Chicago O'Hare (ORD)
O'Hare boasts two play areas for traveling tots. In Terminal 2, Chicago Children's Museum's Kids on the Fly exhibit offers aviation-related educational activities. In Terminal 5, the Play it Safe exhibit, sponsored by the Chicago Fire Department and Chicago Children's Museum, teaches tots about fire and home safety. Both areas are completely handicap-accessible.
Got more time to kill? The Airport Transit System is a fun (and free) tram ride that connects terminals. Kids will also love checking on the 72-foot-long Brachiosaurus model in Terminal 1 and the replica World War II fighter plane in Terminal 2.