- Must visit
Aquarium
Major aquarium with a maritime museum section, historic displays and a walk-through tunnel. A strong all-weather visit near the harbour.
Omio recommends booking the coach as it is the most popular option from Porto to Donostia-San Sebastian among Omio's users. If you are prioritising price take the coach with prices starting from £18. For those with little time consider booking a flight which can get you there in 2h 31m. In case you are seeking to minimise your carbon footprint the coach is your best bet as it emits only 0.6 - 1.5kg. The ticket price range depends on the travel mode: a coach costs an average of £18, and a flight costs an average of £67.
Distance: 597 km
| Train | Most popular Coach | Flight |
|---|---|---|
£83 Average Price | £33 Average Price Cheapest | £220 Average Price |
28h 27m Average total duration 27h 57m Onboard + 30m Additional time* | 12h 5m Average total duration 11h 35m Onboard + 30m Additional time* | 5h 31m Average total duration Fastest 2h 31m Onboard + 3h 0m Additional time* |
- CO2 emissions | 0.6 - 1.5kg CO2 emissions Lowest | 1.8 - 3.6kg CO2 emissions |
Direct Options | Direct Options | Direct Options |
Additional time: Average total travel duration to departure point, security checks and transfers.
Compare train, coach and flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
Trains from Porto to Donostia-San Sebastian run on average 1 times per day, taking around 27h 57m. Cheap train tickets for this journey start at £70 but you can travel from only £18 by coach.
The earliest train runs at 01:20, the last at 22:25. The fastest train covers the 597 km distance in 24h 36m.
Distance 597 km |
Average train duration 27h 57m |
Cheapest ticket price £70 |
Trains per day 1 |
Fastest train 24h 36m |
First train 1:20 |
Last train 22:25 |
High Season Jul - Sept |
Low Season Jan - Mar |
Busiest Day Sat |
Least Busy Day Mon |
Best time to book 14 days |
Discover the best of Donostia-San Sebastian — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Donostia-San Sebastian trip today.
Major aquarium with a maritime museum section, historic displays and a walk-through tunnel. A strong all-weather visit near the harbour.
Museum dedicated to sculptor Eduardo Chillida, set in a large garden with monumental works. Combines art, landscape and a quieter side of the area.
Contemporary art centre focused on Basque and international work. It is worth visiting for exhibitions, architecture and a calmer cultural stop in the city.
Iconic city beach and promenade framed by Belle Époque buildings. It is the classic place for walks, sea views and experiencing San Sebastián’s atmosphere.
Historic quarter with narrow streets, churches and lively public spaces. Go for architecture, atmosphere and easy access to several major sights.
Hilltop viewpoint reached by funicular or on foot, with a small amusement area and sweeping views over the bay and city. Ideal for first-time visitors.
Battered cod fried with green peppers and onion. A classic Basque pintxo tied to local salt cod cooking traditions.
Whole spider crab dressed with its own juices, egg and breadcrumbs. A prized festive shellfish dish on the Basque coast.
Basque-style cheesecake from San Sebastián, baked until deeply caramelised outside with a creamy centre. Now iconic city-wide.
Elegant dining room known for creative Basque cooking with strong local produce and polished service.
Historic old-town spot celebrated for Basque cheesecake and classic dishes in a bustling tavern setting.
Busy traditional pintxos bar famed for mushroom pintxos and a lively old-town atmosphere.
Moderate for Spain: pintxos and coffee are reasonable, but central hotels and popular dining can cost more than in many comparable Spanish cities.
Service is usually included. Round up or leave 5-10% in restaurants for very good service; small change in cafés; taxi tips are optional, often just rounding up.
Official public transport app
San Sebastián Airport -> Donostia Geltokia, Donostia-San Sebastián
Find answers to the most common questions about traveling from Porto to Donostia-San Sebastian by train. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest train, the cheapest option, or tips for making the most of your visit at Donostia-San Sebastian, this guide helps you travel smarter and with confidence.

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