Trevor Moore also scored for the Kings (42-23-9), who have won six of eight. Darcy Kuemper made 18 saves.
“I think all year when we’ve been playing against the top teams, we’ve really gotten up for those games,” said Kuemper, who is 8-2-0 in his past 10 games. “We like to challenge ourselves, and those are great measuring sticks playing against a team like them. And I think the top teams bring out the best in us, make us play our best hockey, and I think that’s why we’ve had so much success.”
Los Angeles remained two points ahead of the Edmonton Oilers for second place in the Pacific Division and pulled to within five of the Vegas Golden Knights.
Cole Perfetti scored for the Jets (51-20-4), who had won three straight and seven of nine. Connor Hellebuyck made 16 saves.
“They’re obviously a really good team in this building and don’t give up much, but I thought we created some chances and had our looks,” Perfetti said. “A couple self-inflicted wounds, and they capitalized on some of their chances. … Obviously, you want to get a win, but we didn’t play that bad.”
Winnipeg remained four points ahead of the Dallas Stars for first in the Central Division. Dallas has a game in hand.
The Kings scored twice in a 1:22 span in the first period.
Moore gave the Kings a 1-0 lead at 8:28 of the first period, knocking down Joel Edmundson’s long pass and causing the puck to go in off the toe of his left skate.
Kopitar made it 2-0 at 9:50 on a one-timer from the right circle set up by Kuzmenko off the rush. It was Kopitar’s 300th career goal at even-strength to become the fourth Kings player to reach the mark, joining Marcel Dionne (369), Luc Robitaille (344) and Dave Taylor (304).