But during slower travel times, many spots sit empty.
Now officials at the airport are turning to technology to help make the best possible use of the 41,851 spaces at the Manhattan-size aviation hub.
With more than 17,000 acres of land, DFW Airport is larger than Manhattan in New York City.
The airport board recently approved a $315,093 contract with a Manchester, England, firm known as ADVAM Ltd. to develop a system to help travelers find available parking spaces using a phone application.
That may not sound cutting-edge — Who doesn’t use an app these days? — but what DFW Airport has in mind is ultimately switching to a variable pricing system.
Customers would be able to buy parking in advance of their trip, possibly at a discount, as a way for DFW to fill unused parking spaces.
“Variable pricing would allow us to maybe on weekends provide cheaper parking options when the garages aren’t full, and it just gives us a lot more flexibility to price according to the market,” said Sean Donohue, DFW’s chief executive officer. “A lot of airports, especially in Europe, do it. It would be completely by supply and demand. It would allow people to take advantage of off-peak times. That would be good for us as well because we would fill a slot that would have gone empty anyways.”