Southwest Airlines has gotten off to a slow start in its service from Flint's Bishop International Airport.

According to MLive, in its first full month of flying from Bishop, Southwest flights to Baltimore and Orlando have taken off with less than half of its available seats filled.

Airlines say they need at least 70 percent of available seats filled to make money on flights. Bishop Airport Director Jim Rice said of Southwest "the numbers there right now are not good enough. Historically they to take a little while to ramp up, (and) we're going to do a little advertising."

Southwest began flying in Flint after it purchased AirTran Airways more than two years ago. AirTran flights out of Flint were mostly to Atlanta. They were replaced by Southwest service to Baltimore. The airline will begin flights from Flint to Las Vegas next month.