Delta is teaming up with Shake Shack to offer the chain’s cheeseburgers to flyers. Starting Dec. 1, first-class travelers on long-distance domestic flights out of Boston will be able to order cheeseburgers with their choice of toppings, a Caesar salad, and a chocolate brownie.

The program, set to expand to other cities throughout 2025, is the latest move by an airline to lure customers with expanded food and beverage options. And it’s not the first time an iconic cheeseburger has snuck into a first-class cabin: United Airlines served McDonald’s Happy Meals in the 1990s.