Vera, 29, won by unanimous decision.
The bantamweight bout lasted five rounds.
During the fight, Font was knocked down four times.
Vera has 20 wins, seven losses and one draw.
Font has 19 wins and six losses.
In another bout of the evening, former UFC champion Belarusian Andrey Orlovsky defeated American Jake Collier.
Earlier it was reported that the UFC banned fighters from entering the octagon with national flags.