From Alicante
airport you will want to head for Madrid, Albecete  road, A-31/N-330. Next you turn onto the A-35/N-430 to Valencia. Take the  turning to Xativa/ Llosa de Ranes and at the second round about you are entering Xàtiva . The whole journey should take around 1 and a quarter hours.
From Valencia
Airport you head towards Alicante, keep following Alicante signs untill you see two choices. Alicante por la costa (coast) and Alicante por la interior. Take the interior road and you are only 40kms to Xàtiva. Take the Xàtiva turn off and at the secound round about, you are entering Xàtiva. The whole journey should take around 40 minutes.