The biggest conference championship upsets in NFL history

Nothing is guaranteed in the NFL — not even a trip to the Super Bowl. Here are the most shocking upsets in conference championship history.

January 20, 2013: Baltimore Ravens 28, New England Patriots 13

(Mitch Stringer-USA TODAY Sports)

This was the penultimate postseason performance for Joe Flacco on a hot streak few quarterbacks have ever seen. Baltimore’s then-franchise quarterback threw 11 touchdown passes and no interceptions in four playoff games that season, and he threw three of those to get the Ravens away from a game Patriots team favored by 7.5 points. New England had a 13-7 advantage at the half, at which point Flacco hit tight end Dennis Pitta once and receiver Anquan Boldin twice with scoring darts. The Ravens continued their successful season, and picked up the second Super Bowl win in franchise history, with a 34-31 win in Super Bowl XLVII. Flacco, the game’s Most Valuable Player, threw three more touchdown passes, leading to a massive contract the franchise would come to regret in time.