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

Cheap Flights to Donostialdea/Donostia-San Sebastián from ₩1,356,700

View ₩1,356,700 flight on Sat, Jul 4, 2026Opens in a new window

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  • Air Europa

  • TAP Portugal

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How much is the cheapest flight to Donostialdea/Donostia-San Sebastián?

Prices were available within the past 7 days and start at ₩1,356,700 for one-way flights and ₩1,441,600 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sat, Jul 4 - Tue, Jul 7
BHD
Belfast
EAS
San Sebastián
₩1,441,600 Roundtrip, found 1 day ago
₩1,441,600
Roundtrip
found 1 day ago
Select British Airways flight, departing Sat, Jul 4 from Belfast to San Sebastián, returning Tue, Jul 7, priced at ₩1,441,600 found 1 day ago
British Airways
Sat, Jul 4 - Tue, Jul 7
BHD
Belfast
EAS
San Sebastián
₩1,454,800 Roundtrip, found 1 day ago
₩1,454,800
Roundtrip
found 1 day ago
Select British Airways flight, departing Sat, Jul 4 from Belfast to San Sebastián, returning Tue, Jul 7, priced at ₩1,454,800 found 1 day ago
British Airways
Sat, Jul 4 - Tue, Jul 7
BHD
Belfast
EAS
San Sebastián
₩1,490,300 Roundtrip, found 1 day ago
₩1,490,300
Roundtrip
found 1 day ago
Select British Airways flight, departing Sat, Jul 4 from Belfast to San Sebastián, returning Tue, Jul 7, priced at ₩1,490,300 found 1 day ago
British Airways
Sat, Jul 4 - Tue, Jul 7
BHD
Belfast
EAS
San Sebastián
₩1,492,900 Roundtrip, found 2 days ago
₩1,492,900
Roundtrip
found 2 days ago
Select British Airways flight, departing Sat, Jul 4 from Belfast to San Sebastián, returning Tue, Jul 7, priced at ₩1,492,900 found 2 days ago
British Airways
Sat, Jul 4 - Tue, Jul 7
BHD
Belfast
EAS
San Sebastián
₩1,496,500 Roundtrip, found 1 day ago
₩1,496,500
Roundtrip
found 1 day ago
Select British Airways flight, departing Sat, Jul 4 from Belfast to San Sebastián, returning Tue, Jul 7, priced at ₩1,496,500 found 1 day ago
British Airways
Sat, Jul 4 - Tue, Jul 7
BHD
Belfast
EAS
San Sebastián
₩1,500,100 Roundtrip, found 1 day ago
₩1,500,100
Roundtrip
found 1 day ago
Select British Airways flight, departing Sat, Jul 4 from Belfast to San Sebastián, returning Tue, Jul 7, priced at ₩1,500,100 found 1 day ago
British Airways
Sat, Jul 4 - Tue, Jul 7
BHD
Belfast
EAS
San Sebastián
₩1,506,000 Roundtrip, found 2 days ago
₩1,506,000
Roundtrip
found 2 days ago
Select British Airways flight, departing Sat, Jul 4 from Belfast to San Sebastián, returning Tue, Jul 7, priced at ₩1,506,000 found 2 days ago
British Airways
Sat, Jul 4 - Tue, Jul 7
BHD
Belfast
EAS
San Sebastián
₩1,509,600 Roundtrip, found 2 days ago
₩1,509,600
Roundtrip
found 2 days ago
Select British Airways flight, departing Sat, Jul 4 from Belfast to San Sebastián, returning Tue, Jul 7, priced at ₩1,509,600 found 2 days ago
British Airways
Sat, Jul 4 - Tue, Jul 7
BHD
Belfast
EAS
San Sebastián
₩1,509,700 Roundtrip, found 1 day ago
₩1,509,700
Roundtrip
found 1 day ago
Select British Airways flight, departing Sat, Jul 4 from Belfast to San Sebastián, returning Tue, Jul 7, priced at ₩1,509,700 found 1 day ago
British Airways
Sat, Jul 4 - Tue, Jul 7
BHD
Belfast
EAS
San Sebastián
₩1,513,300 Roundtrip, found 1 day ago
₩1,513,300
Roundtrip
found 1 day ago
Select British Airways flight, departing Sat, Jul 4 from Belfast to San Sebastián, returning Tue, Jul 7, priced at ₩1,513,300 found 1 day ago
British Airways
Sat, Jul 4 - Tue, Jul 7
BHD
Belfast
EAS
San Sebastián
₩1,545,200 Roundtrip, found 1 day ago
₩1,545,200
Roundtrip
found 1 day ago
Select British Airways flight, departing Sat, Jul 4 from Belfast to San Sebastián, returning Tue, Jul 7, priced at ₩1,545,200 found 1 day ago
British Airways
Sat, Jul 4 - Tue, Jul 7
BHD
Belfast
EAS
San Sebastián
₩1,548,800 Roundtrip, found 1 day ago
₩1,548,800
Roundtrip
found 1 day ago
Select British Airways flight, departing Sat, Jul 4 from Belfast to San Sebastián, returning Tue, Jul 7, priced at ₩1,548,800 found 1 day ago
British Airways
Sat, Jul 4 - Tue, Jul 7
BHD
Belfast
EAS
San Sebastián
₩1,618,500 Roundtrip, found 1 day ago
₩1,618,500
Roundtrip
found 1 day ago
Select British Airways flight, departing Sat, Jul 4 from Belfast to San Sebastián, returning Tue, Jul 7, priced at ₩1,618,500 found 1 day ago
American Airlines
Sun, Jul 19 - Wed, Jul 22
BOI
Boise
EAS
San Sebastián
₩2,994,500 Roundtrip, found 20 hours ago
₩2,994,500
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Sun, Jul 19 from Boise to San Sebastián, returning Wed, Jul 22, priced at ₩2,994,500 found 20 hours ago
Iberia
Sun, Jul 19 - Wed, Jul 22
BOI
Boise
EAS
San Sebastián
₩3,008,700 Roundtrip, found 20 hours ago
₩3,008,700
Roundtrip
found 20 hours ago
Select Iberia flight, departing Sun, Jul 19 from Boise to San Sebastián, returning Wed, Jul 22, priced at ₩3,008,700 found 20 hours ago

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, ₩1,441,600 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 ₩1,441,600 and ₩3,008,700 in the last seven days. For one-way journeys departing from Belfast (BHD), the lowest price during this period was just ₩1,356,700.
When is the cheapest time to fly to Donostialdea/Donostia-San Sebastián?
If you're not fixed on what date you travel to Donostialdea/Donostia-San Sebastián, fly out early on in the week. The most economical day to take off is normally Tuesday, closely followed by Monday. Saturday is typically the priciest day, with many people preferring to take off on the weekend.
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 ₩1,441,600 to ₩3,008,700.
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 60ºF to 70ºF 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.

Book with confidence

About Donostialdea/Donostia-San Sebastián

Expedia offers flights to Donostialdea/Donostia-San Sebastián to meet every traveler'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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