Like the previous NFL seasons, the home teams in the playoffs were decided based on a yearly divisional rotation, excluding the wild card teams who would always play on the road. It was the first time that the NFL scheduled games on Christmas Day, a decision that drew considerable criticism.

Within each conference, the three division winners and one wild card team (the top non-division winner with the best overall records of all remaining teams in the conference) qualified for the playoffs. The NFL did not use a seeding system until the 1975 season, and instead home teams during the first two rounds of the playoffs alternated by division. Thus it was possible for a team to host another club with a better regular season record. For the Super Bowl, the third and final round played at a neutral site, the designated home team was based on an annual rotation by conference.

In the longest NFL game played to date at 82 minutes, 40 seconds (and the Chiefs' last-ever game at Municipal Stadium), Miami kicker Garo Yepremian kicked the winning 37-yard field goal after 7:40 of the second overtime period.

The Chiefs opened up the scoring with Jan Stenerud's 24-yard field goal. Then Chiefs defensive back Willie Lanier intercepted a pass from Bob Griese and returned it 17 yards to set up Len Dawson's 7-yard touchdown pass to Ed Podolak, increasing the lead to 10–0. However, Griese rallied the Dolphins back on their next drive, completing a 23-yard pass to Paul Warfield and a 16-yarder to tight end Marv Fleming on the way to Larry Csonka's 1-yard touchdown run. Shortly before halftime, the Dolphins defense recovered a fumble from Podolak deep in Chiefs territory, enabling Garo Yepremian to kick a 14-yard field goal to tie the game, 10-10.

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