Delta, United, and their code-sharing partners Virgin Atlantic and Lufthansa via Expedia have round trip airfares travelling from Los Angeles (LAX) to Dubrovnik Croatia (DBV) for $505-$530, making 1 stop or 2 stops. My screenshot is showing two different dates. These are basic economy fares, a restricted-type fare. What is included in the this fare type differs on the airline but you'll be able to see what's included and what's not when you choose your flights.
Departs LAX: Aug 5-7, 9-13, 15-28
Returns: Aug 12-13, 16-31; Sept 1-4
To book this deal, use dates and book it with Expedia [expedia.com]
. Want to see more travel deals? Click here or here.