Open the boarding pass in your Apple Wallet; in the bottom right-hand corner you will see the “i” button. Just tap it.



Choose “Share Pass” on the popped-up screen.



Select App in the Air. If App in the Air is not on the list, tap “More” and select the app.



The boarding pass will appear as a card on your flight list, at "Boarding pass" widget":


If you would see an error while adding your flight -> share this Wallet file to support@appintheair.mobi. We will take a look at it.