Book the Alhambra 3–4 weeks out, not 3–4 days
Nasrid Palace slots disappear fast from April through October. The Patronato releases new availability at 08:00 Spanish time three months ahead — set a calendar reminder. If you find the standard ticket sold out, check for the Dobla de Oro combo or the night visit separately; these run on different allocation pools and sometimes have slots when the day ticket does not. Book at alhambra-patronato.es only.