Jim Kelly was intercepted four times as the Bills dropped their second straight Super Bowl. (AP)
Mark Rypien passed for 292 yards and two touchdowns as the Redskins overwhelmed the Bills to win their third Super Bowl in the past 10 years.
Rypien, the game's most valuable player, completed 18 of 33 passes, including a 10-yard scoring strike to Earnest Byner and a 30-yard touchdown to Gary Clark. The latter came late in the third quarter after Buffalo had trimmed a 24-0 deficit to 24-10, and effectively put the game out of reach.
Washington went on to lead by as much as 37-10 before the Bills made it close wih a pair of touchdowns in the final six minutes.
Though the Redskins struggled early, converting their first three drives inside the Bills' 20-yard line into only three points, they built a 17-0 halftime lead. And they made it 24-0 just 16 seconds into the second half, after Kurt Gouveia intercepted Buffalo quarterback Jim Kelly's pass on the first play of the third quarter and returned it 23 yards to the Bills' 2.
One play later, Gerald Riggs scored his second touchdown of the game to make it 24-0. Kelly, forced to bring Buffalo from behind, completed 28 of a Super Bowl-record 58 passes for 275 yards and two touchdowns, but was intercepted four tlmes.
Bills running back Thurman Thomas, who had an AFC-high 1,407 yards rushing and an NFL-best 2,038 total yards from scrimmage during the regular season, ran for only 13 yards on 10 carries and was limited to 27 yards on four receptions.
Clark had seven catches for 114 yards and Art Monk added seven for 113 for the Redskins, who amassed 417 yards of total offense while limiting the explosive Bills to 283.
Washington's Joe Gibbs became only the third head coach to win three Super Bowls.