Mark Scheifele won the face-off to start overtime and soon after passed to Connor, who scored the winner with a wrist shot top shelf from the slot.
Josh Morrissey, Cole Perfetti and Isak Rosen each scored in the second period, Scheifele had three assists, and Connor Hellebuyck made 18 saves for the Jets (32-30-12), who have won four of their past five games and moved to within one point of the idle Nashville Predators for the second wild card into the Stanley Cup Playoffs from the Western Conference.
Anton Frondell scored his first career NHL goal, Tyler Bertuzzi scored twice, and Spencer Knight made 20 saves for the Blackhawks (27-34-14), who are 1-4-2 in their past seven games.
Frondell, the No. 3 pick by Chicago in the 2025 NHL Draft, gave the Blackhawks a 1-0 lead at 4:42 of the first period. He scored on one knee from the slot thanks to a pass from Ilya Mikheyev, who had retrieved the loose puck off defenseman Louis Crevier’s wide shot attempt.
Morrissey tied the game 1-1 at 1:06 of the second period when he skated in along the Blackhawks’ goal line and flipped the puck past Knight's glove side on the backhand.
The Jets took a 2-1 lead on Perfetti’s power-play goal at 11:19. Blackhawks forward Landon Slaggert’s pass in the Jets’ zone hit Scheifele and was picked up by Alex Iafallo, who went on a 2-on-1 with Perfetti. The forward scored from the bottom of the right circle with 13 seconds remaining on the power play.
Rosen gave the Jets a 3-1 lead at 11:57, putting the rebound of Danil Zhilkin's wraparound attempt past the left pad of Knight after Rosen was left alone in front. It was the forward's fifth goal of the season and second with the Jets, who acquired him as part of the trade of defensemen Luke Schenn and Logan Stanley to the Buffalo Sabres on March 6.
Bertuzzi pulled the Blackhawks back to within one, 3-2, at 13:26, scoring on a spinning backhand that beat Hellebuyck cleanly to the glove side. He then tied the game 3-3 at 9:46 of the third period, jamming it through Hellebuyck's five-hole off a pass from Mikheyev. The tying goal also earned Bertuzzi a career-high with 31 on the season.