WASHINGTON, DC (WUSA) -- The Transportation Department reports the number of delays on the tarmac were up in the month of July.
The DOT says 28 planes were stuck on the ground for more than three hours.
Passenger complaints were up in July as well.
The agency says it received nearly 2500 of them, that's up 5-0 percent from June.
Airlines can be fined nearly $28,000 per passenger if a flight is stuck on the tarmac for more than three hours.