Trains tickets from Denver to San Diego, CA, US

Easily compare and book your next trip with Busbud

Join 75M+ travellers booking 2M+ routes across 85+ countries.
Enjoy our 24/7 customer service to assist you at every stage.
Cancel anytime and receive a 100% refund, no reason needed.

Find cheapest prices for trains

Price is for a one-way ticket for one passenger and based on past searches.

Best price found
22/06
No data
23/06
US$333
Today
US$333
25/06
No data
26/06
No data
27/06
No data
28/06
No data
29/06
No data
busbud logoThe cheapest trip from Denver to San Diego was searched and found on 23 Jun 2025 with a price of US$333

To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Denver to San Diego as early as possible.

About Train Travel

Train Travel Tips

There are many train stations in the world, explore station pages on Busbud to get all information you need.

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 Denver and San Diego, you emit up to 30 times less CO2 than for the same journey made by plane or car!

Tune out to the fine sounds of your best music playlist on your train trip from Denver to San Diego while indulging in miles on end of beautiful scenic views.

Did you know?

Japanese trains are always on time. It is extremely infrequent to see breakdowns during peak periods. In the event of a delay of more than 5 minutes, the crew will personally apologise to each passenger.

You can find the straightest railway in the world in Australia. This railway line is 478 kilometres long and is also considered the longest and straightest railway line in the world.

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.

Will you be returning to Denver by train?

Train from San Diego to Denver

Why choose Busbud?

The Best Way To Book Bus and Train Tickets

Busbud.com makes it easy for you to find, compare and book city-to-city bus tickets, all over the world. We save you the extra trip to the bus station. With Busbud, wherever you go, you have a worldwide bus station within reach and available in your own language and currency. Busbud partners with safe and reliable bus companies throughout the world such as Greyhound, Eurolines, ALSA, OUIBUS (BlaBlaBus), National Express and many others so you can buy tickets without a worry.

People from around the world trust Busbud

‌

Popular Trains Connecting Denver

Trains Leaving from Denver

Popular Trains Connecting San Diego

Trains Going to San Diego