A regional airline will discontinue Florida flights.

Provincetown-Boston Airlines plans to end all Florida flights on May 1 to concentrate on the Northeast, the area in which it started, a PBA spokeswoman said. The regional commuter airline, owned by Texas Air Corp., said it will concentrate on serving Massachusetts’ Cape Cod, with flights from Newark, N.J., and Boston. PBA has about 50 daily Florida flights, serving Sarasota, Miami, Key West, Naples, Fort Myers, Marco Island and Marathon. It employs about 250 people in Florida.