Book tickets from your departure city of Sofia to a city that connects with Moscow. No direct trains are available, but you can transfer to Moscow from Berlin, Warsaw, Vilnius, Minsk, Riga, Talinn, Helsinki or St. Petersburg. Book this ticket through Rail Europe's Web site (see Resources below) or call 1-888-382-RAIL.
Book a ticket from your connection city to Moscow through the Way to Russia Web site (see Resources below). Prices for the overall journey will be moderate.
Choose whether you would like to sit in first class, second class, third class or seat-only. Most assigned seats come with a bedding assignment as well. Note that a seat-only ticket comes with no bedding assignment, which means you won't be able to lie down for over 60 hours.
Choose the type of ticket you'd like to book between one-way (no return), 2-way (return ticket with pre-determined date and time) and multi-leg (multiple destinations before and after you reach Moscow). If you know when you will be leaving Moscow, consider a return ticket for the most cost-efficient fares. If you don't plan on returning to Sofia but know when you'll be leaving Moscow, consider a multi-leg journey.
Determine whether this is a business trip, a vacation or both. This will help you decide the proper length of your trip. Make sure you leave plenty of time to explore Moscow. Red Square and the Kremlin are two of the city's most popular attractions.
Choose a trip length that suits your needs. Do you want to stay in Moscow for a week or just a few days? Train travel from Sofia to Moscow may take a few days (the average length is over 60 hours). Be sure you allow enough time to see the sights.
Select a day to leave Sofia, keeping in mind that your arrival date in Moscow will be about 3 days later. If you need to be in Moscow by a certain date, you can search fares by arrival dates and times rather than departure dates and times.
Select a time of day you wish to either depart Sofia or arrive in Moscow, keeping in mind the time difference is 1 hour. When it's 9 a.m. in Sofia, it's 10 a.m. in Moscow.