A FlyerTalk Posting Legend
Join Date: Sep 2009
Location: Minneapolis: DL DM charter 2.3MM
Programs: A3*Gold, SPG Plat, HyattDiamond, MarriottPP, LHW exAccess, ICI, Raffles Amb, NW PE MM, TWA Gold MM
Posts: 100,404
If you try to add stopovers (usually defined as over 24 hours on international itineraries), this is likely to increase the fare.
If you end up staying in more than one hotel (even if it's due to a missed connection), be really careful that your passport/visa/stays are registered correctly. You don't want to be hit with a big fine when you leave Russia.