via I-15
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 is usually worst during weekday rush hours (7–9 AM, 4–7 PM) and holiday weekends.
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.
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.
✈️ 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.
Estimated times and prices. Bus/train availability varies by route. Driving gives the most flexibility for stops and schedules.
Popular cities along the route for rest, food, or fuel:
The journey from Las Vegas to San Diego stretches 330 miles along I-15 and typically takes 4h 45min to complete. At today's fuel prices, expect to spend around $38 on gas. Departing during early morning (6-8 am) gives you the best chance of avoiding congestion along the way.
The 330-mile distance makes this a proper road trip. Start with a full tank, grab a coffee for the road, and enjoy the changing scenery as you make your way from Las Vegas to San Diego. Popular stopping points include Joshua Tree, Big Bear Lake, Palm Springs — great options for grabbing a meal, fueling up, or stretching your legs.