JOIN USFourth-placed Villarreal twice came from behind to rescue a 2-2 draw at Racing Santander and Valencia's victory stretched their lead over their local rivals to four points with 25 matches played. Valencia have 51 points, 10 behind second-placed Real Madrid. Barca lead the tablewith 68 points.
At a typically boisterous San Mames, Bilbao looked set to end a run of two straight defeats when Spain striker Fernando Llorente put the home side ahead in the 14th minute.
However, Llorente's international team mate Juan Mata levelled in the 71st after good work from winger Joaquin before Brazilian Jonas pounced on the rebound from a Tino Costa shot to grab the winner with around 10 minutes left.
Villarreal had earlier failed to build on their Europa League victory over Serie A side Napoli. Juan Carlos Garrido's side have not won in their last four league games, losing twice and drawing 1-1 at home to bottom club Malaga. Racing, meanwhile, are undefeated since Indian businessman Ahsan Ali Syed completed his takeover of the club at the end of January and stayed in 12th on 29 points, five clear of the relegation places.