Phoenix Sky Harbor runs two passenger terminals, Terminal 3 and Terminal 4, and they are not connected inside security. If your itinerary splits between them, the transfer happens landside on the free PHX Sky Train, which means planning for a re-screen as well as the ride.
Where the Sky Train stations are
The PHX Sky Train is free, runs 24 hours a day and trains arrive every few minutes. At Terminal 4 the station is on Level 3, and you can walk from the platform straight to the security checkpoint. At Terminal 3 the station is on Level 5; you reach it by taking the escalators in the Ticketing area up to Level 4 and then continuing to the boarding platform. Both stations are built for travelers with luggage.
How the transfer works
Because the Sky Train runs outside security, a Terminal 3 to Terminal 4 transfer means exiting the secured area, riding the train, and clearing security again at the other terminal. Build that into your connection time: the train ride itself is short, but the walk, the wait for a train and a second security line are what actually consume the clock. Always confirm your departure terminal on your boarding pass or the airline's airport listing, since carriers are assigned by concourse and assignments can shift.
Where the other stops fit
The same train serves more than the terminals. Heading east it links the 24th Street Station, East Economy Parking, the Rental Car Center and the 44th Street Station, where you can connect to Valley Metro Rail. Greeters who would rather avoid terminal curbside traffic can meet arriving passengers at the 24th Street or 44th Street stations instead.
If a shuttle is picking you up
Give your driver the terminal number, not just the airline. A Sky Harbor airport shuttle can meet you on the arrivals level of the correct terminal, and the Phoenix shuttle service and Tempe shuttle pages cover pickup patterns in the surrounding areas.
Frequently asked questions
Are Terminal 3 and Terminal 4 connected at Phoenix Sky Harbor?
They are connected landside by the free PHX Sky Train, not inside security, so a transfer means re-clearing security.
How long does it take to get between Terminal 3 and Terminal 4?
The train ride is only a few minutes. Allow considerably more once you count the walk to the station and a second security screening.
Is the PHX Sky Train free?
Yes. The PHX Sky Train is free and operates 24 hours a day.
