United plans to add the only nonstop service between the U.S. and Croatia on July 8, 2021, with service to Dubrovnik on Croatia’s Dalmatian Coast. The airline will operate three weekly flights between Newark and Dubrovnik through October 3. Flights will operate Monday, Thursday, and Saturday from Newark and on Tuesday, Friday, and Sunday from Dubrovnik, and will be timed to connect in Newark to more than 65 cities in North America. Let us help you plan out a custom trip to this special destination either by land or by boat to explore its beautiful islands, charming towns, and scenic coastline. A negative COVID test, certificate of vaccination or if you had COVID, you can enter Croatia (there are finer details to understand). These rules apply to ages 13 and up. You also need proof of paid accommodations.