The journey from Pendleton to Missoula covers approximately 550 kilometers. Driving via I-84 and I-90 East is the most direct route, taking about 5.5 to 6 hours through the scenic landscapes of Idaho and Montana. This route takes you through the heart of the Rocky Mountains.
Total Distance: 550 km driving distance; 450 km straight-line air distance.
Expect mountain driving conditions.
Summer and early fall are best to avoid snow in the winter.