A4A/A4B were the gates that TZ used for their 757-300s/200s. They were the only gates that could accommodate them before the A Concourse was fully completed. It was fun taking off and landing at MDW in those birds. At least they redid the waiting area and put services out there. Used to be just a really long hallway that split into two jetways. They should put the charter airlines out there and move WN over to the C gates.