The price was 500 RUB. I guess it was slightly higher than the standard price. I did not have no time to negotiate for price to be in time to the flight and I found only one taxi. 300-400 RUB would be reasonable. It took 30-40 minutes to the airport.
Walking was obviously a main stay of getting around just like in any city. A main way to get around bigger distances when it is cold or you are in a hurry is to get a taxi. There are lots of them going about and it doesn't normally take long to get one. One problem can be the language and they tend to over charge if you can't speak russian. It should cost around about 100roubles to get around the city centre but they sometimes try to charge you more. Try and argue but don't do it too much as they can get aggressive.
Beware though the taxi's aren't in that good condition and most of them are old ladas.