After dismissing the Utah Jazz with a businesslike 111-99 victory, the Trail Blazers exited the visiting locker room at EnergySolutions Arena one-by-one Friday night, bound for a flight back to Portland.

The win, coupled with a Golden State Warriors loss to the Los Angeles Lakers in a late-night matchup on TNT, would have guaranteed the Blazers no worse than the fifth seed in the Western Conference playoffs. So they walked away from Salt Lake City unsure of their playoff fate.

But just about the time they reached their cruising altitude of 35,000 feet, the news probably reached them on their in-flight Wifi: The Warriors beat the Lakers 112-95, setting up a Sunday showdown between the Blazers and Warriors at the Moda Center that could decide the Blazers’ playoff seeding.

“That’s the biggest game of the year for us,” Blazers shooting guard Wesley Matthews said of the 6 p.m. matchup in Portland “It’s a playoff game. That’s going to be our approach.”

Win Sunday and the Blazers not only lock a date with the Houston Rockets in the first round of the playoffs, but also maintain a slim chance at sneaking up to the fourth seed to gain homecourt advantage. Lose and, well, things remain a cluster. The Blazers (52-28) ended Friday night one-half game behind the fourth-seeded Rockets and 2 ½-games ahead of the sixth-seeded Warriors (49-30) in the Western Conference standings.

“We want to move up,” Blazers coach Terry Stotts said. “Whether we can catch Houston or not, who knows? But, (if) we win the game on Sunday we secure the fifth spot. I think the way we view it ... we just want to accumulate wins and we want to have the best seeding possible.”

At the very least, the Blazers did their part against the Jazz. After a sluggish start, they pulled away from their NBA Lottery-bound Northwest Division rivals with a dynamic and dominant fourth quarter orchestrated by Damian Lillard.

Through three quarters, the All-Star point guard had scored just two points and made zero field goals, misfiring on all four of his shot attempts. But that inactivity disappeared in a hurry, and a tight game became a Blazers blowout.

After Dorell Wright hit a three to give the Blazers an 80-79 lead with 10:15 left, Lillard caught fire, scoring eight consecutive Blazers points and 14 of 16 during a game-changing burst. Lillard started the run with back-to-back three-pointers 37 seconds apart, added a couple free throws, and finished it with two more threes. The last came with 6:28 left and gave the Blazers a 96-85 lead.