Cheap flights from Madrid to Buenos Aires from $436

The cheapest month to fly to Buenos Aires from Madrid is in May. Flight prices, which tend to average around $1,139, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Buenos Aires from Madrid during September instead. Flights to Buenos Aires in September, while not as cheap as those in May, still average around $1,146.

On average, the least expensive day to fly to Buenos Aires from Madrid is on a Saturday. momondo users have found tickets for Saturday departures for as low as $1,468. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Monday is $1,706.

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 $1,517. Try not to purchase tickets in the morning because they tend to be around $1,538. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 $1,274 when searching weeks out. 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 $1,185 on momondo.

There are 4 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 April 2026, prices for Madrid to Buenos Aires flights are approximately 9% more expensive when compared to flights at the same time last year.

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

Iberia, Aerolineas Argentinas and American Airlines 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 52% of people opting to fly with this airline when traveling to Buenos Aires. Keep in mind that there are 4 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 15% 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 177 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.

Monday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 10% of their flights experiencing any sort of delay.

Miami (MIA) was the most common stop: 38% of momondo users choosing 1-stop flights on this route connected there.

Flights via Miami (MIA) offer the lowest average round-trip price of $1,023.

Flights connecting via Sao Paulo (GRU) have the shortest average one-way travel time: 15h 25m.

Barcelona (BCN) has the shortest average layover time for this route: 2h 05m.

20 flights are operational daily from Madrid to Buenos Aires as of April 2026. The most popular departure time for this route is 8:00PM, with 45% of flights per day taking off in the evening.

The number of flights available between Madrid and Buenos Aires is 143 per week as of April 2026. The most frequent departure day is Fri, with 17% of weekly flights leaving on this day.