The drive from Lee's Summit to Las Vegas, Nevada, is approximately 2,200 kilometers and takes about 22 hours via I-70 W and I-15 S. This route takes you through Kansas, Colorado, Utah, and Nevada. It is a long but straightforward highway drive. Be prepared for changing weather conditions, especially in the mountains.
Total Distance: 2,200 km driving, 2,000 km straight-line.
I-15 can be very busy near Las Vegas; plan your arrival accordingly.
Spring or Fall for comfortable outdoor sightseeing.