This question already has an answer here:
I want to find a cheapest one-day return flight from one of two specific airports to anywhere. It has to be a Star Alliance airline. And it has to be this year. I don't even need to leave the airport. I can hop in the return plane straight away.
Google has almost the perfect search. But I either have to stay for a weekend or enter specific date manually: https://www.google.com/flights#flt=/m/02z0j,MUC..2019-10-26./m/02z0j,MUC.2019-10-26;c:EUR;e:1;a:STAR_ALLIANCESTAR_ALLIANCE;ls:we;sd:1;t:e
I don't know if the url is valid but here's an example of a search for specific date. I'd like to have this search for a 1 day trip in a whole month instead. On the PC I can filter also by the price.