The Flyers have gone 7-for-14 (50 percent) on the power play in the past four games.
"Sometimes you get lucky and score and sometimes you move the puck around well and it doesn't go in," said Philadelphia forward Jakub Voracek, who had two assists and leads the NHL with 45. "We've been playing together for a long time and know that if we're not good enough, what we need to do to get better."
New Jersey forward Taylor Hall said, "It wasn't the game we wanted. I think that's the way things have been going lately. Good starts followed by so-so second periods. I think we had some of the worst shifts of our season that lost us the momentum and took the wind out of our sails."
This was the first time Devils forward Nico Hischier and Flyers forward Nolan Patrick, the No. 1 and 2 picks in the 2017 NHL Draft, played against each other in the League. Hischier had an assist and one shot in 15:52. Patrick went 5-for-7 on faceoffs and had three shots in 8:59.
"We never gave up," Patrick said. "The power play was huge and we had a lot of big penalty kills, so special teams was big."
Couturier gave the Flyers their first lead with a power-play goal 18:16 into the second on a snap shot from the left hash marks to make it 3-2. It was his third consecutive game with two goals; he has scored in four straight.
"I just want to keep it going," Couturier said. "I had a good first half but I need a better second half so that we can make a push and make the playoffs."
Konecny made it 4-2, taking a stretch pass from Ivan Provorov and scoring on a breakaway rebound 4:28 into the third period. Raffl scored on a backhand at 12:04 for a 5-2 lead.
Stafford scored a power-play goal at 19:15 to make it 5-3.
Simmonds tipped in a shot by Giroux to tie it 2-2 on the power play 11:53 into the second period after Voracek kicked the puck to Giroux in the left circle.
The Devils took a 2-1 lead on Palmieri's power-play goal off a one-timer from the left circle 1:46 into the second. Couturier tied it 1-1 at 14:35 of the first after Bratt had given the Devils a 1-0 lead at 5:43.