The game, which took place in the capital, ended with a score of 3: 1 in favor of the team from the Black Sea city.
As part of Sochi, the goals were scored by Vasily Glotov (16th minute), Yaroslav Dyblenko (38th), Amir Garayev (60th).
Jake Virtanen (59th) scored in the red and white.
Spartak (26 points) is in eighth place in the Western Conference.
Sochi (18) is at the bottom of the standings.
Earlier it was reported that Severstal beat Torpedo in the KHL match.