Salt Lake City · the midpoint
Salt Lake City, often shortened to Salt Lake or SLC, is the capital and most populous city of the U.S. state of Utah. It is the county seat of Salt Lake County, the most populous county in the state. Read more →
The fair place to meet is Salt Lake City, UT — the city closest to the midpoint of Boise and Las Vegas. From the farther side that’s about 7 hr 36 min of driving.
Recommended midpoint
Salt Lake City, UT
From Boise
6 hr 12 min
296 mi to Salt Lake City
From Las Vegas
7 hr 36 min
363 mi to Salt Lake City
Boise has the shorter trip; the split is off by about 1 hr 24 min. The alternatives below can even it out. Boise and Las Vegas are about 517 miles apart.
Boise and Las Vegas are about 517 miles apart by road. Split the difference and you arrive near Salt Lake City, the city closest to the halfway point between them. That puts roughly 6 hr 12 min of driving on the Boise side and 7 hr 36 min on the Las Vegas side — the fairest single meeting point among the cities near the middle.
That's a half-day drive from each side, so Salt Lake City suits an overnight or a weekend rather than a quick coffee — long enough to want a reason to stay, short enough to drive.
If Salt Lake City doesn't have what you're after, Sacramento and San Jose are also close to the midpoint and worth a look — each keeps the drive reasonably balanced between Boise and Las Vegas.
Salt Lake City, often shortened to Salt Lake or SLC, is the capital and most populous city of the U.S. state of Utah. It is the county seat of Salt Lake County, the most populous county in the state. Read more →
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 →
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.