Cheap flights from the United States to Buenos Aires from $198

The cheapest month to fly to Buenos Aires from United States is in September. Flight prices, which tend to average around $802, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Buenos Aires from United States during October instead. Flights to Buenos Aires in October, while not as cheap as those in September, still average around $860.

On average, the least expensive day to fly to Buenos Aires from United States is on a Monday. momondo users have found tickets for Monday departures for as low as $1,120. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Sunday is $1,345.

Fly from Miami to Buenos Aires Ministro Pistarini for the best United States - Buenos Aires flight prices

You are more likely to see cheaper flights to Buenos Aires from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,156 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from United States for as low as $1,013 on momondo.

You could potentially save up to 53% on your flight if you consider stops on a United States to Buenos Aires flight.

Sky Airline, Delta, and Copa Airlines are the most popular carriers operating from United States to Buenos Aires

American Airlines, Aerolineas Argentinas and LATAM Airlines are the top three most popular airlines that fly to Buenos Aires from United States according to our data. American Airlines is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Buenos Aires. Keep in mind that there are 10 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 29% of flights between United States and Buenos Aires have experienced a delay on any given week. The average delay length over the past 12 months has been 168 minutes.

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

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday 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 20% of their flights experiencing any sort of delay.

As of May 2026, there are 9 flights per day flying from United States to Buenos Aires. The most common time of day flights depart is 11:00PM, with 76% of flights taking off in the evening.

As of May 2026, 68 flights take off from United States and land in Buenos Aires each week. The most common flight departure day for this route is Wed, with 18% of weekly flights taking off on this day.