The Blue Jackets scored three times with the man advantage in a 4-0 win over the New York Islanders.
With every point of great importance, Columbus had at least one slip through its grasp Friday, losing to the Chicago Blackhawks on a goal in the waning seconds of regulation.
The Blue Jackets secured two crucial points Sunday to close within one of Detroit for the first wild-card spot in the Eastern Conference. Columbus also tied Philadelphia for third place in the Metropolitan Division. The Flyers are currently playing Buffalo.
Sergei Bobrovsky made 31 saves in his career-high 29th win of the season.
Anders Nilsson surrendered four goals on 33 shots as the Islanders saw their point streak end at seven games (5-0-2).
Boone Jenner opened the scoring on Columbus' first power play. The puck sat in the crease after going through Nilsson's pads and Jenner pushed it across the goal line at 4:26 of the opening period.
Jack Johnson beat Nilsson with a one-timed blast from high in the right circle on another power play to make it 2-0 at 13:10 of the first.
Mark Letestu finished off a give-and-go with Jenner by putting the puck into an open net for the Columbus' lone even-strength tally just past the midway point of the second period.
Back on the power play, Ryan Murray was in the high slot and hammered a feed from Cam Atkinson behind Nilsson with 1:07 to play in the middle frame.