Nick Suzuki had a goal and an assist, and Brendan Gallagher and Lane Hutson each scored for Montreal (37-30-9). Sam Montembeault made 21 saves.
“(Suzuki) has been so consistent all year and he’s a driving offensive player for us and he’s great in his own end too,” Hutson said. “So it’s awesome. He’s been great all year.”
The Canadiens have not lost in regulation at home in nine games (8-0-1) since Feb. 9. It was Montreal’s NHL-leading ninth third-period comeback win.
“We’re very confident, especially at home,” Suzuki said. “It’s just one goal and we’ve come back from worse so we’ve got a confident group that we can keep playing and get our chances and capitalize on them.”
The Canadiens hold the second wild card into the Stanley Cup Playoffs from the Eastern Conference with 83 points, four ahead of the New York Rangers, who lost 4-0 to the New Jersey Devils on Saturday.
“We’ve also been in this position before and kind of let everyone get back in,” Gallagher said. “So it’s game after game. Points are so critical. You’ve got to keep the same mentality. Desperation is huge right now and that’s the way you play. Every game is important and we’re continuing to push.
“We’re having a lot of fun with it right now but our desperation level can’t drop. We can’t give them any hope.”
Ryan Poehling had a goal and an assist, and Samuel Ersson made 23 saves for Philadelphia (31-37-9), which was eliminated from playoff contention.
“You’re up by one going into the third on the road so I think that’s a good situation, I think any team would take that,” Ersson said. “So obviously it [stinks]. We couldn’t find a way to get the win.”
The Flyers had won their first three games under interim coach Brad Shaw, who took over behind the bench after John Tortorella was fired on March 27.
Poehling gave Philadelphia a 1-0 lead at 4:10 of the first period when he put a backhand over Montembeault on a pass from Jakob Pelletier.
“It’s a great pass by Pelletier to get it,” Shaw said. “It’s a really outstanding pick up on the backhand, and he gets a lot on the backhand as well. The execution on that play was exactly what we talked about trying to do a little more regularly, we just couldn’t seem to do it as often as we wanted.”