Spirit Airlines, which now flies from Philadelphia to five cities, will add daily nonstop flights to Detroit and Fort Lauderdale, Fla., starting April 29.

The Miramar, Fla.-based carrier, which offers lower base airfares but charges passengers extra for virtually everything including a carry-on bag, announced last month it will begin a nonstop daily flight from Philadelphia to Los Angeles International Airport, beginning April 14.

"Our customers are the beneficiaries of Spirit's growth and expansion of services," Philadelphia Internaetional Airport CEO Mark Gale said Wednesday. "As our airlines create more choices in scheduling, passengers often have more affordable travel options."

Spirit flies from Philadelphia to Atlanta, Chicago, Dallas-Fort Worth, Las Vegas, and Myrtle Beach, S.C. The new flights to Detroit and Fort Lauderdale are available for purchase immediately, the airline said.

Spirit operates more than 375 daily flights to 56 destinations in the United States, Latin America, and the Caribbean.