Eleven. 1903, 1904, 1912, 1915, 1916, 1918, 1946, 1967, 1975, 1986, and 2004. The Red Sox record in World Series is 6-5.
The Yankees have won 40 American League pennants.
The Oakland A's have won 15 American League Pennants in their history.
As of the 2008 season, the White Sox have won six American League pennants: 1901, 1906, 1917, 1919, 1959, 2005
The Boston Red Sox won 12 American League Pennants.
The Yankees have won 40 American League pennants.
Since 1950, the Yankees have won 24 American League pennants.
The Yankees played in 43 American League Championship Series and won 40 pennants.
The Yankees played in 43 American League Championship Series and won 40 pennants.
The Yankees won 40 American League pennants.
The Minnesota Twins have won six American League pennants:1924, 1925, 1933, 1965, 1987 and 1991
None since the Twins play in the American League. The franchise, in total, has won 6 pennants, three as the Washington Senators (1924, 1925, 1933) and three as the Minnesota Twins (1965, 1987, 1991).
Through 2010, the Yankees have won 40 American League pennants and the Boston Red Sox won 12.