You can buy e-tickets anywhere through the Internet, and you can just pick them up in the airport before your flight, as everywhere else. Also, always be in the airport 2 hours before your flight.
Call a taxi to the airport, the railway or the bus station the evening before or at least a couple of hours before the departure and agree on the time â the taxi service is extremely popular with the city's inhabitants and there are a couple of times during the day when it is difficult to get one.
To get out of the country travel first to Moscow or Novosibirsk and then wherever you like.