Hi Tina, I’ve been to Venice several times, and I mostly take the Aliguna boat from the airport into the center of the Venetian islands. It was €14 last September, and you will want the orange (arancio) boat. The boat will take you to the Rialto Mercato or Rialto vaporetto stop. Check with the crew when you board.
I’ve also taken the bus at the airport and then transferred to a vaporetto boat, but when I have jet lag, I really want to just get on one mode of transportation and get to my final destination. There’s also no worries about validating a ticket.
I grew up in Iowa and now I’ve traveled all over Europe on trains. It’s very easy, so don’t worry about it. To leave Venice, you will take a vaporetto back to the train station - this is the St. Lucia Venezia station. That train will take you to Milano Centrale. Then you will transfer at Milano Centrale to the train going to Varenna.
Are you on the Rick Steves 17-day Best of Italy tour? It’s fantastic!
If you know what day and time you want to ride the train, you can purchase the tickets on-line a month or two ahead at www.Trenitalia.com. If you buy them close to the day of travel, the cheaper tickets will be gone.
When you transfer at Milano Centrale, the train tracks are all coming into the station vs. going through it. Picture it like a wide fork with the tines being the train tracks. So, you won’t need to go down steps and under tracks to get to your next train. The large reader boards will list the train numbers and they update it with the track number when the train is close to arriving at the station.
When you are walking to your Venice train, look at your ticket to see which train car you are riding. Walk to that car, and then find your seat. Sometime during the ride, the train conductor will stop by your seat and want to see your ticket. S(he) is looking for the code number to make sure you have a ticket.
If you have a normal carry on size suitcase, you can usually place it above the seats on the open rack. Try to move quickly to your seat so all of the passengers behind you can board, too. Then enjoy the ride! Bring a snack along if you want, or the Venezia-to-Milano train will have a snack car.