Washington, D.C. — Philadelphia flights are offered by 4 airline(s) including Southwest Airlines, Spirit Airlines, JetBlue Airways, Delta Air Lines.
The cheapest one-way flights are usually available on a Tuesday. The average price of a one-way flight is currently $ 127.92. The lowest price is $ 95.63 departing on local with Spirit Airlines. Washington, D.C. - BWI is the cheapest airport for flights Washington, D.C. – Philadelphia.