Train 263 (Ulaanbaatar - Irkutsk) departs
Ulaanbaatar in evening and arrives to Irkutsk in the morning after 2 nights of
travel. It does not have 1st class, but it is possible to book (min. 2 people
required) the whole entire 2nd class cabin if you want space and privacy.
Train 263 Ulaanbaatar - Irkutsk (daily in high season)