Philadelphia Flyers Joni Pitkanen (44) tries to clear Ottawa Senators Peter Schaefer (27) from in front of Flyers goaltender Martin Biron (43) during second period NHL action at Scotiabank Place in Ottawa, Saturday. (CP/Jonathan Hayward)
Tom Preissing and Mike Comrie also scored for the Senators (42-23-7).
The win allowed the Senators to sweep the season series over the Flyers 4-0 and move ahead of the Pittsburgh Penguins into fourth place in the Eastern Conference standings. The Senators and Penguins face each other Sunday in Pittsburgh.
Mike Richards and Derian Hatcher scored for the Flyers (20-41-11).
Martin Gerber faced 30 shots in picking up the win, while Flyers' goalie Martin Biron stopped 30 shots in the loss.
The Senators opened the scoring at 14:10 of the first as Preissing, who was left all alone next to the crease, tapped in a rebound by Comrie.
The Flyers tied the game just over a minute later as Richards came from behind the net and banged in the puck as he caught Gerber falling backwards.
After battling Mike York behind the net, Comrie was able to pull the puck out and beat Biron with a quick shot to give the Senators a 2-1 lead late in the second. The goal was Comrie's first in 13 games.
The game, played before 19,639, lacked excitement and intensity. Ottawa's ineffective power play was a culprit going 0-for-7.
Dany Heatley also saw his 16-game scoring streak (11-13-24) come to an end.
Notes: Ottawa D Lawrence Nycholat, LW Oleg Saprykin and RW Brian McGrattan were healthy scratchesaThe Flyers were without D Mike Rathje (back, indefinite), LW Simon Gagne (hip, day-to-day) and RW Scottie Upshall (shoulder, indefinite), while G Robert Esche and D Alexandre Picard were healthy scratches.