The main functionality of the Skyscanner service (https://www.skyscanner.net/) is to search through the many flights available, matching a certain criteria based on price, time, location, and so forth. After finding a suitable journey in the (initially minimal looking) mobile app, a user would normally go through a booking process to purchase their flights.

If they aren't ready to make the purchase, a user of the application can favorite a flight combination for later. Upon doing this, a menu will appear in the application from which favorite searches can be returned to. If these searches are visited many times, then another new feature called watched flights appears, which allows more advanced holiday planners to monitor the varying prices of their searches.