Konecny's first goal, at 19:27 of the first period, gave the Flyers a 2-1 lead and came 21 seconds after the Capitals had tied it 1-1.
"That goal was big," Konecny said. "When you take the lead going into the break, it's always a big momentum thing for the game and also for our line. We had been against [Alex] Ovechkin's line for most of that period, and we didn't really have much, we were giving up a lot of chances against, and I think that helped us too, kind of settled us into the game and got us our momentum and confidence back."
Konecny finished a 2-on-1 rush with Laughton for a short-handed goal at 7:28 of the third period to make it 4-1 and closed the scoring with an empty-net, power-play goal at 19:47 for the 5-3 final.
The goals also give Konecny 24 in 36 games, tying his NHL career high, which he reached three times, the last in 2019-20, but he scored a total of 27 goals the past two seasons.
"I just think he's playing," Flyers coach John Tortorella said. "He's a reactionary-type player. I've only seen him play from afar before this year. He just plays. The puck finds him. He plays in the [right] areas. Everything about his game, his effort, I think he's getting rewarded."