The US Department of Transportation fined JetBlue over chronically delayed flights.Nicolas Economou/NurPhoto via Getty ImagesThe US Department of Transportation hit JetBlue with a $2 million fine for delayed flights.The DOT said the airline's unrealistic flight schedules were deceptive and anticompetitive.Half of the $2 million fine is set to go toward compensating JetBlue customers.The Department of Transportation said on Friday that it was fining JetBlue Airways $2 million for operating chronically delayed flights.It said the first-of-its-kind penalty followed an investigation that found that JetBlue promised its customers unrealistic schedules that didn't reflect actual flight departure and arrival times on four routes between its bases in New York and Florida and destinations in North Carolina and Connecticut.