Van Riemsdyk and Jagr scored 52 seconds apart late in the first period to erase the Red Wings' 1-0 lead.
Van Riemsdyk tied it 1-all with 2:34 left in the opening period and Jagr gave the Flyers the lead for good with 1:42 remaining in the first.
Philadelphia's victory came a night after a banana was thrown from the stands as Wayne Simmonds scored for the Flyers during a shootout in a 4-3 loss. Simmonds, who is black, did not play Friday night but was seen signing autographs.
Copyright by STATS LLC and The Associated Press
Arena: Joe Louis Arena Location: Detroit, Michigan
Referees: Francois St. Laurent, Justin St. Pierre Linesmen: Steve Miller, Bryan Pancich
Attendance: 14,310 (71.3% full)
Team Stat Comparison
Power Play Goals
Power Play Opportunities
Shots on Goal
Fabian Brunnstrom (1)
Assists: Patrick Eaves, Cory Emmerton
James van Riemsdyk (3)
Assists: Sean Couturier, Jaromir Jagr
Jaromir Jagr (1)
Assists: Scott Hartnell, Matt Read