Thursday marked the back half of a home-and-home between the teams. The Islanders won the first game 5-4 in a shootout, and New York swept the three-game season series.
The Islanders went ahead 3-2 at the 12-minute mark of the third period after Ottawa’s Zack Smith looked to give the puck to Nilsson, who was unable to freeze it, and Beauvillier shoved it in for his 16th of the season.
Cizikas scored into an empty net in the final minute of regulation.
Trailing 2-1 to start the second, the Senators tied the game midway through the period as Lindberg buried a rebound past Greiss.
The Senators dominated play late in the period, but were unable to get the go-ahead goal despite outshooting the Islanders 17-10 in the second.
The Islanders took a 2-1 first-period lead on Filppula’s goals.
Leo Komarov made a great pass and Filppula beat Nilsson to open the scoring at the five-minute mark.
The Senators tied it soon after as Tkachuk, with his team-leading 15th, tipped Ben Harpur’s shot.
Late in the period, Tom Kuhnhackl flung a puck from behind the net and Filppula batted it past Nilsson for his second of the night.
NOTES: Ottawa’s Christian Jaros is day-to-day with a hamstring injury. New York’s Robin Lehner is listed day-to-day with an upper-body injury. … Joshua Ho-Sang, Dennis Seidenberg, Luca Sbisa and Thomas Hickey were healthy scratches for the Islanders.
Islanders: Host Philadelphia on Saturday night.
Senators: At Boston on Saturday night.