Fiesta of Montellano 2018 from August 23 to August 25. Past days. Thursday, August 23 Friday, August 24 Saturday, August 25 Sunday, August 26 You might be also interested in: Big Week 2018 - Bilbao - 26 Kms. Fiesta of San Bartolome 2018 - San Bartolome - 18 Kms. Flower Battle 2018 - Laredo (Cantabria) - 35 Kms. Saint Bartholomew 2018 - Argomilla (Cantabria) - 86 Kms. Fiesta of Arriola 2018 - Arriola (Alava) - 99 Kms.