Southwest Airlines will stop flying to these 4 airports and reduce service to others as Boeing troubles bite

The changes, revealed in Southwest’s latest earnings report, come even as airlines and passengers are anticipating a busy summer travel season.

It’s been a horrible year for plane maker Boeing. But Boeing’s troubles are quickly becoming troubles for its major customers, which in the United States include United Airlines and Southwest Airlines. Because Boeing is now facing increased scrutiny by regulators, production of its planes has slowed, which means deliveries to airlines have slowed as well.