The drive from Castaic to Portland is a 950-mile trip using the I-5 North. You will travel through the scenic landscapes of California and Oregon. Travel time is typically 15 hours, though it can vary based on traffic and weather. This route is a major connection between Southern California and the Pacific Northwest. It is a beautiful drive with significant mountain and coastal scenery.
Total Distance: 1500 km driving distance; 1300 km straight-line air distance.
The I-5 through the Pacific Northwest is beautiful but can be rainy; be prepared for wet conditions.
Summer and early Fall offer the best conditions for driving through the mountains.