Teravainen made it 2-0 with a wrist shot over Elliott's shoulder from the right face-off circle for a power-play goal at 4:43.
"No one wants to go down 2-0 in the first five minutes," Flyers defenseman Ivan Provorov said. "We knew there was 55 minutes left, and we knew if we played our game, make them defend and don't turn pucks over, we would be able to have chances."
Giroux made it 2-1 when he took Konecny's pass from behind the net and scored at the right post at 6:31, and Provorov scored a power-play goal on a wrist shot to tie the game 2-2 at 13:14.
"The only play to really score on that goal is to go to the back post," Konecny said. "I kind of knew [Giroux] was going to be there, and (I was) lucky that it snuck by the post. It's 1-in-10 that's going to sneak by there."
Frost scored his second goal in his second NHL game to give the Flyers a 3-2 lead at 2:51 of the second. Giroux won a face-off to Frost for a one-timer that beat Mrazek five-hole for a shorthanded goal.