Definitely the easiest way to reach Poreč is flying to one of the nearby airports. One with most options from around Europe is Trieste airport (Ronchi dei Legionari, Friuli-Venezia Giulia).
Try to plan your flight to catch one of the very few buses from Trieste to Poreč. Here’s a link to the bus station in Trieste with all the possible bus lines to Poreč (Parenzo in Italian). Definitely check our official “find a partner/roommate/travel companion” Facebook group where tangueros have organized and track their arrivals to plan taxi shuttle shared rides.
There, you can arrange a joined trip with many people coming to Poreč from Trieste. A lot of people can squeeze in one car – why not try it?
If you are coming by car, here is the map how to reach Valamar Diamant in Poreč – the hotel where the festival registration desk is situated.