Memorial Day is one of the biggest travel days of the year, which means Las Vegas is expected to see higher traffic volumes than normal over the holiday weekend.
The traffic congestion will be at its peak on Monday, when travelers are heading back to Southern California on Interstate 15.
The Regional Transportation Commission expects the heaviest travel delays on I-15 southbound between Las Vegas and the California border to occur between 10 a.m. and 2 p.m. Monday.
The I-15 southbound near the Nevada-California border saw 41,441 vehicles on Memorial Day in 2024 and 40,908 last year, according to the RTC. The total annual daily volume on I-15 northbound and southbound combined in 2024 was 44,000 and 41,500 in 2025.
