Troy Bourke and Zach Pochiro also scored for the Cougars (18-33-8), who ended a three-game slide, while Jari Erricson chipped in with two assists.
Jaimen Yakubowski scored all four goals for the Hurricanes (25-26-9), who dropped their fourth game in a row.
Mac Engel made 35 saves for the win as Ty Rimmer took the loss after alllowing five goals on 29 shots in 40 minutes of action. Christopher Tai replaced Rimmer to start the third period and stopped all six shots he faced.
Prince George went 3 for 6 on the power play while Lethbridge scored once on six chances with the man advantage.