Delta to serve Shake Shack cheeseburgers on flights. What to expect and when
Shake Shack is teaming up with Delta Air Lines to serve cheeseburgers to first-class passengers on certain flights.
Delta flights to serve Shake Shack burgers — but only in first class
That’s right, an all-beef cheeseburger with Shake Shack’s special sauce, plus lettuce, onions, pickles, and tomato on a ...