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How to get from Los Angeles to San Diego
The most relaxing way from Los Angeles to San Diego is Amtrak's Pacific Surfliner from Union Station to San Diego Santa Fe Depot, about 2 h 45 to 3 h along the coast. Driving on I-5 takes about 2 h without traffic but often 3 h or more, and buses take about 2 h 30 to 3 h.
Best option: Train. The Pacific Surfliner avoids I-5 traffic, runs along the coast and arrives in downtown San Diego near the waterfront.
All the ways to make the trip
| How | Time | How often | Price* | Good to know |
|---|---|---|---|---|
| train Amtrak Pacific Surfliner from Los Angeles Union Station to San Diego Santa Fe Depot | about 2 h 45 to 3 h | around 10 trains a day; check the current timetable | about US$30–50 | Part of the route runs right along the ocean north of San Diego; sit on the right heading south. |
| car I-5 south | about 2 h without traffic; 3 h or more at peak times | fuel; no tolls on I-5 | Avoid weekday rush hours and Friday afternoons. Toll lanes exist on some alternative routes. | |
| bus Long-distance coaches (FlixBus, Greyhound) from Los Angeles to San Diego | about 2 h 30 to 3 h | several a day | about US$15–30 | Cheapest option, but subject to the same traffic as cars. |
*Approximate prices and times for 2026. Timetables change by season: check with the operator before you travel.
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Tips
- Santa Fe Depot is a short walk from the Gaslamp Quarter and the harbour.
- Consider stopping at San Juan Capistrano or Oceanside, both on the Surfliner route.
- Check Amtrak service alerts; coastal track work sometimes replaces trains with buses.
- If driving, leave LA before 6:30 or after 9:30 on weekdays.
Common questions
Is there a direct train from Los Angeles to San Diego?
Yes. Amtrak's Pacific Surfliner runs directly from Los Angeles Union Station to San Diego Santa Fe Depot in about 2 h 45 to 3 h, with around ten trains a day. Coastal track work occasionally interrupts service, so check Amtrak alerts before travelling.
Can I do San Diego as a day trip from LA?
Yes, if you start early. The train takes about three hours each way, so a 7:00 departure gives you most of the day for Balboa Park, the Gaslamp Quarter or the harbour before an evening train back. Driving can be faster but traffic is unpredictable.
What is the cheapest way from Los Angeles to San Diego?
A long-distance bus, at about US$15–30 one way when booked ahead. The Pacific Surfliner costs a little more, about US$30–50, but is more comfortable and avoids traffic. Driving costs fuel plus parking in downtown San Diego, which can be expensive.
Do I need to book ahead?
Not usually for the Pacific Surfliner, where unreserved coach tickets are often available on the day, but some peak trains fill up and booking ahead can be cheaper. Buses use dynamic prices, so booking early saves money. Holiday weekends are busiest.
Compiled by TonyPlan from operator and transport information and travel knowledge; updated 2026-10-05. Anything we could not confirm is marked as approximate.