Why do airlines decide to start service to a city for only a single or two seasons? An example would be that Southwest flew to Manchester from Ft. Lauderdale, but only lasted for a Month (April). The last Non-Stop flight to Ft. Lauderdale is May 5th, and after that it reverts back to where you must connect to fly to FLL.
Is this just to see if a route is profitable? Or is it just a test or something else? I’m always curious about how seasonal flights work. Thanks! :)