Here's what PHL's largest carriers are saying about the return of 737 Max flights

The Federal Aviation Administration lifted its 20-month order prohibiting the Boeing 737 Max from flying passengers Wednesday. Now airlines are thinking about how they want to integrate the beleaguered aircraft back into their fleets. The two largest carriers at Philadelphia International Airport — American Airlines Group, Inc. and Southwest Airlines Co. — anticipate different timelines for reintroducing the aircraft. American envisions the first 737 Max passenger flight before 2020 ends, while…