If you're a non-preferred there are blackout dates all around thanksgiving.

The return date of 11/28 is throwing off the award.

From the US Website:

For the Caribbean:

Southbound (from the U.S.)
January 3*, 4*
February 14*, 15*, 21*, 22*
April 8-12*, 17*, 18*
November 20
December 18, 22, 23, 24, 26

Northbound (to the U.S.)
January 3*, 4*
February 14*, 15*, 21*, 22*
April 8-12*, 17*, 18*
November 27, 28

-JC