Into Flight sale is live, with domestic tickets starting as low as $34 for Saver$ Club members and $57 for non-members.

Spirit Airlines will launch 15 new and resuming flight destinations out of Detroit this spring and summer. The move will expand the budget airline's routes from Detroit to 40 destinations. Michigan ...

Spirit Airlines will launch 15 new and resuming flight destinations out of Detroit this spring and summer. The move will expand the budget airline's routes from Detroit to 40 destinations.