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 Las Vegas and Seattle. From the farther side that’s about 10 hr 51 min of driving.
Recommended midpoint
Boise, ID
From Las Vegas
10 hr 51 min
517 mi to Boise
From Seattle
8 hr 29 min
405 mi to Boise
Seattle has the shorter trip; the split is off by about 2 hr 22 min. The alternatives below can even it out. Las Vegas and Seattle are about 872 miles apart.
Las Vegas and Seattle are about 872 miles apart by road. Split the difference and you arrive near Boise, the city closest to the halfway point between them. That puts roughly 10 hr 51 min of driving on the Las Vegas side and 8 hr 29 min on the Seattle side — the fairest single meeting point among the cities near the middle.
Over this distance most people will fly rather than drive the whole way. Boise still makes a fair, central place for Las Vegas and Seattle to converge, splitting the travel instead of asking one side to cross the country.
If Boise doesn't have what you're after, Sacramento and Portland are also close to the midpoint and worth a look — each keeps the drive reasonably balanced between Las Vegas 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 →
Las Vegas, colloquially shortened to Vegas, is the most populous city in the U.S. state of Nevada and the county seat of Clark County. It is the 24th-most populous city in the United States, with 641,903 residents at the 2020 census. 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.