Yes, the drive over the Cascades is very beautiful.

How long is the drive?

It takes about 3.5 hours of driving time.

No, there are no tolls on this route.

Yes, there are bus options, but driving is much faster.

What is the best time to leave?

Leaving mid-morning helps you avoid the worst of the traffic.

Issaquah

Tri-Cities

Driving

Issaquah to Tri-Cities

Updated: 28 May 2026

The drive from Issaquah to the Tri-Cities (Kennewick, Pasco, Richland) is a 350-kilometer journey heading east on I-90 and south on I-82. You will cross the Cascade Mountains via Snoqualmie Pass before descending into the Columbia Basin. This route is a major east-west corridor. The drive typically takes 3.5 hours, though weather on the pass can significantly increase this time.

Total Distance: 350 km driving distance; 280 km air distance.

Fastest Way

Driving is the only practical mode for this distance.

Cheapest Way

Driving your own vehicle is the most cost-effective and convenient method.

Compare Issaquah to Tri-Cities Routes

Driving

Direct

Duration

3.5 hours

Avg Price

$60-$80 in fuel

Operator

Personal Vehicle

Route

I-90 East to I-82 East.

The drive over Snoqualmie Pass is beautiful but can be challenging in winter.

Travel Tips

Snoqualmie Pass
Check WSDOT cameras before leaving, as winter storms frequently impact this pass.
Parking
Tri-Cities has plenty of parking, but check for event parking near the downtown area.
Weather Prep
Tri-Cities is much drier than Issaquah; stay hydrated.
Fuel Stops
Fill up in Issaquah before you leave to avoid higher prices in the city.
Public Transit
Ben Franklin Transit provides bus service within Tri-Cities if you prefer not to drive.

Safety Tips

Mountain Driving
Use lower gears when descending steep grades to prevent brake overheating.
Emergency Kit
Keep a basic emergency kit in your car, even for short trips.
Driver Fatigue
The drive is relatively long, so take breaks as needed.
Vehicle Maintenance
Ensure your tires are properly inflated for the highway drive.