Previously seen trips
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | Bus | Castro Urdiales | Donostia | No tags | ||||
| Bus | Castro Urdiales | Donostia | No tags | ||||
| Bus | Castro Urdiales | Donostia | No tags | ||||
| Bus | Castro Urdiales | Donostia | No tags | ||||
| Bus | Castro Urdiales | Donostia | No tags |
Compare 2 ways to go from Castro Urdiales to San Sebastian
Among the sustainable travel choices, the carpool stands out as the good way to reach San Sebastian. The journey takes about 1 hour 20 minutes and with fares starting at just $8, it presents an excellent value for a comfortable ride.
| Average Price | Average Duration | CO₂ emissions | Actions | |
|---|---|---|---|---|
| Average Price$19 - $24 | Average Duration1h 45m | 3kg CO₂e | ||
Carpool | Average Price$8 - $23 | Average Duration1h 20m | 4kg CO₂e |
Where are the popular stops in Castro Urdiales and San Sebastian?
Stops in Castro Urdiales
- A
Terminal de Autobuses de Castro-Urdiales
Calle Leonardo Rucabado, 42, 39700 Castro Urdiales, Cantabria, Spain
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
Based on 60836 reviews, the company was rated 4.3 stars on Busbud. Travelers were especially satisfied with the ticket access and the staff but often complained with the wifi. ALSA ticket prices on this trip start at $19
Frequently asked questions about traveling from Castro Urdiales 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 Castro Urdiales to San Sebastian?
The cheapest bus tickets from Castro Urdiales to San Sebastian start from $19. The average price for this route is around $19. 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 Castro Urdiales to San Sebastian?
The average bus trip duration from Castro Urdiales to San Sebastian is 1h 45m, covering a distance of 63 miles (101 km). The quickest bus can get you there in 1h 45m and is operated by ALSA.
Which bus companies service the Castro Urdiales to San Sebastian route?
Several major train operators operate on this route with 1 trains available per day.
What is the earliest and latest departure time for the bus from Castro Urdiales to San Sebastian?
The earliest bus departs from Castro Urdiales to San Sebastian at 10:00am. And the latest bus departs at 7:45pm.
What are the CO₂ emissions for the bus trip from Castro Urdiales to San Sebastian?
A bus trip from Castro Urdiales to San Sebastian generates an estimated 3 kg of CO₂, making it a highly eco-friendly travel option and recommended mode of travel by Busbud.
Find cheapest prices for buses
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Castro Urdiales to San Sebastian was searched and found on Dec 2, 2025 with a price of $13To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Castro Urdiales to San Sebastian, as early as possible.
You can expect to pay from $13 to $18 for a bus ticket from Castro Urdiales to San Sebastian based on the last 2 days. You can expect to find the cheapest price for the trip at $13 which is on 2025-12-02.
