A coastal cityscape with a bay, boats, and a mountainous backdrop.

Cheap flights to Donostialdea/Donostia-San Sebastián

View €50 flight on Fri, 23 Oct 2026Opens in a new window

Popular airlines to Donostialdea/Donostia-San Sebastián

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  • Lufthansa

  • KLM

  • Air France

  • Swiss International Air Lines

  • Air Europa

  • Brussels Airlines

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Cheap round-trip flights to Donostialdea/Donostia-San Sebastián

Prices were available within the past 7 days and start at €50 for one-way flights and €111 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Iberia
Iberia
Iberia
Iberia
Vueling Airlines
Iberia
Vueling Airlines
British Airways
LOT-Polish Airlines
Aer Lingus

Trending flights to Donostialdea/Donostia-San Sebastián

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Iberia

Frequently asked questions

How do I find cheap flights to Donostialdea/Donostia-San Sebastián that have flexible change policies?
We get that travel schedules can change in the blink of an eye, so choosing a flexible ticket with Expedia is always a smart move. Simply mark the "No change fee" box directly below the "Flexible change policies" filter. Your low-cost, flexible flight to Donostialdea/Donostia-San Sebastián is just a few clicks away.
How can I find cheap tickets to Donostialdea/Donostia-San Sebastián?
In the last seven days, €111 was the lowest price for a flight to Donostialdea/Donostia-San Sebastián. For even bigger savings, book well ahead of time and be flexible with your travel dates. Search for your airfare to Donostialdea/Donostia-San Sebastián, then compare prices for similar time frames by clicking on the "flexible dates" link above.
How much is a flight to Donostialdea/Donostia-San Sebastián?
You could have nabbed a return air ticket to Donostialdea/Donostia-San Sebastián from anywhere between €111 and €450 in the last seven days. For one-way journeys departing from Porto (OPO), the lowest price during this period was just €50.
How much is a plane ticket to Donostialdea/Donostia-San Sebastián?
In the last seven days, plane tickets to Donostialdea/Donostia-San Sebastián ranged from €111 to €450.
What is the best time to go to Donostialdea/Donostia-San Sebastián?
A lovely time to visit San Sebastián is after June 20 when the summer season begins. In Donostialdea/Donostia-San Sebastián's busiest city, average temperatures fluctuate from 16ºC to 21ºC at this time — excellent weather for seeing the sights! April, May and June are the most popular months to discover this destination.
What months are the cheapest to book a flight to Donostialdea/Donostia-San Sebastián?
To bag an awesome deal to Donostialdea/Donostia-San Sebastián, try to book during the month of February when prices are at their cheapest. When's the most costly? In the U.S, it's the festive month of December.

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About Donostialdea/Donostia-San Sebastián

Expedia offers flights to Donostialdea/Donostia-San Sebastián to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Donostialdea/Donostia-San Sebastián or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About Donostialdea/Donostia-San Sebastián
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