The nearest airport is EAS - San Sebastian, located 44.0 km north east of Oñatz.
Other airports nearby include VIT - Vitoria (48.9 km south west), BIO - Bilbao (54.4 km west), PNA - Pamplona (67.1 km south east), BIQ - Biarritz-bayonne Anglet (69.0 km north east),