The distance is 270 miles, and the drive takes four to five hours in normal traffic

The most direct route from Los Angeles to Las Vegas is Interstate 15 north through the Mojave Desert. You'll cover roughly 270 miles from downtown LA to the Las Vegas Strip. In light traffic — typically early morning or late evening — you can make it in four hours. During peak travel times, especially Friday afternoons and Sunday evenings, the same drive stretches to five or six hours, sometimes longer if there's an accident or weather event on the I-15 corridor.

The drive is straightforward in terms of navigation: you take I-15 north the entire way. There are no major forks or confusing interchanges once you're on the interstate. The road is well-maintained and heavily traveled, so services — gas stations, rest stops, food — are available throughout. What makes this drive challenging is the terrain and the monotony: you're crossing open desert for most of the journey, with little shade and few reasons to stop.

Key Takeaways

  • The drive is 270 miles on I-15 north and takes four to five hours in normal traffic, longer on weekends and holidays.
  • Fuel costs depend on your vehicle's efficiency and current gas prices, but budget roughly $30 to $50 for a one-way trip in a typical sedan.
  • The Mojave Desert stretch is hot and empty; bring water, check your vehicle before leaving, and plan for at least one fuel stop.
  • Cajon Pass, about 60 miles north of LA, is the steepest grade on the route and can slow traffic significantly during peak hours.
  • Tolls do not explore on I-15 between LA and Vegas, but some LA-area freeways charge tolls depending on your route to the interstate.

Fuel costs and vehicle wear for a one-way trip

A typical sedan with 25 to 30 miles per gallon fuel economy will use roughly 9 to 11 gallons of gas to reach Las Vegas from LA. At current gas prices — which vary by location and time — you should budget $30 to $50 for fuel one way. If you're driving a larger vehicle like an SUV or truck with 15 to 20 mpg efficiency, expect to spend $45 to $75 on fuel.

Beyond fuel, the 270-mile drive adds wear to your vehicle. Tires, brakes, and engine oil all degrade over distance. A rough estimate is 15 to 20 cents per mile in total vehicle wear, meaning this trip costs an additional $40 to $55 in depreciation and maintenance. If you're using your personal vehicle for a gig economy job or a business trip, keep track of the mileage for tax purposes — the IRS standard mileage rate for business driving is updated annually and may offset some of your costs.

When to leave and what traffic patterns look like

Friday afternoons and Sunday evenings are the worst times to drive I-15 between LA and Vegas. Friday traffic typically backs up starting around 2 p.m. as weekend travelers head north. Sunday return traffic peaks between 4 p.m. and 8 p.m. as Vegas visitors head home. If you have flexibility, leaving early morning — before 7 a.m. — or mid-week will cut your drive time by 30 to 60 minutes.

Cajon Pass, about 60 miles north of Los Angeles, is the single biggest traffic chokepoint. The interstate climbs steeply here, and trucks slow down significantly. During peak hours, this section alone can add 20 to 30 minutes to your trip. If you're traveling on a Friday or Sunday, expect Cajon Pass to be congested. Weather also matters: wind is common in the pass, and rare rain or snow can close lanes or reduce visibility.

Gas stations and rest stops along the route

You'll find gas stations and food options at regular intervals along I-15. Major stops include Victorville (about 80 miles from LA), Barstow (110 miles), Baker (150 miles), and Primm, Nevada (just over the state line, 230 miles). Most of these are small desert towns with limited options, so don't expect the variety you'd find in a city. Prices at desert gas stations are typically 10 to 20 cents higher per gallon than in Los Angeles or Las Vegas proper.

Rest areas are available at several points, though they're basic — bathrooms, water, and sometimes picnic tables. The drive is long enough that a 10 to 15 minute stop to stretch and use the restroom is worth the time. If you're driving with passengers or making the trip regularly, stopping at Barstow or Baker for a meal or coffee break can break up the monotony and reduce driver fatigue.

Vehicle preparation before the desert drive

Before leaving LA for Vegas, spend 10 minutes checking your vehicle. Make sure your coolant level is full — overheating is the most common roadside breakdown in the desert. Check your tire pressure and tread depth; underinflated tires overheat and fail in the desert heat. Top off your windshield washer fluid, because dust and bugs accumulate quickly on the drive. Bring at least one gallon of water in the car, not just for drinking but for your radiator if it overheats.

If your vehicle is older or has high mileage, consider a pre-trip inspection at a mechanic before making this drive regularly. Brakes, hoses, and belts are the components most likely to fail on a long desert drive. If you break down on I-15 in the Mojave, cell service is spotty in some areas, so having a full tank and a charged phone is essential. AAA membership or roadside information coverage is worth having if you're making this trip frequently.

Tolls, permits, and driving rules

There are no tolls on I-15 between Los Angeles and Las Vegas. However, depending on which route you take to reach I-15 from your starting point in LA, you may encounter tolled sections. The 91 Express Lanes and the 110 Express Lanes charge tolls during peak hours. If you're starting from downtown LA or the west side, you can avoid tolls by using non-express freeway routes, though this adds time.

Once you cross into Nevada, speed limits remain 70 mph on I-15, the same as California. Nevada has the same seatbelt and child safety seat laws as California. If you're renting a vehicle for the trip, check the rental agreement — some companies restrict driving in the desert or charge extra for one-way rentals to Vegas. Your insurance covers you in Nevada the same way it covers you in California, but verify this with your insurer before the trip if you're using a personal vehicle for business purposes.

Alternative routes and when to use them

I-15 is the fastest and most direct route, but it's not the only option. US Route 395 north through the Sierra Nevada mountains is slower — roughly 6 to 7 hours — but avoids the Mojave Desert and offers scenery. This route is useful if you want to break up the drive with a stop in Mammoth Lakes or Lone Pine, or if I-15 is closed due to an accident. However, US 395 is narrower, windier, and can be dangerous in winter.

State Route 58 east from Bakersfield to I-15 near Barstow is another option if you're coming from the central valley, but it doesn't save time from LA. For most travelers starting in Los Angeles, I-15 north is the only practical choice. The desert is monotonous, but the drive is predictable and the road is well-maintained.

Frequently Asked Questions

How much does it cost to drive from LA to Vegas round trip?

Fuel for a round trip in a typical sedan costs $60 to $100. Add vehicle wear at roughly 15 to 20 cents per mile, which comes to $80 to $110 for 540 miles round trip. Total cost is roughly $140 to $210 in fuel and wear, not including tolls to reach I-15 from your LA starting point or parking in Vegas. If you're splitting gas with passengers, divide by the number of people.

Is it cheaper to fly or drive to Vegas from LA?

Driving costs $140 to $210 round trip in fuel and wear. A round-trip flight from LA to Vegas typically costs $100 to $250 per person, plus $15 to $30 for parking at LAX or a rideshare to the airport. Flights save time but not always money, especially if you're traveling with multiple people. Driving makes sense if you want flexibility on when you leave, plan to rent a car in Vegas, or are traveling with a group.

What's the best time of year to make this drive?

Spring (March to May) and fall (September to November) offer the most comfortable temperatures. Summer heat in the Mojave can exceed 110 degrees, which stresses your vehicle and makes the drive uncomfortable. Winter is generally fine, but rare snow or ice on Cajon Pass can close lanes. Avoid holiday weekends — Memorial Day, Labor Day, and the week between Christmas and New Year — when I-15 is heavily congested.

Can I make the drive in one day with stops?

Yes. The drive itself is four to five hours, and with one 15 to 20 minute fuel and bathroom stop, you can reach Vegas in five to six hours total. If you want a longer break for food or to stretch, add another 30 to 45 minutes. Most people make this drive in a single push, though if you're tired or driving at night, a rest stop or overnight stay is safer.

What should I do if my car breaks down on I-15?

Pull as far onto the shoulder as possible, turn on your hazard lights, and stay in the vehicle with your seatbelt on. Call 911 or the California Highway Patrol (non-emergency: 1-800-835-5247). Cell service is spotty in some desert areas, so move to higher ground if you can't get a signal. If you have roadside information, call them. Do not attempt to walk for help in the desert heat.