Cheap flights from Barcelona to Buenos Aires from £329

In general, February is the cheapest month to fly from Barcelona to Buenos Aires. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £839. If you don’t want to visit Buenos Aires in February, then you should wait until November to fly from Barcelona, when ticket prices are also cheap, with an average price of £852.

The cheapest day to depart on your flight to Buenos Aires is on a Thursday when prices can be found for as low as £767. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from Barcelona because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,169.

Our most recent data shows that the best time of day to fly to Buenos Aires is in the evening. Flights from Barcelona to Buenos Aires during this time can be as low as £1,018. Flights to Buenos Aires are more costly in the morning, with an average ticket price of £1,035. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Barcelona-El Prat to Buenos Aires Ministro Pistarini for the best Barcelona - Buenos Aires flight prices

You are more likely to see cheaper flights to Buenos Aires from Barcelona when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around £992 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from Barcelona for as low as £922 on momondo.

Historically, on average around 16% of flights between Barcelona and Buenos Aires have experienced a delay on any given week. The average delay length over the past 12 months has been 321 minutes.

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

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

According to our data, LEVEL have had the fewest delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

As of April 2026, 2 flights take off from Barcelona and land in Buenos Aires each day. The most common flight departure time for this route is 00:00, with 67% of daily flights taking off in the morning.

14 flights are operational weekly from Barcelona to Buenos Aires as of April 2026. The most popular departure day for this route is Mon, with 21% of flights per week taking off on this day.