Madrid → San Sebastian flights
Last observed price · Last checked: 3 Sep 2026 · Price may change
Short answer
The lowest fare our own searches returned is €42, seen on 3 Sep 2026. The average across the fares we caught is €52. October 2026 is the cheapest month in our observations, at €42. These are prices our searches returned on the dates shown, not quotes; run a live search for today's fare.
Fly via a nearby hub
- via Bilbao:✈ Madrid – Bilbao🚌 Bilbao – San Sebastian
Tickets found in the last 7 days
The lowest fares our queries caught, cheapest first.
Starting prices by month
The lowest fare our queries observed in each month. Open a month to see its days; click a day with no price and we will search it for you.
Round trip
Route facts
Frequently asked
How much is a flight from Madrid to San Sebastian?+−
The lowest fare we have observed is €42, found on 3 Sep 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Madrid to San Sebastian?+−
In our observations October 2026 is the cheapest month so far, at €42.
We will email you when this route drops below €38.
Similar routes
More routes from Madrid
More routes to San Sebastian
Last checked: 3 Sep 2026