"We made a few stupid mistakes," forward Wayne Simmonds said. "We weren't looking behind our backs and when you play a team like that they're going to capitalize."
Voracek's wrister at 12:31 helped Philadelphia to a 1-0 lead after one period. The Blackhawks were coming off a 6-2 victory at Dallas on Tuesday night and looked a bit listless at the start of their first game against the Flyers since Jan. 5, 2012.
That all changed in the second.
Keith got it started with a big drive past Emery just 43 seconds into the period. Then came Shaw's goal, and Handzus made it 3-1 when he scored his third on a break with Marcus Kruger.
Downie's third goal momentarily slowed the Blackhawks' run. Kris Versteeg beat Emery off a terrific pass from Brandon Saad, and Sharp's slap shot went off Jonathan Toews and in to make it 5-2 at 14:15.
"Great second period for us," Blackhawks coach Joel Quenneville said, "and it kind of went from there."
Emery departed after Brent Seabrook scored on a slap shot 65 seconds into the third. Emery finished with 12 saves.
"You're going to be frustrated," Emery said. "There's an old saying, 'You show me a good loser and I'll show you a loser.'"
Raanta made 28 stops to improve to 5-0-1. He drew a large ovation from the crowd when he stopped Brayden Schenn and Michael Raffl on a pair of short-handed breakaways in rapid succession in the third.
NOTES: Blackhawks F Bryan Bickell (lower body) skated Wednesday morning and could practice with the team on Friday. "Showed good progress," Quenneville said. ... The Flyers scratched LW Tye McGinn and defensemen Erik Gustafsson and Hal Gill. ... Defensemen Michael Kostka and Michal Rozsival, along with Crawford, were the Blackhawks' scratches. Crawford is out with a lower-body injury.
Jay Cohen can be reached at http://www.twitter.com/jcohenap