Al Montoya, meanwhile, made 19 saves for the Canadiens to earn his second victory of the season.
The Canadiens' power play was a real force to be reckoned with in Manitoba, finding the back of the net on three occasions. Andrew Shaw scored a pair of goals with the man advantage, while Pacioretty's tally was also scored while the Jets were short-handed.
Charlie Lindgren will get the start for the Canadiens on Sunday night, with Montoya serving as his backup. Up front, Jacob de la Rose draws into the lineup as Charles Hudon is out with an upper-body injury.
For their part, the Blackhawks are coming off their second straight win on Saturday night, blanking the Wild 2-0 in Minnesota. Goaltender Corey Crawford made 24 saves to register his second consecutive shutout.
Crawford will be between the pipes again on Sunday for Chicago.
Patrick Kane has been leading the way offensively for the Blackhawks so far this season with 14 points (5g, 9a) in 14 games, while Jonathan Toews (4g, 6a) and Ryan Hartman (4g, 6a) sit tied for second with 10 points each.
The two teams last met on October 10 at the Bell Centre, with the Blackhawks skating away with a 3-1 win.
Puck drop on Sunday is scheduled for 7 p.m. EST. The game will be broadcast on Rogers Sportsnet and RDS, as well as on TSN Radio 690 and 98,5 fm.