I fly to Croatia several times during the year to mainly Split.

My main options are:
Fly in to Frankfurt from DFW and connect with Malev through BUD. Layover in BUD is less than an hour before continuing on to Split. The downside with this routing is that the return options require an overnight stay in either BUD or FRA given that the SPU departure is later in the day, thus preventing me from making any transatlantic flights the same day. This July, my return leg is departing from Split on EasyJet to Rome connecting on a 1PM BA flight to LHR.

During the winter, I generally fly in to London and take EasyJet from Stansted/Gatwick.

I'm keeping my fingers crossed that BA returns to ZAG or SPU.