Frontier Airlines has entered a new market, announcing that it will begin serving Luis Muñoz Marin Airport in Puerto Rico.

Denver-based Frontier said it will fly to Puerto Rico from Orlando, Florida and Philadelphia beginning June 11.

“Today’s announcement is definitely another step forward for Puerto Rico, and it clearly conveys our message that we are open for business. … Puerto Rico continues to offer attractive opportunities for astute businesses as evidenced by Frontier’s decision to enter…