Hernani is well-connected by various modes of transportation, making it easy to access for both domestic and international visitors. The nearest airport is San Sebastián Airport, located about 25 kilometers away, with connections to major Spanish cities like Madrid and Barcelona, as well as some European destinations. For international travelers, Bilbao Airport, located about 90 kilometers away, offers a broader range of flights.
The town is also accessible by train, with regular services from San Sebastián, as well as long-distance trains that connect the Basque Country with other parts of Spain. Hernani is conveniently located along major highways, making it easy to reach by car or bus from nearby cities like San Sebastián, Bilbao, and Pamplona. Public buses also run frequently between Hernani and surrounding towns.
Once in Hernani, visitors can easily explore the town on foot, as its compact size makes it highly walkable. For those wishing to explore further afield, rental cars and bicycles are readily available, allowing easy access to the beautiful countryside and coastal areas nearby.