Los Angeles to San Diego Distance
The distance from Los Angeles to San Diego is about 120 miles
(193 km) by road, and the drive takes approximately
2 hours without traffic, mostly along Interstate 5.
The straight-line distance between the two cities is 111 miles
(179 km). Use the calculator above to check the exact distance
between any specific address or landmark in LA and San Diego.
Driving Distance
~120 miles (193 km) via Interstate 5, the fastest and most direct route.
Drive Time
~2 hours with no traffic. Southern California traffic can easily push this to 3–4 hours.
Straight-Line Distance
~111 miles (179 km) as the crow flies — about 8% shorter than the driving route.
Time Zone
Los Angeles and San Diego are both in the Pacific Time Zone, so there is no time difference.
How to Calculate the Distance Between LA and San Diego
The 120-mile figure above is measured city center to city center. If you're starting from a specific neighborhood, airport, or beach town, the exact distance will vary slightly:
Type Los Angeles, Long Beach, or a specific address in the "From" field.
Type San Diego, or a specific spot like La Jolla, in the "To" field.
See the exact driving distance, straight-line distance, and map for your route.
Coastal I-5 vs. Inland Route: Which to Take?
There are two main driving options between LA and San Diego — a fast inland freeway or a slower, scenic coastal route:
Interstate 5 (Fastest)
- ~120 miles (193 km)
- ~2 hours with no traffic
- Direct freeway route, best for time-sensitive trips
Highway 1 / Pacific Coast Route
- ~124 miles (200 km) via the coast
- 3–6 hours with sightseeing stops
- Passes Huntington Beach, Newport Beach, and Laguna Beach
Frequently Asked Questions
How far is San Diego from LA?
San Diego is about 120 miles (193 km) from Los Angeles by road, a drive of roughly 2 hours with no traffic. The straight-line distance is about 111 miles (179 km).
How long does it take to drive from LA to San Diego?
Under ideal conditions, the drive takes about 2 hours. Because of frequent Southern California traffic, especially during rush hour or weekends, it commonly takes 3 to 4 hours.
Is there a time difference between LA and San Diego?
No. Both cities are in the Pacific Time Zone, so clocks are the same in both locations year-round.
What's the best route from LA to San Diego?
Interstate 5 is the fastest route at about 2 hours. If you have extra time, the coastal route through Orange County offers ocean views but takes considerably longer.
Can you take a train from LA to San Diego?
Yes, Amtrak's Pacific Surfliner runs between Los Angeles Union Station and San Diego, typically taking about 2 hours 45 minutes, slightly longer than driving but without traffic stress.
Planning Your LA to San Diego Trip
Day Trip Planning
At just 2 hours by freeway, San Diego is a popular day trip or weekend getaway from Los Angeles.
Traffic Timing
Leave early morning or after evening rush hour to avoid the heaviest I-5 and I-405 congestion near LA and Orange County.
Train vs. Car
Compare Amtrak's Pacific Surfliner against driving to decide which fits your schedule and budget best.
Shipping & Commuting
Businesses and commuters use this distance to estimate delivery windows and travel time between Southern California's two largest cities.
Other Popular US City Distances
Planning a bigger Southwest road trip? Check the Grand Canyon to Las Vegas distance guide for another classic California-adjacent route.