Flying to Italy is simple and often not expensive. Use a good aggregator website like CheapOair, Hipmunk or Orbitz, and avoid bigger sites like Expedia or TripAdvisor, which will try to sell you hotels as you book.
Venice has its own airport, Marco Polo (VCE) which is a short hop from Rome, the gateway for most people travelling to CATT Venezia by air. Rome has two airports, Rome Fiumicino (FCO) and Rome Ciampino (CIA). Most major airlines use FCO, but you should check, as the connections into Rome are different. Flights to Rome on Ryanair, EasyJet and other discount flyers can be very cheap from inside the E.U. Rome also sometimes is the destination for charter flights from North America on airlines like Air Transat; they sometimes sell their remaining seats for very cheap prices.
Taking a train to Venice is easy: from Rome you go on the Trenitalia website:
The train destination can be either Venezia Mestre or Venezia Santa Lucia. Mestre is the town on the mainland where many CATT participants will be staying; it’s a quick and easy commute into the city from there.
The central bus station is located on Piazzale Roma, very close to the Santa Lucia train station. Buses from cities like Vienna and Ljubljana arrive frequently.
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