Hypothesis - Making the search panel more touch friendly (including a 'lazy' list of the most popular destinations) for mobile and tablet users will allow more people to enter their search criteria efficiently and thus see more customers progress to the search results pages. Higher conversion would be a bonus, but historically conversion for holidays is known to be weak on mobile and tablet devices.
Users found the modified search panel to be easier to interact with and as such, progression and engagement was improved across both targeted devices. Conversion is down slightly, but it is known that conversion on mobile and tablet devices is already low, especially when making large purchases such as a holiday. These designs and the lazy lists were implemented across devices shortly after the successful test. Lazy lists were also implemented into the desktop code base.