The NHL's department of player safety announced the fine on Wednesday.
Backlund cross-checked Konecny during a game on Tuesday between the two teams. The incident occurred at 11:53 of the first period and Backlund was given a minor penalty for boarding. The Flyers won the game, held in Philadelphia, 2-1.
Backlund, 32, has three goals and two assists in 16 games for the Flames this season.
The Flames are 8-3-5 on the season, the Flyers 8-4-2.