Do I need to buy Italian train tickets in advance?

Italy rail tickets are unusual to sell out but cheapest train fares on popular high speed train routes can sell out fast, like Rome to Venice train, Milan to Rome train and Milan to Florence train.
Price of rail tickets with different levels of flexibility can vary. Super economy is the cheapest fare which can not be refunded or changed and usually the first type of fares to sell out. Economy can not be refunded but can be changed once before departure. Base is the most flexible and expensive fare with maximum flexibility: unlimited free changes and refund subject to a fee before departure.
To get the cheapest price on high speed train, we recommend you to book Italy train tickets in advance. If you can not decide a travel time, Base fare is advised to enjoy a hassle-free travel.