Cheap flights from San Sebastian to Barcelona from $47

The cheapest month to fly to Barcelona-El Prat Airport from San Sebastian is in January. Flight prices, which tend to average around $99, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Barcelona-El Prat Airport from San Sebastian during March instead. Flights to Barcelona-El Prat Airport in March, while not as cheap as those in January, still average around $115.

The cheapest day to depart on your flight to Barcelona-El Prat Airport is on a Wednesday when prices can be found for as low as $152. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $760. These prices are subject to change though, so be sure to set up a Price Alert for flights to Barcelona-El Prat Airport.

Flying to Barcelona-El Prat Airport from San Sebastian at noon is the least expensive time of day to depart. momondo users have found prices as low as $226 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $274 on average. Flights to Barcelona-El Prat Airport from San Sebastian in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from San Sebastián to Barcelona-El Prat for the best San Sebastián - Barcelona-El Prat flight prices

You are more likely to see cheaper flights to Barcelona-El Prat Airport from San Sebastian when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona-El Prat Airport for around $154 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona-El Prat Airport from San Sebastian for as low as $89 on momondo.

There are 3 cabin classes available to choose from on San Sebastián to Barcelona-El Prat 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 8% of flights between San Sebastian and Barcelona have experienced a delay on any given week. The average delay length over the past 12 months has been 95 minutes.

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

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Vueling have had the least number of delays on this route over the last 12 months; with about 8% of their flights experiencing any sort of delay.

As of March 2026, there are 3 flights per day flying from San Sebastian to Barcelona-El Prat Airport. The most common time of day flights depart is 2:00PM, with 100% of flights taking off in the afternoon.

As of March 2026, there are 21 flights per week flying from San Sebastian to Barcelona-El Prat Airport. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.