Boise · the midpoint
Boise is the capital and most populous city in the U.S. state of Idaho. It is the county seat of Ada County. The population of the city was 235,685 at the 2020 census. Read more →
The fair place to meet is Boise, ID — the city closest to the midpoint of Portland and Seattle. From the farther side that’s about 8 hr 29 min of driving.
Recommended midpoint
Boise, ID
From Portland
7 hr 14 min
345 mi to Boise
From Seattle
8 hr 29 min
405 mi to Boise
Portland has the shorter trip; the split is off by about 1 hr 15 min. The alternatives below can even it out. Portland and Seattle are about 145 miles apart.
Portland and Seattle are about 145 miles apart by road. Split the difference and you arrive near Boise, the city closest to the halfway point between them. That puts roughly 7 hr 14 min of driving on the Portland side and 8 hr 29 min on the Seattle side — the fairest single meeting point among the cities near the middle.
At this range, Boise works for a same-day meetup: close enough from both Portland and Seattle to meet for lunch or an afternoon and still be home by evening.
If Boise doesn't have what you're after, Sacramento and San Francisco are also close to the midpoint and worth a look — each keeps the drive reasonably balanced between Portland and Seattle.
Boise is the capital and most populous city in the U.S. state of Idaho. It is the county seat of Ada County. The population of the city was 235,685 at the 2020 census. Read more →
Portland is the most populous city in the U.S. state of Oregon. Located in the Pacific Northwest at the confluence of the Willamette and Columbia rivers, it is the 28th-most populous city in the United States, sixth-most populous on the West Coast, and… Read more →
Seattle is the most populous city in the U.S. state of Washington and the Pacific Northwest region of North America. Read more →
City descriptions adapted from Wikipedia (CC BY-SA); photos via Wikimedia Commons, credited above.
Estimates use straight-line distance and typical road speeds; real drive times vary with route and traffic.