1992 Bills, return to the Super Bowl

1993 Bills, go 7-9 no playoff

1994 Chargers, lose in wild card round

1995 Steelers, lose in division round

1996 Pats, lose in division round

1997 Packers, lose in wild card round

1998 Falcons, go 5-11, no playoffs

1999 Titans, lose in divisin round

2000 Giants, 7-9, no playoffs

2001 Rams, 7-9, no playoffs

2002 Raiders, 4-12, no playoffs

2003 Panthers, 7-9, no playoffs

2004 Eagles, 6-10, no playoffs

2005 Seahawks, lose in division round

2006 Bears, 7-9, no playoffs

2007 Pats, 11-5, but no playoffs

2008 Cards, lose in division round

2009 Colts, lose in wild card round

2010 Steelers, lose in wild card round

Throughout Super Bowl history only the 1970 SB losing Cowboys and the 1971 SB losing Dolphins ever came back the next year to win the Super Bowl...Cowboys in 1971, Phins in 1972.

The only Super Bowl losing teams to come back to lose the Super Bowl again the next year were the 1986-1987 Broncos, and of course those 1991,1992,1993,1994 Bills.

I did not go back before 1992 to see which SB losing teams may have returned to a conference championship game, only to lose it. I suspect there were a few.