Kansas City Chiefs quarterback Patrick Mahomes says that bowing out of the postseason with an overtime loss in the AFC Championship Game cannot be seen as a success.

The Chiefs, competing in their third consecutive AFC Championship Game, went down 30-27 in overtime to the Cincinnati Bengals on Sunday.

Mahomes was dominant early with three touchdown passes in the first half as they opened up a 21-3 second-quarter lead, finishing the game completing 26 of 39 attempts for 275 yards.

But the Chiefs, champions two years ago and runners-up last season, let slip their lead with Mahomes' overtime pass intercepted by Vonn Bell before Evan McPherson's game-winning field goal.

"The leaders on this team know this isn't our standard," Mahomes said at the post-game news conference. "We want to win the Super Bowl.

"Whenever you taste winning the Super Bowl, anything less than that is not success. It's definitely disappointing.

"Here, with this group of guys that we have, we expect to be in that game and win that game, and anything less than that is not success.

"We'll go back and look at all the things we did well, the adversity we battled through, the team we became at the end of the season and try to learn from the mistakes we made and try to be better next year.''

Mahomes threw 11 touchdown passes in the postseason but the Chiefs were undone in defense against the Bengals, conceding 55 points in their two losses to the AFC champions across the season.

"Unfortunately this is final and that's where we sit now," Chiefs head coach Andy Reid said at the post-game news conference.

"Our players are disappointed obviously. They've put a lot of time and effort into this, putting themselves into this position for a Championship Game, I'm proud of that."