In its new summer timetable, Croatia Airlines has introduced direct flights from Croatia to Düsseldorf and Copenhagen:

Due to the huge popularity of Croatian Adriatic coastal resorts amongst Austrian holidaymakers, Austrian Airlines is resuming seasonal flights to Dubrovnik and Split into its summer schedule.

What’s new in the Old World - Europe Spring Preview  is a new travel article written by Rick Steves for San Francisco Chronicle in which he shares tips on what’s opened, what’s changed and how to save time and money enjoying it all.
This is what he says about Croatia:

Beyond Boundaries Travel has created two customized tours of Croatia that will have travelers cruising the islands, sightseeing in the beautiful port cities and quaint island harbors, and taking cycling tours of the islands.

Scandinavia’s largest budget airline, Norwegian, will be expanding its operations this summer to include flights from Warsaw to Split.