Best Route from Los Angeles to Las Vegas: I-15 and More

The Best Route from Los Angeles to Las Vegas: I-15 vs Alternatives

Taking I-15 Through the Mojave

For almost everyone making this trip, I-15 is the obvious choice. It runs fairly straight from the Los Angeles area, through the Cajon Pass, past Barstow, and across the Mojave Desert before crossing into Nevada near Primm. There’s little reason to deviate from it unless you’re chasing a specific detour, since it’s the most direct path and the one with the most services along the way: gas stations, rest stops, and fast food are all easy to find.

Alternative Routes via Barstow or Route 66

Some travelers choose to peel off onto older roads like historic Route 66 segments near Barstow or Victorville for a slower, more scenic pace. These detours add time rather than saving it, so they’re best treated as a planned stop rather than a true alternative route. If you’re curious about what else sits along the corridor, our breakdown of things to see between Los Angeles and Las Vegas covers the towns and attractions worth a short detour.

How Long Does the Drive Take?

Average Drive Time and Distance

The distance is about 270 miles, and under normal conditions the drive takes close to four hours. That number can stretch considerably once you factor in traffic, rest breaks, or a stop for food. For a fuller look at mileage, drive time, and where people usually pause along the way, see our guide on how far Los Angeles is from Las Vegas.

Timing Around Traffic

Traffic is the biggest variable on this route. Friday afternoons and Sunday evenings are notoriously congested as weekend travelers flood I-15 in both directions, and the stretch near Barstow is a frequent bottleneck. Leaving earlier in the day, or avoiding peak weekend windows altogether, can save real time. We’ve laid out seasonal and time-of-day patterns in more detail in our article on the best time to drive from Los Angeles to Las Vegas.

Best Stops Along the Way

Top Towns and Attractions

A handful of towns along I-15 make for worthwhile breaks. Barstow is a common midpoint stop with outlet shopping and easy highway access, while towns like Baker (home of a famously tall thermometer sign) offer a quirky photo stop and gas before the final desert stretch into Nevada. If you want a fuller picture of your options for stops, our guide to planning a road trip from Los Angeles to Las Vegas walks through the route end to end.

Food, Rest, and Fuel Stops

Because much of this drive crosses open desert, it’s smart to fuel up and grab food before long gaps between services, particularly past Baker. Rest areas are spaced out but present, so planning around them rather than hoping one appears when you need it keeps the trip comfortable.

Planning Your Route with Journey Builder

Why Automated Planning Helps

Even a straightforward drive like this benefits from a bit of planning, especially if you want to work in a stop or two without losing track of timing. Journey Builder builds the route for you automatically, complete with distance and drive time for every leg and alternative routes if you’d rather avoid highways or take a scenic detour. It also ranks towns along your path and suggests stops, showing how far off-route each one is and how much of a detour it adds, so you can decide in seconds whether that quirky roadside attraction is worth the extra fifteen minutes.

Ready for Your Trip