Is it a scenic route?

Yes, the mountain pass and river valley views are quite beautiful.

No, there are no tolls on this route.

What are the Tri-Cities?

Kennewick, Pasco, and Richland make up the Tri-Cities area.

Is it safe to drive in winter?

Yes, but be prepared for snow on the mountain passes.

Olympia

Kennewick

Driving

Olympia to Kennewick

Updated: 28 May 2026

The trip from Olympia to Kennewick covers 360 kilometers, primarily using I-5 South to I-82 East. This route takes you through the heart of Washington, crossing the Cascade Mountains via the Yakima Valley. Expect a driving time of approximately four hours. The journey transitions from the wet climate of the Puget Sound to the semi-arid, sunny climate of the Tri-Cities. It is a major transit route for commerce and tourism in the state.

Total Distance: 360 km driving, 280 km air distance.

Fastest Way

Driving via I-82 is the fastest route at 4 hours.

Cheapest Way

Driving is the most economical way to reach Kennewick.

Compare Olympia to Kennewick Routes

Driving

Direct

Duration

4 hours

Avg Price

$50-$70 in fuel

Operator

Personal Vehicle

Route

I-5 South to I-82 East through Yakima.

Use cruise control on the long stretches of I-82 to maintain fuel efficiency.

Travel Tips

Wind Awareness
The Tri-Cities area can be very windy; keep a firm grip on the steering wheel.
Sun Protection
The sun is intense in Eastern Washington; wear sunscreen.
Traffic
Avoid the I-82/I-182 interchange during rush hour.
Dining
Try the local Mexican cuisine, which is highly regarded in the region.
Lodging
Book hotels in advance if visiting during major regional events.

Safety Tips

Dust Storms
Be prepared for sudden dust storms that can reduce visibility to zero.
Speed Limits
Observe speed limits strictly on I-82, as patrols are frequent.
Hydration
Drink plenty of water to combat the dry desert air.
Vehicle Check
Ensure your cooling system is in good condition for the desert heat.