Mike McKenna, claimed off waivers by the Flyers from the Vancouver Canucks on Jan. 4, made 21 saves in the eighth straight loss for Philadelphia (15-22-6).
"I'd be lying to you if I didn't say it was a little bit of a challenge just from a lot of different logistical standpoints," said McKenna, who has played 35 games for seven NHL teams, "but my job is to play hockey and be a goaltender and stop the puck, and no matter what team I'm on, I'm going to do that to the best of my ability."
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T.J. Oshie scored twice, Jakub Vrana had two goals and an assist, and Pheonix Copley made 37 saves for the Capitals (26-12-4), who have won two in a row after a three-game losing streak. John Carlson had two assists.
Vrana has an NHL career-high 14 goals in 42 games after scoring 13 goals in 71 games last season.
"He keeps maturing, keeps getting more and more confidence, which is good for us," Oshie said of the 22-year-old forward. "You can see what he can do with his legs, and somehow his hands move just as fast. He's a big part of our team moving into a big role for us."