we want to fly from jfk or ewr to dubrovnik,croatia in may after the 15th. 2 will return from zagreb in may and 2 will return from split or ljubljana early in june.what airlines can do these?
I doubt that anyone can provide a better answer than you can find yourself. Just plugged your cities and dates into several of the travel search engines and see what you get. Probably will be a mix of airlines. Good luck
Start with a search engine that covers multiple airlines, like Expedia, Travelocity, or Kayak. Put in round trips for two people into Dubrovnik and out of Zagreb. Then put in another round trip for two into Dubrovnik and out of Split or Ljubljana. You'll have to choose the "multiple city" option to fly into one city and out of another. You could choose the same flight to Dubrovnik for all four of you when you actually book it.