Jordan Oesterle, Artem Anisimov, Vinnie Hinostroza and Patrick Kane also scored for the Blackhawks, who erased a two-goal deficit in the third period. Anisimov, Hinostroza, Toews and Kane all scored in the final 10 minutes to spark the comeback.
Chicago ended a two-game losing streak and won for only the fourth time in its past 15 contests. The Blackhawks marked their fourth win when trailing after two periods (4-21-2).
Tanner Pearson, Alec Martinez and Alex Iafallo scored for the Kings. Los Angeles boasted a 20-1-1 record when leading after two periods until Saturday's third-period collapse.
Blackhawks goaltender Anton Forsberg made 29 saves to improve to 8-13-3. Kings goaltender Jonathan Quick turned aside 20 shots in the loss.
Toews scored the go-ahead goal on the power play with 1:58 remaining. He snapped a wrist shot from the top of the right circle as Anisimov screened Quick in front of the net.
Chicago opened the scoring 13:11 into the first period. Oesterle collected a loose puck in the high slot and weaved a shot through heavy traffic in front of the net for his fourth goal.
Los Angeles evened the score 1-1 at the 4:27 mark of the second period. Pearson stole a pass from Blackhawks defenseman Duncan Keith and scored on a partial breakaway.
The Kings grabbed a 2-1 advantage less than two minutes later. Martinez drove to the front of the net and scored on a rebound.
Late in the third period, the Kings made it 3-1 on a goal by Iafallo. He ripped a wrist shot over Forsberg's left shoulder.
Chicago cut the deficit to 3-2 on a power-play goal by Anisimov with 9:12 to play in the third period.
Hinostroza evened the score 3-3 with 5:36 remaining in the third period. His shot from the slot squeezed through Quick's pads and trickled across the goal line.
After Toews' goal, Kane added an empty-net goal with 2.9 seconds remaining.
--Field Level Media
Chicago | Los Angeles | |
Patrick Kane 3 | Points | Alex Iafallo 1 |
Patrick Kane 1 | Goals | Alex Iafallo 1 |
Patrick Kane 2 | Assists | Dustin Brown 1 |
Jonathan Toews 1 | Power Play Goals | N/A |
N/A | Short Handed Goals | N/A |
Anton Forsberg .906 | Save Percentage | Jonathan Quick .833 |
Anton Forsberg 29 | Saves | Jonathan Quick 20 |
Team | Shots | Goals | Power Play | Penalty Kill | Penalty Mins | Face Offs Won |
Chicago | 25 | 5 | 2-5 | 2-2 | 4 | 29 |
Los Angeles | 32 | 3 | 0-2 | 3-5 | 10 | 32 |