How many Super Bowls have the Seahawks lost?

The Seattle Seahawks have appeared in three Super Bowls and won once. Here are the results (victories in bold):

  • Super Bowl LX (2-5-06) -- Pittsburgh Steelers 21, Seattle 10.
  • Super Bowl XLVIII (2-2-14) -- Seattle 43, Denver Broncos 8.
  • Super Bowl XLIX (2-1-15) -- New England Patriots 28, Seattle 24.