Compare 2 ways to go from Regensburg to Karlsruhe.
Busbud recommends taking the bus from Regensburg to KarlsruheAmong the sustainable travel choices, the bus stands out as the good way to reach Karlsruhe. The journey takes about 7 hours 35 minutes and with fares starting at just $45, it presents an excellent value for a comfortable ride.
Train Regensburg to Karlsruhe: Trip Overview
Please note, this information is subject to change.
Train Companies
Based on 8 reviews, the company was rated 4.6 stars on Busbud. Travelers were especially satisfied with the timeliness and the seats but often complained with the ticket access. Deutsche Bahn ICE ticket prices on this trip start at $83
Regensburg to Karlsruhe Train
With Busbud, comparing and booking tickets for a train from Regensburg to Karlsruhe is a breeze. Browse through an extensive selection of train fares and train schedules to find the best deals.
Train service from Regensburg to Karlsruhe will be provided by the most trusted companies.
From train tickets to high-end trains trip from Regensburg to Karlsruhe, we offer a wide range of train services to best suit your needs depending on how much your budget is.
Where are the popular train stations and stops in Regensburg and Karlsruhe?
Frequently asked questions for your trip Regensburg - Karlsruhe
Find cheapest prices for trains
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Regensburg to Karlsruhe was searched and found on Aug 10, 2025 with a price of $79To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Regensburg to Karlsruhe, as early as possible.
You can expect to pay from $79 to $153 for a train ticket from Regensburg to Karlsruhe based on the last 2 days. You can expect to find the cheapest price for the trip at $79 which is on 2025-08-10.
About Train Travel
Train Travel Tips
Taking the fastest trains allows you to travel at speeds greater than 300 km/h. Taking a trip from Regensburg to Karlsruhe is not only much quicker but more comfortable too! You can usually travel directly to the city centre and save time while you're at it.
No matter if you plan to take a regional or high-speed train to Karlsruhe, 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 Regensburg and Karlsruhe 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.
Create your own real life musical score by curating a personalized train travel playlist - the perfect accompaniment to your bus ride from Regensburg to Karlsruhe.
Did you know?
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.
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 apologize to each passenger.
Top Traveled Train Routes
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Popular Trains Connecting Regensburg
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Popular Trains Connecting Karlsruhe
Trains Going to Karlsruhe
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