The Philadelphia Eagles' flight from last to first ended up with a Lombardi Trophy.
In a record-setting shootout between Nick Foles and Tom Brady, the back-up quarterback led a pressure-packed 75-yard drive to the winning touchdown, 11 yards to Zach Etrz with 2:21min to got
Then a defence that had been shredded throughout the second half made two final stands to win 41-33.
Brandon Graham strip-sacked Brady and Derek Barnett recovered, setting up rookie Jake Elliot's 46-yard field goal for an 8-point lead.
Brady got his team to midfield, but his desperation pass fell to the ground in the end zone.
The underdog Eagles, even injured starting quarterback Carson Wentz, came bolting off the sideline in ecstasy while Brady sat on the ground, disconsolate.
It was the first Super Bowl title for Philadelphia, which went from 7-9 last season to the franchise's first NFL title since 1960.
"If there's a word (it's) called everything," Eagles owner Jeffrey Lurie said.
"That's what it means to Eagles fans everywhere. And for Eagles fans everywhere, this is for them."
Super Bowl MVP Foles orchestrated the victory with the kind of drive NFL MVP Brady, a five-time champion, is known for.
The drive covered 14 plays, including a fourth-down conversion.
"I felt calm. I mean, we have such a great group of guys, such a great coaching staff," Foles said.
"We felt confident coming in, and we just went out there and played football."
The Eagles had to survive a video replay because Ertz had the ball pop into the air as he crossed the goal line.
"If they would have overturned that, I don't know what would have happened to the city of Philadelphia," Ertz said.
"But I'm so glad they didn't overturn it."
The touchdown stood - and so did thousands of green-clad Eagles fans who weren't going to mind the frigid conditions outside US Bank Stadium once they headed out to celebrate.
The Patriots seemed ready to take their sixth championship with Brady and coach Bill Belichick in eight Super Bowls.
Brady threw for a play-offs record 505 yards and three TDs, hitting Rob Gronkowski for four yards before Stephen Gostkowski's extra point gave New England a first lead, 33-32.
Then Foles made them forget Wentz - and least for now - with the gutsiest drive of his life, including a fourth-down conversion to Ertz at midfield.
Foles has been something of a journeyman in his six pro seasons, but has been spectacular in four career playoff games. He finished 28 of 43 for 373 yards and three TDs.
The combined 1,151 yards were the most in any modern NFL game.
It was such a wild game that Foles became the first quarterback to catch a touchdown pass in Super Bowl history after a gutsy call by coach Doug Pederson, and Brady was on the opposite end of a Danny Amendola throw that went off his fingertips.
