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Why is there no Terminal 4 at O'Hare Airport?

O'Hare is missing Terminal 4.


At O’Hare Airport, there are Terminals 1, 2, 3 and 5. What happened to Terminal 4? —LB, Edgewater

“Terminal 4 became a temporary location for the international terminal in 1984,” says Gregg Cunningham, spokesman for the Chicago Department of Aviation. “When a new international terminal opened in 1993, officials decided to change the number to 5 to avoid any confusion.” The old Terminal 4, located in the ground level of O’Hare’s parking garage, now serves as the airport’s bus-shuttle depot. The number isn’t retired, though; eventually, Cunningham says, a new building will be christened Terminal 4.

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