Yanni Gourde tied it 1-1 on a power play at 12:46 with a one-timer from the right face-off circle.
The Kraken held a 23-11 shots advantage after the second period.
"In the first two periods we turned over too many pucks, we weren't just supporting each other, and winning battles," Giroux said. "It was pretty bad. 'Jonesy' kept us in the game. And the third, I thought we played a little bit more how we want to play as a team."
Lauzon appeared to score at 5:57 of the third period, but the Flyers successfully challenged that Kraken forward Jaden Schwartz interfered with Jones.
However, Lauzon gave Seattle a 2-1 lead with a wrist shot from the left circle at 14:32.
"On the disallowed goal, it is what it is," Hakstol said. "We can agree to disagree. It doesn't matter, on to the next play. We did that, we generated the lead with just good hard work and then a skilled play … to give away that lead right away after, that's a play we made a mistake. (Our) right defenseman should have gone back to his post there, that allows the net front to be much easier."