The meeting took place in Bergamo and ended with a score of 3: 1.
Duvan Zapata scored for the hosts in the 10th minute, and Matteo Pessina scored a double in the 16th and 73rd minutes.
The Neapolitans responded only with a ball from Irving Lozano in the 53rd minute.
Thus, Atalanta reached the final of the tournament, as the first match between the teams, which took place in Naples, ended in a draw - 0: 0.
In the decisive game, Gian Piero Gasperini's charges will play against Juventus, who defeated Inter.
Atalanta's Russian midfielder Alexei Miranchuk played the last match on the bench.
Earlier, the head coach of "Inter" Antonio Conte commented on the conflict with the president of "Juventus" Andrea Agnelli, which occurred during the second leg of the 1/2 finals of the Italian Cup.