This airline is going to start serving Shake Shack burgers on its flights 

A major airline is going to start serving Shake Shack burgers on flights (Picture: Scott Olson/Getty Images)Plane food has a bit of a reputation for not being the best, but this is about to change for some frequent fliers.That’s because a popular airline is launching Shake Shack food on certain flights, meaning passengers will be able to enjoy a cheeseburger in the sky. But, there is a pretty big catch.Delta Air Lines in the USA will be serving up the chain’s burgers on its pla