Wade Allison took a pass from Kevin Hayes and scored through traffic from the slot at 5:40 for the 3-1 final.
"Timely goals," Tortorella said. "Some grinding with 'Ally's' goal. That's a big goal. I thought we were protecting the puck well. No one particular thing [tonight]. I just thought we played well as a team."
Washington outshot Philadelphia 19-9 in the third period.
"I feel like we are getting to the offensive zone," Capitals forward Tom Wilson said, "but when we are there, that is when we've got to make the next play, and we haven't been doing that."
NOTES: Laughton has 18 points (eight goals, 10 assists) in his past 18 games. … Flyers forward Travis Konecny had his 10-game point streak end. … DeAngelo has 11 points (three goals, eight assists) in his past 10 games. … Ovechkin became the fifth player in NHL history to score 400 goals at home (Wayne Gretzky, 492; Gordie Howe, 449; Jaromir Jagr, 411; Gartner, 401). Ovechkin, who has 410 road goals, became the second player to score 400 at home and on the road. Gretzky had 402 on the road. … Capitals center Nic Dowd led all players with nine hits.