Cheap flights from San Sebastian to Madrid from $31

The month of August is, on average, the cheapest month to fly to Madrid from San Sebastian, with most prices found around $97. If you don’t want to visit Madrid in August, then you should wait until February to fly from San Sebastian, when ticket prices are also cheap, with an average price of $108.

The cheapest day to depart on your flight to Madrid is on a Saturday when prices can be found for as low as $123. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Madrid on Friday is $1,278.

Flying to Madrid from San Sebastian in the evening is the least expensive time of day to depart. momondo users have found prices as low as $262 when looking at flights departing in the evening. Flights to Madrid are more costly in the morning, with an average ticket price of $895. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 $133 when searching weeks out. 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 $90 on momondo.

There are 3 cabin classes available to choose from on San Sebastián to Madrid Barajas 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 91 minutes.

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

Tuesday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 2% of their flights experiencing any sort of delay.

The number of flights available between San Sebastian and Madrid is 10 per day as of March 2026. The most frequent departure time is 9:00AM, with 39% of daily flights leaving at noon.

71 flights are operational weekly from San Sebastian to Madrid as of March 2026. The most popular departure day for this route is Fri, with 32% of flights per week taking off on this day.