Modifying or cancelling your Skyscanner booking will require you to find your trip on the travel provider’s site. The travel provider may include an airline or online travel agency (OTA). You may be able to change or cancel within 24 hours of the booking without charges. But if you are outside this window, you will be charged a fee. The actual charges will depend on travel provider with which you are booked. Here are a few things you should remember about changing third-party bookings.