Train travel between Venice and Florence is simple and inexpensive, but it's still best to get your tickets in advance instead of waiting until you arrive at the train station. We chose an early train, around 7:30 a.m., so we would have most of the day to explore Florence. You can purchase all of your train tickets, including the express train to Leonardo da Vinci-Fiumicino airport in Rome, through the Trenitalia site. The train stations are quite nice and offer plenty of options for food and reading material to bring along for the ride. Most trains also have a bar car with morning coffee service.