14 teams have never won a Super Bowl. 7 in each Conference.
4 teams have never been to a Super Bowl. They are Cleveland, Jacksonville, Detroit, and Houston. Every other team has at least played in one.
Cleveland, Jacksonville, and Detroit are out of the playoff picture and won't get a chance to break that streak this year.
Houston will not break it either. Yes, I am predicting they will not go to the Super Bowl despite having the best record in the NFL this year.