Trains that REQUIRE an additional reservation fee
Trains that DON'T REQUIRE an additional reservation fee
EuRail - Reservation and supplement - Spain
Some trains require an extra reservation fee, despite the Eurail Pass. Information about where to buy these reservations and how to avoid them can be found here.
EuRail | Reservation and supplement | Spain
The following types of trains require an extra reservation or extra charge.
A reservation always includes the extra charge and the seat reservation.
Alta Velocidad Española (AVE) RENFE EuRail: reservation required 2nd class: EUR 101st class: EUR 10/23,50/38
Important: the given prices may vary due to service or handling fees. Depending on whether you purchase the reservations/tickets online, at a ticket machine or at a railway station.