Robert Scare added 16 points on 5 of 5 shooting for the Bulldogs (17-3, 7-1 West Coast), who won their fourth straight game. Kevin Pangos had 12 points.
Gonzaga came out sizzling in the second half, making 15 of 22 shots from the field and 18 of 20 free throws after the break. They scored the first eight points of the half to take the lead for good.
The Pilots, who led the nation in 3-point shooting the last three seasons, made just 6 of 21 attempts on Thursday.