With the win, and Minnesota's loss to Dallas, Arizona, which currently owns the second wildcard spot in the Western Conference standings, stretched its lead over the Wild to three points. Both teams have 11 games left.
Oliver Ekman-Larsson, Jason Demers and Mario Kempe also scored goals for the Coyotes, who have won 10 of their past 12 games and eight of their past nine games at home.
Arizona scored twice in each period and held the Ducks to just a lone goal in the middle frame. Darcy Kuemper stopped 36 shots.
"We're comfortable defending, we're comfortable in our own zone," Kuemper said. "We know chances are going to come, and we're not panicking and opening up and letting them (score) ... Our momentum's kind of snowballing here, and even sometimes when we're not at our best, we kind of have that belief that we're going to win and find a way."