The Kings' No. 1 goalie, Jonathan Quick, will miss 3-6 weeks after having surgery to repair a torn meniscus in his knee. He was injured during practice Saturday.
Campbell is 3-4-0 with a 2.72 goals-against average and .912 save percentage in eight games. He made 22 saves in a 4-3 win against the New York Rangers on Sunday that ended the Kings' six-game losing streak (0-6-0). He started all five games Quick missed with a lower-body injury from Oct. 7-15.
The Flyers will try to win consecutive games for the first time this season. They won 3-2 against the Anaheim Ducks at Honda Center on Tuesday.