For more information, click here. â¢ Passports and travel documents are required to be valid during the duration of the visit. You do not need a minimum of validity in your passport or travel document to travel to Spain. â¢ Children included in the parentâs passport must be accompanied by the parent. The childâs right to travel on the passport will lapse depending on the age stipulated by the issuing country and be under 16 years of age.