Next bus departures
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | Bus | Karlsruhe | Donostia | CheapestFastest |
Last refresh of the prices: Today at 12:25 AM CET.
Compare 2 ways to go from Karlsruhe to San Sebastian
Among the sustainable travel choices, the bus stands out as the good way to reach San Sebastian. The journey takes about 21 hours 30 minutes and with fares starting at just $79, it presents an excellent value for a comfortable ride.
| Average Price | Average Duration | CO₂ emissions | Actions | |
|---|---|---|---|---|
| Average Price$79 - $79 | Average Duration21h 30m | 25kg CO₂e | ||
Carpool | Average Price$62 - $62 | Average Duration13h 10m | 43kg CO₂e |
Where are the popular stops in Karlsruhe and San Sebastian?
Stops in Karlsruhe
- AHinterm Hauptbahnhof 6, 76137 Karlsruhe, Germany
- BBahnhofpl. 1A, 76137 Karlsruhe, Germany
- CGoethestraße 17-19, 76135 Karlsruhe, Germany
- D
Karlsruhe
Gartenstraße 58, 76135 Karlsruhe, Germany - E
Karlsruhe/Baden-Baden Airport
Quebec Avenue, 77836 Rheinmünster, Germany
Stops in San Sebastian
- AFederico García Lorca Pasealekua, 2, 20014 Donostia, Gipuzkoa, Spain
- B
Pío XII
Pio XII.aren Plaza, 3, 20010 Donostia, Gipuzkoa, Spain - C
Universidad
Tolosa Hiribidea, 71, 20018 Donostia, Gipuzkoa, Spain
Compare bus companies
Frequently asked questions about traveling from Karlsruhe to San Sebastian by bus
Please note that schedules, routes, or operator details shown here may be updated or vary at the time of your trip.
How much is the bus ticket from Karlsruhe to San Sebastian?
The cheapest bus tickets from Karlsruhe to San Sebastian start from $79. The average price for this route is around $79. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.
How long is the bus ride from Karlsruhe to San Sebastian?
The average bus trip duration from Karlsruhe to San Sebastian is 21h 30m, covering a distance of 631 miles (1017 km). The quickest bus can get you there in 19h 35m and is operated by FlixBus.
Which bus companies service the Karlsruhe to San Sebastian route?
Several major bus companies operate on this route with 1 buses available per day, including services from BlaBlaCar Bus, FlixBus.
What is the earliest and latest departure time for the bus from Karlsruhe to San Sebastian?
The earliest bus departs from Karlsruhe to San Sebastian at 11:50am. And the latest bus departs at 11:50am.
What are the CO₂ emissions for the bus trip from Karlsruhe to San Sebastian?
A bus trip from Karlsruhe to San Sebastian generates an estimated 25 kg of CO₂, making it a highly eco-friendly travel option and recommended mode of travel by Busbud.
What is the best bus company from Karlsruhe to San Sebastian?
According to Busbud customers, the highest-rated bus company on this route is BlaBlaCar Bus, with an average rating of 3.7 out of 5 stars based on 11197 reviews.
Which bus company has the best Wi-Fi from Karlsruhe to San Sebastian?
Based on reviews on Busbud, the bus company FlixBus has the best Wi-Fi rating with a score of 2.7.
Which bus company has the most timely service from Karlsruhe to San Sebastian?
According to Busbud traveller reviews, the most timely bus company on this route is FlixBus, with a punctuality rating of 3.9 out of 5 stars.
Which bus company has the cleanest buses from Karlsruhe to San Sebastian?
According to Busbud traveller reviews, the bus company with the cleanest buses on this route is BlaBlaCar Bus, with a cleanliness rating of 4.3 out of 5 stars.
Find cheapest prices for buses
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Karlsruhe to San Sebastian was searched and found on Dec 21, 2025 with a price of $229To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Karlsruhe to San Sebastian, as early as possible.
You can expect to pay from $229 to $229 for a bus ticket from Karlsruhe to San Sebastian based on the last 2 days. You can expect to find the cheapest price for the trip at $229 which is on 2025-12-21.
