Patrik Laine had a goal and an assist, and Joshua Roy and Brendan Gallagher scored for the Canadiens (33-27-8), who have points in 11 of their past 12 games (8-1-3). Montembeault made 21 saves.
“I feel like we played a really good game,” Montreal coach Martin St. Louis said. “It was unfortunate that we were down two at the time, but I think we believe in what we're doing. We're an extremely confident group, and we just kept at it. Obviously, we get a big power-play goal and we tie it up off a good bounce. I was very happy with the way we played tonight.”
Gallagher tied it 3-3 on a breakaway at 14:16 of the third period following a turnover by Jean-Gabriel Pageau in the Islanders’ offensive zone.
“It was real nice to get a point,” Gallagher said. “Every point matters. Yeah, we would like two. I thought we played a pretty good game. It comes down to them making a play in overtime, a great shot. We’ll take our point unsatisfied and get ready to get to work on Saturday.”
Anthony Duclair gave the Islanders a 1-0 lead on the power play at 5:37 of the first period. He snuck a shot over Montembeault’s left pad from the top of the crease after Anders Lee won a puck battle along the end boards and fed him in front.