Spain does not impose any requirements for travelers who come from the European Union or the Schengen area, although a certificate of vaccination, a certificate of passage of illness or a negative test is required for those who come from areas outside the European Union.
In these cases as in France or Malta, Spain requires a certificate with the complete vaccination schedule for this last category of travelers, as well as a negative PCR (72 hours before the flight) or a rapid antigen test (24 hours). It is also possible to demonstrate recovery from the epidemic in the past six months