SisterCities

Sistercities.app is a flight search engine with unrivalled features such as the ability to search over many months and varying trip lengths with filters such as the day of the week, specific hours and maximising weekend time in destination. Search flights to Everywhere which match your desired temperature range, hotel costs, visa requirements, and much more.

The Meet Halfway feature suggests practical meet up cities on a global scale, computed based on the availability, frequency and cost of flight routes.