Bengals (twice), Dolphins, and Broncos.
Giants Redskins 49ers
bengals dolphins broncos chargers
Cincinnati Bengals in Super Bowls XVI and XXIII, Miami Dolphins in Super Bowl XIX, and Denver Broncos in Super Bowl XXIV.
The Buffalo Bills in the 1993-1994 Super Bowls.
2.
In 1999 they beat the atlanta falcons
Vikings, Eagles and Redskins.
patriots and bills
Super Bowl XII -XIVThe Dallas Cowboys beat the Denver Broncos 27-10 in Super Bowl XII played on January 15, 1978.The Pittsburgh Steelers beat the LA Rams 27-10 in Super Bowl XIV played on January 20, 1980.
Tom Brady beat the Rams in Super Bowl 36, the Panthers in 38, and the Eagles in 39
Buffalo Bills
The Dallas Cowboys did not play two consecutive losing Super Bowls. However, they were beaten in their two appearances against the Pittsburgh Steelers in Super Bowls X and XIII. Between those two, Dallas beat the Denver Broncos in Super Bowl XII. (Dallas finally beat the Steelers in Super Bowl XXX, but are one victory behind Pittsburgh.)(see the related concise list question)