In the early 1990s, Delta Air Lines invested over $500 million to develop the current terminal facility (known then as Terminal 3) in Cincinnati to support their hub operation, which at its peak was Delta's second-largest hub.

[1] Constructed and installed by the Otis Elevator Company using its "Hovair" hovertrain technology, at the time of its construction this $16.7 million facility was only the sixth of its kind installed by Otis throughout the world.

Delta downsized the hub in the late 2000s, which led to the closure of Concourse A in 2010.

Upon the closure, the people mover operated with only one train, which then skipped the Concourse A station.

[4] When Concourse A reopened for other airlines after the closure of Terminal 2 in 2012, the people mover was restored to its original service pattern with both trains operating.