The win gave the Flyers a .500 record for the first time this season, at 11-11-1. Philadelphia has won five of its last seven games.
Marc Methot scored for the Senators, who lost in regulation for the first time since Feb. 16.
Goalie Ben Bishop had won his last four starts for Ottawa, posting 1.69 goals-against average during the stretch. But the Senators have had trouble scoring on the road and struggled to get quality chances against the Flyers.
Obviously a lot happened in a short period of time. At the end of the day, considering everything I went through, I really felt close to my teammates and I really feel like what we accomplished, I know we didn't win it all. ... I'm really proud of how we got there and what we did once we got there.
— Rangers forward Martin St. Louis to Jim Cerny of BlueshirtsUnited.com