Cheap flights from Madrid to Buenos Aires from £419

In general, May is the cheapest month to fly from Madrid to Buenos Aires. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £785. If you don’t want to visit Buenos Aires in May, then you should wait until April to fly from Madrid, when ticket prices are also cheap, with an average price of £820.

The cheapest day to depart on your flight to Buenos Aires is on a Saturday when prices can be found for as low as £821. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Madrid because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,127.

Our most recent data shows that the best time of day to fly to Buenos Aires is in the evening. Flights from Madrid to Buenos Aires during this time can be as low as £837. Flights to Buenos Aires are more costly in the morning, with an average ticket price of £982. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Madrid Barajas to Buenos Aires Ministro Pistarini for the best Madrid Barajas - Buenos Aires flight prices

You are more likely to see cheaper flights to Buenos Aires from Madrid when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around £896 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 Madrid for as low as £852 on momondo.

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

You could potentially save up to 32% on your flight if you consider stops on a Madrid to Buenos Aires flight.

As of August 2026, prices for Madrid to Buenos Aires flights are approximately 5% cheaper when compared to flights at the same time last year.

United Airlines, Plus Ultra, and TAP AIR PORTUGAL are the most popular carriers operating from Madrid Barajas to Buenos Aires

Iberia, Plus Ultra and Aerolineas Argentinas are the top three most popular airlines that fly to Buenos Aires from Madrid according to our data. Iberia is the first choice among our users, with 35% of people opting to fly with this airline when travelling to Buenos Aires. Keep in mind that there are 3 different airlines that fly to Buenos Aires on a routine basis, so you have a few additional options to choose from.

Historically, on average around 21% of flights between Madrid and Buenos Aires have experienced a delay on any given week. The average delay length over the past 12 months has been 164 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the early afternoon 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. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, Aerolineas Argentinas have had the fewest delays on this route over the last 12 months, with about 11% of their flights experiencing any sort of delay.

Sao Paulo (GRU) was the most common stop: 60% of momondo users choosing one-stop flights on this route connected there.

Flights via Miami (MIA) offer the lowest average return price of £802.

Flights connecting via Sao Paulo (GRU) have the shortest average one-way travel time: 14h 55m.

Sao Paulo (GRU) has the shortest average stopover time for this route: 1h 29m.

The number of flights available between Madrid and Buenos Aires is 20 per day as of August 2026. The most frequent departure time is 20:00, with 36% of daily flights leaving in the evening.

As of August 2026, there are 140 flights per week flying from Madrid to Buenos Aires. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.