The plane Ostap Bender wants to buy from his earned million is an An-2, which was built in 1947, 17 years after the movie's setting.
The news announcer mentions about the first soviet pioneer meeting, which happened in 18-25.08.1929, one year before the movie's setting.
When telling Bender about the regions in the USSR that were shared between the organization "Children of Leutanant Schmidt" Balaganov mentioned that Panikovskiy was assigned to the Mordovsaya ASSR. However that republic was found in December 1934, while the story is set in 1930. In the original book Panikovsky took the region of Povolgje, a region in south Russia near Kazachstan.
In the radio news report when Koreyko is walking with his suitcase the announcer said that premier minister of France Raymond Poincaré resigned from his position. However this happened in in July 1929, while the plot takes place in 1930.