Jessie Scarpa was substituted in the 71st minute and eight minutes later she got the net.
Nathalie Hoff Persson's corner found Scarpa, who through the forehead guided the ball into goal.
It did not take long for the next goal.
With five minutes left of regular playing time, Jenna Hellstrom got a chance from Emilia Pelgander, who was also substituted in the 71st, and was able to send in 2-0.
Initially, both teams went to get three points in a match between two teams that are at the bottom of the damallsvenska table.
They took turns putting pressure, but the goals were missed in the first half - and the decision came late in the second.
The home team, who lost last, took their sixth victory of the season.
Örebro meets Kristianstad next.
AIK will face table-toppers Växjö.