CIS-2018 in Chisinau.

For residents of Moscow and those nearby. From Moscow to Odessa, a bus runs from Novoyasenevskaya – if there are no problems with entering Ukrainian territory, and if you have plenty of time, this is the most budget-friendly option – the bus costs 2500 rubles one way, and baggage costs 250 rubles. It takes 20-22 hours. From Odessa, there are many other options. In total, this will be, on average, faster and cheaper than a train. Update: I see buses from Moscow to Chisinau departing from Tyoply Stan and Novoyasenevskaya. It costs 3000 rubles one way. The journey takes 26-28 hours.