Waikīkī to Mililani and Wahiawā

Take H-1 West to H-2 North (exit 8B). Mililani exits come up a few miles after the split, and H-2 continues to Wahiawā.

• H-1 West from Waikīkī.
• Exit 8B for H-2 North toward Mililani and Wahiawā.
• Mililani has its own exits off H-2; Wahiawā is where H-2 ends and becomes Kamehameha Highway.
• Weekday afternoons, H-2 northbound has an HOV lane (2 or more people) 3:30 to 6 p.m. from the Waiawa Interchange to Mililani.
• Mornings toward town, H-2 southbound has an HOV lane 5:30 to 9 a.m.

Sources: Interstate H-1 route and exits (Wikipedia) · Hawaiʻi DOT: Special use lanes (HOV, zipper, contraflow)

Last checked Oct. 29, 2026. Hours, fees and rules can change, so confirm with the official source before you go.