American Airlines, Delta Air Lines, Frontier Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, and United Airlines have made separate applications to the US Department of Transportation (DOT) to obtain some of the slot exemptions for service to Washington National from domestic airports within or beyond the 1,250-mile (2,012-kilometre) perimeter for nonstop flights to/from the airport.

Last month, the DOT published the allocation system for these ten slots, saying it would grant the…

Source: ch aviation
Read more: US carriers submit applications for Washington Nat’l slots