"We hung in there and won it."
The Sens have now won three of five against the Flames this season. Ottawa also has five wins in their last eight contests.
Calgary earned just one point from the game, leaving them three behind the Montreal Canadiens for fourth place in the North Division.
"It stings right now," Flames defenceman Mark Giordano said. "We know how important these points are. We've got to come out better than we did. Obviously, in the third we had a great push. But we've got to find a way to get two points in games. That's the bottom line right now."