Bookable via Google Flights or on Priceline
ORD-BWI $42 dates:
November: 1, 2, 4, 7, 11, 14
BWI-ORD $42 dates:
August: 22, 23, 29, 30
September: 3, 4, 5, 6, 7, 12, 13, 14, 18, 19, 20, 25, 26, 27, 28
October: 1, 2, 3, 4, 5, 10, 11, 12, 17, 18, 19, 24, 25, 26, 29, 30
November: 1, 2, 3, 4, 7, 11, 14
