Frequently asked questions for your trip Chicago - San Diego, CA, US
Find cheapest prices for trains
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Chicago to San Diego, CA, US was searched and found on Oct 6, 2025 with a price of $178To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Chicago to San Diego, CA, US, as early as possible.
You can expect to pay from $178 to $3,902 for a train ticket from Chicago to San Diego, CA, US based on the last 2 days. You can expect to find the cheapest price for the trip at $178 which is on 2025-10-06.
About Train Travel
Train Travel Tips
There are many train stations in the world, check it station pages on Busbud to get all information you need.
No matter if you plan to take a regional or high-speed train to San Diego, the planet will thank you. You’ll help to protect the beautiful landscapes that will unfold before your very eyes.
The train emits up to 30x less CO2 for a trip between Chicago and San Diego compared to the same trip made by plane or car. A truly ecological mode of transport that will allow you to easily reduce your carbon footprint.
Make a music playlist for your train ride from Chicago to San Diego, and enjoy the scenery to tunes from your own personal soundtrack.
Did you know?
The magnetic levitation train (Maglev for short) is currently the fastest train in the world. With a speed of 603 km/ h, it is closely followed by the French high-speed train (574.8 km / h) which remains in 2020, the fastest train to date
The first high-speed train line was inaugurated in 1964, in Japan, to connect Tokyo with Osaka. It was during the Olympics that the first passengers traveled aboard the Shinkansen at a speed of 210 km / h.
One of the deepest train stations in the world is in Kiev. Located at a depth of 105 m, it was designed in this way to serve as a shelter in the event of an attack. The second deepest station is in China. Badaling station is located 60 m under the Great Wall of China!
Top Traveled Train Routes
Why choose Busbud?
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Busbud helps you easily search, compare and book intercity bus tickets on a worldwide scale with our comprehensive list of bus routes and schedules. With Busbud, wherever you go, you have a worldwide bus station within reach and available in your own language and currency. Busbud prides itself on its worldwide partnerships. We make it possible for you to buy tickets with its large network of trustworthy bus partners like Greyhound, Eurolines, ALSA, OUIBUS (BlaBlaBus), National Express and many others.
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