The drive from Puyallup to Richland is approximately 355 kilometers, taking about four hours via I-90 East and I-82 East. You will cross the Cascade Mountains at Snoqualmie Pass before descending into the Columbia Basin. Richland is part of the Tri-Cities and is known for its scientific history and riverfront recreation. The route is a major artery connecting the Puget Sound to Eastern Washington's agricultural and industrial centers.
Total Distance: 355 km driving distance; 250 km straight-line air distance.
Check WSDOT for pass conditions before departing.
Late spring and early autumn offer the most pleasant weather for outdoor activities.