If connecting between domestic Terminals 1, 2 & 3, you DON’T have to leave the secured side and take the ATS, you can simply follow the overhead signage to guide you between all domestic terminals. To get between Terminal 5 and Terminals 1, 2 & 3, take the Airport Transit System (ATS).
While Terminals 1, 2 and 3 have pedestrian connections on the secure side of the airport, Terminal 5 does not.
The Terminal Transfer Bus run every 15 minutes between the hours of 11:30 a.m. and 9:30 p.m. The service has two routes, with one route operating between Terminal 1 and Terminal 5, and another route operating between Terminal 3 and Terminal 5. Both bus routes transport passengers in each direction
Terminal 1 Pick-Up Locations
Terminal 3 Pick-Up Locations
Terminal 5 Pick-Up Location
The secure airside bus service dramatically improves convenience for passengers arriving on a flight into Terminals 1, 2, and 3 and connecting to a flight that departs from Terminal 5, or vice versa.
Passengers needing to connect between the core terminals and Terminal 5 between 9:30 p.m. and 11:30 a.m. will need to exit security and board the Airport Transit System (ATS), then be rescreened at a TSA checkpoint.
Connecting passengers arriving at Terminal 5 will find a significantly improved facility, with 25% more gate capacity, new dining and retail locations, and a new Delta Sky Club lounge. For more information, visit ORD21.com.