...While at it, some examples of other train and flight ticket prices

Train schedule

Hints from a ticket-procurement expert

Recommended Trans-Siberian resources

train schedule - an overview

Trains leave Moscow from Yaroslavsky station at

#10 Moscow-Irkutsk  11:55pm  daily

#2 Moscow-Vladivostok 10pm  daily

#4 Moscow Beijing 10:17pm Tue. and Friday

#6 Moscow - Ulan-Bator  10:17

Time in transit

[diagram]

Moscow - Ekaterinburg

Ekaterinburg - Krasnoyarsk

Krasnoyarsk - Irkutsk

Irkutsk - Vladivostok

Irkutsk - Ulan-Bator

Irkutsk - Beijing

The above should give you a rough idea. For more precise information I recommend ................. even though you'll need time figuring out how their database works. Of course I'll check the final info before you actually buy your tickets.