Burger King is offering a FREE Impossible Whopper when you enter a delayed flight number into the Burger King app (iOS & Android) for a limited time. It must be entered in by December 30, 2019, and only delayed flights departing from the United States are valid. Offer can be used instantly at any participating Burger King or saved for use later but must be used by January 6, 2020.
The Impossible Whopper is a plant-based meat-free alternative to their all-beef Whopper. It has the same flame build char and I think it’s pretty good.