Next departures
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | San Marcos Station | Old Town San Diego | CheapestFastest | |||||
| San Marcos Station | Old Town San Diego | No tags | |||||
| San Marcos Station | Santa Fe Depot | No tags | |||||
| San Marcos Station | Santa Fe Depot | No tags |
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Compare 2 ways to travel from San Marcos to San Diego
We recommend taking the trainAmong the sustainable travel choices, the train stands out as a good way to reach San Diego. The journey takes about 1 day, 16 hours 17 minutes and with fares starting at just US$231, it presents an excellent value for a comfortable ride.
Train San Marcos, TX, US to San Diego, CA, US: Trip Overview
Please note, this information is subject to change.
Train Companies
Based on 5555 reviews, the company was rated 4.1 stars on Busbud. Travellers were especially satisfied with the seats and the ticket access but often complained with the Wi-Fi. Amtrak ticket prices on this trip start at US$231
San Marcos to San Diego Train
Busbud shows you the best train ticket fares and train schedules so you can plan and book a trip by train easily from San Marcos to San Diego.
We make it our job to connect you with the most dependable companies that offer train services from San Marcos to San Diego.
Whether it is train tickets or first class train tickets going to San Diego from San Marcos, we help you find what you're looking for based on how much of a budget you have.
Frequently asked questions on the trip San Marcos, TX, US - San Diego, CA, US
How much does a cheap train ticket from San Marcos to San Diego cost?
The average train ticket price from San Marcos to San Diego is US$270. The best way to find cheap train tickets from San Marcos to San Diego is to book your tickets as early as possible. Prices tend to rise as your travel date approaches, so book in advance to secure the best prices!
How long is the train trip from San Marcos to San Diego?
A train trip between San Marcos and San Diego is around 1d 16h, although the fastest train will take about 1d 16h. This is the time it takes to travel the 1850 km that separates the two cities.
How many daily train are there between San Marcos and San Diego?
The number of trains from San Marcos to San Diego can differ depending on the day of the week. On average, there are 2. Some trains are direct while others include transferring trains. Simplify your train trip from San Marcos to San Diego by comparing and selecting the train that fits your travel style and budget on Busbud.
Which train companies travel from San Marcos to San Diego?
When taking the train from San Marcos to San Diego, you can travel comfortably and safely with Amtrak.
Find cheapest prices for trains
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from San Marcos, TX, US to San Diego, CA, US was searched and found on 01 Nov 2025 with a price of US$222To save money and be sure you have the best seat, it's a good idea to buy your train tickets from San Marcos, TX, US to San Diego, CA, US as early as possible.
You can expect to pay from US$222 to US$242 for a train ticket from San Marcos, TX, US to San Diego, CA, US based on the last 2 days. You can expect to find the cheapest price for the trip at US$222, which is on 2025-11-01.
About Train Travel
Train Travel Tips
Do you like to go fast? With high-speed trains going faster than 300 km/h on certain routes, the time will fly by. Taking a train between San Marcos and San Diego is also a great way to travel to arrive in the city centre and save more time for your stay in San Diego.
Whether you take a regional or high-speed train to San Diego, you’ll help reduce the environmental impact and carbon footprint of your trip. As you watch the landscapes unfold before your eyes, you can tell yourself that with this choice, you are making sure they remain protected.
By choosing the train between San Marcos and San Diego, you emit up to 30 times less CO2 than for the same journey made by plane or car!
Make a music playlist for your train ride from San Marcos to San Diego and enjoy the scenery to tunes from your own personal soundtrack.
Did you know?
Some trains in Sweden can recover more than a fifth of the energy they use by braking. This is especially true with ore trains as they descend from Narvik to Kiruna.
New York holds the record for the most platforms and track numbers in a single station. Grand Central Station in Manhattan is one of the largest rail terminals in the world with more than 44 platforms and 67 tracks to accommodate passengers.
Railway companies played a major role as early as 1883 in the use of time zones as we know them today.
What's the cheapest way to go from San Marcos, TX, US to San Diego, CA, US?
The train is the cheapest travel choice for this destinationThe best way to travel between San Marcos, TX, US and San Diego, CA, US is by train. By choosing the train, you'll get to save some money as you travel to your destination, as ticket prices cost US$270 on average. If you're on a budget, you'll find cheap tickets from US$231. If you're looking for the fastest way to get to San Diego, CA, US, choose the train, as it will take you from San Marcos, TX, US to San Diego, CA, US in about 1d 16h – that's the fastest way to get there!
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