Rantanen had a goal and three assists, Sven Andrighetto scored and Philipp Grubauer made 27 saves for Colorado (4-1-2). Nathan MacKinnon had three assists, ending his season-opening goal streak at six games.
"We felt confident playing anyone, but this is a very tough team," Landeskog said. "No team was left undefeated in the League and they're a good defensive team and we scored five goals on them. We knew Kinkaid was playing really well and we felt it would be a hard-checking game, but stuck to our game plan and got rewarded for it."
Hischier scored his first goal of the season on the power play to give the Devils a 1-0 lead 17:42 of the first period.
Andrighetto, who was making his season debut after missing the first six games because of a leg injury, scored to tie it 1-1 at 1:17 of the second period. His shot at the right post appeared to be saved by Kinkaid's glove, but a video review confirmed the puck crossed the goal line.
Landeskog gave the Avalanche a 2-1 lead when he skated down the right side and beat Kinkaid over his right shoulder on the power play at 7:08.
"[Landeskog] is a huge part of what we do," Avalanche coach Jared Bednar said. "We fell behind in the third and he grinds out two goals and gets us a win. I loved his game. He had our team ready to play."