Cheap flights from Miami to Buenos Aires from $252

The cheapest month to fly to Buenos Aires from Miami is in September. Flight prices, which tend to average around $749, 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 Miami during April instead. Flights to Buenos Aires in April, while not as cheap as those in September, still average around $754.

On average, the least expensive day to fly to Buenos Aires from Miami is on a Thursday. momondo users have found tickets for Thursday departures for as low as $842. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Saturday is $906.

Our most recent data shows that the best time of day to fly to Buenos Aires is in the morning. Flights from Miami to Buenos Aires during this time can be as low as $814. Try not to purchase tickets in the evening because they tend to be around $893. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Buenos Aires from Miami when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $828 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from Miami for as low as $783 on momondo.

There are 4 cabin classes available to choose from on Miami 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 2% on your flight if you consider stops on a Miami to Buenos Aires flight.

As of September 2026, prices for Miami to Buenos Aires flights are approximately 42% cheaper when compared to flights at the same time last year.

Delta and Sky Airline are the most popular carriers operating from Miami to Buenos Aires

Aerolineas Argentinas, LATAM Airlines and American Airlines are the top three most popular airlines that fly to Buenos Aires from Miami according to our data. Aerolineas Argentinas 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 9 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 Miami and Buenos Aires have experienced a delay on any given week. The average delay length over the past 12 months has been 158 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.

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

According to our data, LATAM Airlines have had the least number of delays on this route over the last 12 months; with about 19% of their flights experiencing any sort of delay.

Panama City (PTY) was the most common stop: 41% of momondo users choosing 1-stop flights on this route connected there.

Flights via Lima (LIM) offer the lowest average round-trip price of $589.

Flights connecting via Bogotá (BOG) have the shortest average one-way travel time: 11h 35m.

Bogotá (BOG) has the shortest average layover time for this route: 1h 35m.

As of September 2026, 9 flights take off from Miami and land in Buenos Aires each day. The most common flight departure time for this route is 11:00PM, with 100% of daily flights taking off in the evening.

As of September 2026, 64 flights take off from Miami and land in Buenos Aires each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.