The WCHA will have at least one team in the Frozen Four.
The Gophers, the regular-season conference champions, and North Dakota, winners of the Final Five three years in a row, will meet for the sixth time this season on Sunday with a trip to Tampa, Fla., at stake.
The Gophers, appearing in their first NCAA tournament since 2008, beat Boston University 7-3 on Saturday at Xcel Energy Center in the second semifinal of the West Regional.
Earlier at the Xcel, the Fighting Sioux advanced with a 3-1 victory over Western Michigan. The announced attendance for the doubleheader was 9,386.
The Gophers (27-13-1) won three of four games with UND during regular-season play but had a classic collapse in the Final Five semifinals. North Dakota, behind 3-0 midway through that game, rallied to win 6-3 at Xcel.
Eight days later the Gophers returned to St. Paul and sent the Terriers (23-15-1) home for good. Forwards from three lines scored for the U as did defensemen Jake Parenteau and Seth Helgeson, who got their second and fifth goals of the season, respectively. The final margin was inflated by two late empty-net goals.
Goals from different players was what Gophers coach Don Lucia wanted. "This time of the year you just can't rely on your key guys," he said. "Some other guys have to step forward and score a big goal."
Jake Hansen's power-play goal, on a deflection in second period, was the game-winner. The senior winger also scored a second goal, his 15th, after BU pulled its goalie.