Leaving an optional tip
In order to provide our users with the best insights and maintain the accuracy of our notifications, you can opt in to give Hopper a $5 tip with your booking. You can always opt out and toggle the fee to be left off of your purchase. It's shown alongside all airline taxes and fees in your fare breakdown before you "swipe to pay" so no worries about hidden fees. :)
Good to know
Hopper does not charge any fees to make changes to your booking. All fees for making changes or cancellations will be determined by and charged by the airline directly.