Fiesta of Ansoain 2022 from September 14 to September 18. Past days. Thursday, September 15 Friday, September 16 Saturday, September 17 Sunday, September 18 You might be also interested in: September Fiesta 2022 - Mutilva - 6 Kms. Holy Cross 2022 - Zizur Mayor - 8 Kms. Fiesta of Loza 2022 - Loza - 9 Kms. Fiesta of Jolastokieta 2022 - Alza (Gipuzkoa) - 67 Kms.