Cheap flights from San Sebastian to Madrid from £73

The month of February is, on average, the cheapest month to fly to Madrid from San Sebastian, with most prices found around £82. The month of August is another great option to travel to Madrid, with average flight prices from San Sebastian averaging around £84.

Fly from San Sebastián to Madrid Barajas for the best San Sebastián - Madrid Barajas flight prices

You are more likely to see cheaper flights to Madrid from San Sebastian when booking weeks ahead of your departure date. In general, you can expect to find flights to Madrid for around £98 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Madrid from San Sebastian for as low as £70 on momondo.

There are 3 cabin classes available to choose from on San Sebastian to Madrid flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 2% of flights between San Sebastian and Madrid have experienced a delay on any given week. The average delay length over the past 12 months has been 110 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Iberia have had the fewest delays on this route over the last 12 months, with about 2% of their flights experiencing any sort of delay.

As of September 2026, there are 21 flights per day flying from San Sebastian to Madrid. The most common time of day flights depart is 09:00, with 42% of flights taking off at midday.

151 flights are operational weekly from San Sebastian to Madrid as of September 2026. The most popular departure day for this route is Thu, with 17% of flights per week taking off on this day.