I'm looking for a way to find the top k cheapest airports to meet for two people departing from two different airports, and given some dates. The meeting airport shouldn't be the same as one of the two departing airports. Which flight search engine has this feature?
Coming a bit late to the discussion, but a similar search engine is flightsmeet.io, which gives you more control over choosing the inbound and outbound flights.
Disclosure: I am the creator of FlightsMeets.
The flight search engine PanFlights offers flights meetup functionality.
Attaching screenshot with the search box.
Disclosure: I am the founder of PanFlights.