At the airport
How to navigate the biggest US airports without getting lost
By the TSA Wait Times team · Updated · Published June 2026
ATL's underground Plane Train runs every 2 minutes for free, DFW's Skylink covers all 5 terminals airside at no charge, JFK's AirTrain costs $8.75 per off-airport trip(raised from $8.50 in March 2026), and LAX still has no passenger-facing internal tram as of June 2026. Knowing each airport's system before landing can save 30–45 minutes on a tight connection.
ATL (Hartsfield-Jackson): Take the Plane Train — it runs every 2 minutes underground
The Plane Train is the fastest way to move between ATL's seven concourses (T, A, B, C, D, E, F). It runs underground, is free, and arrives every 2 minutes — making it the most reliable intra-airport transit system at any major US hub. The critical planning note: allow at least 30 minutes for a Terminal-to-Concourse-F connection, which covers the full length of the airport. Concourse F handles most international departures, so international connections require the most buffer time.
- Free — no ticket, no app needed; board at any underground platform
- Concourse order: T → A → B → C → D → E → F (linear, not a loop)
- Allow 30 min for T→F; domestic connections (e.g., A→C) take 10–15 min
- Add 5–10 min for gate walks at each end — ATL concourses are long
- ATL SkyTrain (separate system) connects the Domestic Terminal to the Rental Car Center and international arrivals — do not confuse it with the Plane Train
DFW: Skylink is free and airside — but Terminal Link is your only option before security
DFW's Skylink automated tram connects all five terminals (A, B, C, D, E) entirely airside and is free with no ticket needed. Trains arrive every 2 minutes, with an average ride of 5 minutes and a maximum end-to-end journey of 9 minutes between the farthest stations. The key constraint: Skylink is only accessible after clearing security, so passengers who need to reach a different terminal before check-in must use the Terminal Link bus (also free) or drive the perimeter road — either way plan 15–20 minutes. DFW is the largest US airport by land area, which makes off-airside transfers significantly longer than they look on a map.
- Skylink: free, airside only, every 2 minutes, 24 hours/day
- Terminal Link bus: free shuttle for outside-security terminal-to-terminal transfers
- Average Skylink ride: 5 min; end-to-end maximum: 9 min
- DART Silver Line now provides direct rail from DFW Terminal A to downtown Dallas and Plano (opened 2024) — a new public transit option for city connections
- DFW Terminal F is in planning for a 2027 opening; Skylink guideway already includes a stub station
LAX: No inter-terminal tram yet — know the TBIT airside bridge and budget 45–60 minutes
As of June 2026, LAX does not have a passenger-facing automated people mover. The SkyLink APM (which will connect all terminals to the Consolidated Rent-A-Car facility and the LAX/Metro Transit Center) completed full-speed service testing in April–May 2026 and was targeting a summer 2026 passenger launch after contract-related delays pushed the original 2024 opening. Until it opens, changing terminals at LAX means exiting security, riding the free inter-terminal shuttle bus on the lower (arrivals) roadway, and re-clearing security — realistically 30–60 minutes depending on TSA queues. The one airside shortcut: Tom Bradley International Terminal (TBIT) connects airside to Terminals 4, 5, 6, and 7, so passengers on those terminals can switch without re-screening.
- TBIT ↔ T4/T5/T6/T7 airside connection: no re-screening required
- T1, T2, T3 require exiting security for any cross-terminal connection
- Free inter-terminal shuttle runs the lower (arrivals) roadway — look for green buses
- LAX SkyLink APM: in service testing as of May 2026; no confirmed passenger open date at time of writing
- Budget 60 min minimum for any LAX connection that involves re-clearing security at peak hours
ORD (O'Hare): Color-coded underground walkways connect domestic concourses — T5 is the exception
O'Hare organizes its domestic terminals (T1, T2, T3) around a color-coded underground walkway system that allows connections without exiting security or re-screening. A dedicated tunnel links T2 and T3 directly. The practical catch: Terminal 5 (international) has no underground link to the domestic side — passengers arriving at T5 must clear customs, then take a free shuttle bus to reach T1, T2, or T3. The CTA Blue Line station sits under T2/T3 and provides direct rail service to downtown Chicago in about 45 minutes.
- Blue/Red/Green underground hallways: connect T1 (Concourses B/C) and T2/T3 (Concourses F/G/H/K) without re-screening
- T2–T3 tunnel: direct pedestrian link; quickest path for American/United transfers between those terminals
- T5 (International): shuttle bus required to reach domestic terminals after customs
- CTA Blue Line: direct rail from T2/T3 — ~45 min to downtown Chicago
- Allow 20–30 min for cross-terminal domestic connections; 35+ min if starting or ending at T5
JFK: AirTrain ($8.75 as of March 2026) is mandatory — every terminal is its own island
JFK's terminals are not physically connected to each other — the AirTrain is the only way to move between them without exiting to the street. In March 2026, the AirTrain fare increased from $8.50 to $8.75 per trip, paid via OMNY or MetroCard at the off-airport Jamaica and Howard Beach stations. Moving between terminals within the airport loop is free as long as you do not exit at those off-airport stations. Allow 15–20 minutes for any terminal-to-terminal AirTrain ride, plus gate walking time. Terminal 4 is JFK's international hub and the largest active terminal; Terminal 7 is in operational wind-down.
- AirTrain fare: $8.75 (increased March 2026) — charged only at Jamaica and Howard Beach off-airport exits
- Inter-terminal transfers within the airport loop: free
- T4: international hub — American, Delta, and most foreign carriers use it
- T7 is in wind-down/transition — verify your terminal assignment before departure
- Allow 30–40 min total connection time at JFK (AirTrain + gate walk at both ends)
Quick comparison: how each major US airport moves you between terminals
Use this table to calibrate your connection window. Free systems with high-frequency service (ATL, DFW) support tighter connections; LAX's lack of an internal tram and JFK's terminal-island layout require the most conservative buffers.
| Airport | Inter-terminal system | Recommended connection buffer |
|---|---|---|
| ATL | Plane Train (free, underground, every 2 min) | 25–30 min domestic; 30 min for T→F |
| DFW | Skylink (free, airside, every 2 min) | 25–30 min |
| LAX | Shuttle bus on lower roadway (free, no tram) | 45–60 min if re-security required; 20 min TBIT↔T4–7 |
| ORD | Color-coded underground walkways (free, domestic) | 20–25 min domestic; 35 min from T5 |
| JFK | AirTrain ($8.75 off-airport; free inter-terminal loop) | 30–40 min |
Pro tips that work at every large US airport
A few universal tactics cut transit time at any complex hub. Download the official airport app before departure — ATL, DFW, LAX, ORD, and JFK all offer live gate maps and terminal navigation. Gate changes happen most often in the 30 minutes before boarding, so keep airline notifications active and check the board again after you land. At airports with people movers, position yourself in the car that aligns with your exit direction — ATL and DFW post concourse diagrams at each platform.
- Check TSA wait times at your destination terminal via tsawaittimes.app or the TSA app before heading to security after a terminal switch
- At LAX: use the lower (arrivals) roadway for shuttle pickup; upper (departures) level is for drop-off only
- At JFK: if your checked bags are on a same-airline connection, they transfer automatically — you do not need to collect and re-check
- At ATL: the escalators closest to the Plane Train doors are fastest during off-peak hours; stairs are often quicker at peak
- At ORD: flights from T5 require clearing back through security even on a domestic connection — build in extra time
For the full picture on how early to plan the whole journey, see how early to get to the airport and TSA PreCheck vs CLEAR vs Global Entry — a trusted traveler program can shorten that security re-screen at LAX or JFK by 10–15 minutes.
More questions about connecting at US airports:
How much time should I allow for a connection at a major US airport?
The safest minimum buffers are: ATL 25–30 min, DFW 25–30 min, ORD 25–30 min domestic (35 min from T5), JFK 35–45 min, and LAX 60 min if re-clearing security is required. Airline-published minimum connection times are shorter because they assume no delays and perfect execution — build in extra cushion whenever possible.
Does the DFW Skylink run 24 hours?
Yes — DFW Skylink operates 24 hours a day, 365 days a year, with trains arriving every 2 minutes during normal hours. Between midnight and 5 AM one track may be taken offline for scheduled maintenance, which can slightly extend wait times, but service is never fully suspended.
Data verified . Sources: DFW Airport — Connect; Wikipedia: DFW Skylink; Port Authority — AirTrain fare update.
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