The closest commercial airport to Rovinj is Pula Airport (Google Maps), a 50-minute drive by a shuttle bus or a 30-minute drive by a taxi. During the time Web Summer Camp is held, there are flights from Amsterdam, Berlin, Cologne, Frankfurt, London, Munich, Paris, Vienna with the standard airlines (e.g. Lufthansa, British Airways, etc.). There are also many low-cost airlines flying there, such as EasyJet, Flyglobespan, Germanwings, Ryanair, ScandJet, TUIFly, Wizzair.
Other viable airport options are:
You can reach Rovinj from all above-mentioned airports by car or by taxi as well.
If you want to have a scenery ride to Rovinj, you can come by boat from Italy.
You can also use the ferry if you are coming via Trieste. The ferry tickets can be bought on the Trieste lines website.
Because of its great position (only 60 km away from the Italian and Slovenian border), Rovinj is easily accessible by car from the neighboring countries, Italy and Slovenia, with Austria, Germany, Switzerland, and Hungary not being far away either.