July: Los Angeles - Chicago (with return) from $257 with Spirit Airlines
April: New York - Chicago (with return) from $89 with Spirit Airlines
November: Fort Lauderdale - Chicago (with return) from $190 with Spirit Airlines
October: Boston - Chicago (with return) from $75 with Spirit Airlines
September: Boston - Chicago (with return) from $67 with Spirit Airlines
September: Houston - Chicago (with return) from $70 with Spirit Airlines