You can get a free Burger King Impossible Whopper if your flight is delayed using the BK app according to Twitter.
How to get free whopper:
- Load up the iOS app or the Android app.
- Login or register for the app then look for the Delay Your Way option to claim your free offer.
- Enter a delayed flight number like DL5743, AA3744, DL2654 or find a number here (just combine “airline code” plus “flight number” to make a valid flight number, see previous numbers for example)
- Then just find a restaurant near you to claim it in-store!
* US Only. Mobile app required. Must have a delayed flight/be near an airport. While supplies last.