Flight cancellations and modifications are currently not supported in the app.
Hopper does not charge any fee to change or cancel flights; however, most airlines charge a fee to modify or cancel your booking, which we must collect on their behalf. These fees vary for each booking -- you may find the fees for changing and canceling your Hopper booking in the fare rules you agreed to at this time of your booking. Cancellation and change fees can be pricey and in some cases these modifications are entirely prohibited, so we encourage users to double-check the spelling of their names and their dates of travel before finalizing their booking in the app.
Need to modify or cancel your flight? Please contact us directly at firstname.lastname@example.org.