Calculate route from Hermiston (Oregon, United States) to Mercer Island (Washington, United States).

The flight distance (as the crow flies) between Hermiston and Mercer Island is 294.8 km.

Roadmap (route) to go from Hermiston to Mercer Island detailed above, you can also see the course layout on the map.

While doing trip Hermiston - Mercer Island by car, the calculated route ends at a distance , or more straight.