Patrick Mahomes put Sunday's incredible win for the Kansas City Chiefs among his career highlights as he propelled his team to within one victory of a third straight Super Bowl appearance.

A thrilling contest between the Chiefs and the Buffalo Bills was settled in Kansas City's favour when Mahomes found Travis Kelce for a game-winning touchdown in overtime.

The Chiefs have now reached the AFC Championship for the fourth straight season, as they look to go on and replicate their Super Bowl success from two years ago.

Buffalo seemed to have the game tied up in regulation time when Josh Allen picked out Gabriel Davis for a record-breaking fourth touchdown with just 13 seconds left on the clock, making it 36-33 to the Bills.

Yet Mahomes got the Chiefs within field-goal range and Harrison Butker did the rest to send the roller coaster encounter into overtime.

Mahomes – who completed 33 of 44 attempts for 378 yards with three touchdowns as well as getting into the endzone himself for the Chief's first TD – then kept his composure to find Kelce in the corner four minutes and 15 seconds into overtime after Kansas City had won the coin flip.

"To be in this moment in this game against that team, to make a play to walk off a game at Arrowhead, I'll remember this game for the rest of my life.

"It was definitely special to win a game like this at Arrowhead. Obviously the Super Bowl was probably number one for me but this one is right up there.

“To be able to come back a couple of times, get points when we needed to get points, score touchdowns, get in field goal range, I'll remember it forever."

Asked what words of wisdom he offered to the Chief's talisman before overtime, head coach Andy Reid replied: "When it's grim, be the Grim Reaper and go get it.

"He did that. He made everyone around him better, which he's great at, and he just does it effortlessly. When it gets tough, he's going to be there battling."

"This is definitely another step for him into the Hall of Fame," Mahomes' team-mate Tyreek Hill added of the QB.

"He had the chance to prove once again he's at the top of when it comes to quarterbacks in this league.

"He definitely doesn't flinch, especially in moments like that."

Across 17 regular-season appearances in 2021, Mahomes threw for 37 touchdowns, tied for fourth in the NFL alongside Dak Prescott and Aaron Rodgers.

Only Matthew Stafford (4,886), Justin Herbert (5,014) and the league-leading Tom Brady (5,316) had a higher yardage than Mahomes' 4,839 in the regular season, with just Herbert and Brady completing more passes in total.

Mahomes has already accumulated eight touchdowns this postseason, doubling his tally from last year and is just two shy of his previous postseason best of 10, set in the Chief's triumphant 2019 campaign.

Kansas City will face Cincinnati in the AFC Championship game, with the Bengals having won 34-31 in the most recent meeting between the teams on January 2, a defeat that snapped an eight-game winning streak for the Chiefs.