Late last year, Delta Air Lines booted the chain's two locations from Concourse G, which it controls, because it wanted to refine the dining experience with higher-scale eateries.
Chick-fil-A is a privately held business and part of its corporate purpose statement is "to glorify God by being a faithful steward of all that is entrusted to us."
The chain vows to never open on Sundays, to give workers time to rest and worship if they choose.
But some of Chick-fil-A's charitable contributions have gotten it into trouble. The company had donated free food to the Pennsylvania Family Institute, prompting any outcry from gay rights groups.