There's an excellent LP by Lionel Hampton, Jazz Flamenco, recorded in Madrid. The LP is also on RCA, and is copyright 1957.
More recently, Nino Josele, a Spanish flamenco guitarist, has been working on fusing flamenco and jazz. He focuses on songs associated with Bill Evans. His excellent 2007 release was Paz.
http://www.amazon.com/Paz-El-Nino-Josele/d...1918&sr=1-1
I was lucky enough to get to see Nino Josele perform at the Village Vanguard last year with a quartet, two Spanish musicians, plus Esperanza Spalding on bass and vocals. It was very compelling (even better than the recording).