How Long Is the Drive from Las Vegas to San Diego?
The drive from Las Vegas to San Diego takes approximately 4h 45min, covering 330 miles via I-15. Under normal conditions, expect to spend around $38 on gas.
Travel time can vary — during peak hours, weekends, or holidays, the journey may take 6–7+ hours. For the fastest trip, leave early morning (before 7 AM) or travel on weekday evenings.
Traffic Estimate
🟢 Light traffic
4h 2m
🔵 Typical
4h 45min
🔴 Heavy traffic
6h 53m
Traffic is usually worst during weekday rush hours (7–9 AM, 4–7 PM) and holiday weekends.
Trip Details
Distance330 miles (531 km)
Drive Time4h 45min
RouteI-15
Best TimeEarly morning (6-8 AM)
Fuel Costs
Gas (30 mpg)~11.0 gallons
Est. Cost$38
Route Tips: I-15
The Vegas highway. Friday/Sunday traffic between LA and Vegas can be extreme — plan accordingly.
This trip can typically be done on a single tank of gas.
Best Time to Drive from Las Vegas to San Diego
The best time to drive from Las Vegas to San Diego is early morning (6-8 am). Weekday mornings before 7 AM or evenings after 7 PM typically have the lightest traffic. Avoid Friday afternoons and Sunday evenings when possible.
🟢 Best:Early morning (6-8 AM)
🔴 Avoid:Rush hour (4-7 PM)
Driving vs Flying
🚗 Driving
4h 45min
~$38 gas
✈️ Flying
3h 10m
~$80–$150 flight
✈️ Flying is faster when you factor in airport time. Flight time is ~40 min but add ~2.5 hours for check-in, security, and boarding.
All Travel Options
🚗 Drive
4h 45min
~$38
🚌 Bus
7h 20m
~$26–$59
🚂 Train
6h 0m
~$40–$99
Estimated times and prices. Bus/train availability varies by route. Driving gives the most flexibility for stops and schedules.
Suggested Stops
Popular cities along the route for rest, food, or fuel:
📍 Joshua Tree
📍 Big Bear Lake
📍 Palm Springs
Frequently Asked Questions
How long does it take to drive from Las Vegas to San Diego?
The drive from Las Vegas to San Diego takes approximately 4h 45min covering 330 miles via I-15. Actual time may vary based on traffic, weather, and road conditions.
How much does gas cost for Las Vegas to San Diego?
At 30 MPG and $3.50/gallon, expect to spend approximately $38 on gas for this 330-mile trip. You'll need about 11.0 gallons of fuel.
What is the best time to drive from Las Vegas to San Diego?
Early morning (6-8 AM) to avoid heavy traffic. Weekday mornings before 7 AM or evenings after 7 PM typically have less congestion.
Are there tolls on the Las Vegas to San Diego route?
There may be minor tolls (around $9) on parts of this route. Some sections have toll-free alternatives.
