A game-tying goal by Martin Necas with 0.2 seconds remaining in regulation set up overtime, where Sebastian Aho completed a hat trick just 28 seconds in to hand the Flyers a 5-4 defeat on Saturday evening at Wells Fargo Center.
As the Flyers have lost three straight and 12 of their last 15 games, the Vegas Golden Knights sit atop the Western Conference standings and has won six of their last seven games.
The Flyers face off against the Pittsburgh Penguins on Saturday afternoon, a team in need of points to maintain their place as the final team in the playoffs in the Eastern Conference.