. Louis Airport Authority (rates effective July 1, 2026, tax included):

Lots B, C, and D are the most flexible — their Super Park shuttles serve both terminals, so you are not locked in. If you are unsure which terminal you will use, or if your group has flights at different terminals, these lots give you the most flexibility. For a deeper look at what each lot offers, the STL airport parking rates guide compares every lot side by side with full rate details.

Off-site hotel lots near STL — bookable through Triply from $6.50/day — also provide free shuttles that drop at both terminals. That flexibility makes them a strong pick when you need access to either terminal without paying premium on-airport rates.

ADA and Accessibility: How to Get Between STL Terminals with Limited Mobility

The STL inter-terminal shuttle is designed to accommodate passengers with limited mobility. According to the St. Louis Airport Authority's accessibility accommodations page, STL provides services for passengers who need extra assistance navigating the airport.

If you require wheelchair assistance or have a mobility limitation, contact your airline before your trip. Airlines are responsible for providing wheelchair service within their terminal, including transport to the inter-terminal shuttle pickup area. Once aboard the shuttle, drivers assist passengers with boarding as needed. Notify your airline at check-in or when booking your ticket so they can coordinate assistance at both ends of your terminal transfer.

For passengers using personal wheelchairs or mobility devices, the shuttle vehicles are accessible. Arrival and departure areas at both terminals are also accessible by ramp or lift, without the need to use stairs. If you have specific questions about accessible inter-terminal transit, the airport's contact line is available through the flystl.com contact page.

What About the STL Terminal Construction — Will the Shuttle Change?

STL is in the early stages of a ~$3 billion single-terminal redevelopment. As of spring 2026, the design is roughly 30% complete, with a groundbreaking targeted for 2027 and a projected opening in 2032, according to reporting by First Alert 4 in April 2026. The new consolidated terminal — planned for up to 62 gates on the Terminal 1 site — would eventually eliminate the need for inter-terminal shuttles entirely.

Until then, expect the current two-terminal setup to remain in place through at least 2027. No major parking closures are announced for 2026. Concourse A in Terminal 1 is slated to close around August 2027 when new Concourse C extensions and a new Concourse D open. Terminal 2 is slated to close in November 2031. The STL airport shuttle between terminals will remain your primary way to move between buildings until the new terminal opens. Check flystl.com's newsroom before each trip for any updates as the project progresses.

If you want to plan your parking before your next STL trip, browse available STL parking options on Triply — compare lots from $6.50/day that serve both terminals with free shuttle service included.