Go to the RailEurope website, where you will select 'Bucharest' as your departure city and 'Belgrade' as your arrival city, as well as selecting your preferred date of travel and number and type of tickets needed.
Choose between available train trips between those cities on that day. Choose between an economy or first-class ticket; the first-class ticket costs about 50 percent more, but comes with access to a sleeper car. As this is a 14-hour trip, the sleeper car might be a good investment.
Add the Rail Protection Plan (RPP) for a nominal fee if you'd like to protect your ticket against loss or theft. Enter your passenger information (name, age and country of origin), then proceed to checkout.
Decide whether you would like your tickets sent overnight delivery or in 2 to 3 days. You will then submit your payment by credit card. Be on the lookout over the next several days, as your train tickets should arrive soon.
