Irun to León train with Renfe ALVIA

Renfe Alvia are high-speed trains with top speeds of up to 250km/h operated by Renfe, Spain’s national railway company. Alvia trains cover most cities in Spain, including Madrid, Barcelona, Bilbao, Valencia, Alicante, Zaragoza and Cadiz. They are somewhat slower than Renfe AVE and AVLO (high-speed and low cost) but cover more destinations and are a comfortable and effective way of travelling around Spain. Onboard facilities include free WIFI, bike storage and luggage allowance. Alvia trains have two seat classes – Estándar and Confort. Top routes for Renfe Alvia include Barcelona to Pamplona, Madrid to Cádiz and Alicante to Gijón.

Renfe MD, or Media Distancia (Mid-distance), is a division of Spain's national railway company, Renfe, specializing in regional train services. These trains connect cities and towns within the same autonomous community or between contiguous communities, typically covering distances under 300 km. Renfe MD operates various train types, including modern regional services with amenities like power sockets and reading lights, and high-speed Avant trains that reach up to 250 km/h on shorter, high-speed routes. While not as fast as long-distance AVE trains, Renfe MD offers extensive coverage across Spain, providing essential regional connections.