Cheap flights from Atlanta to Buenos Aires from $271

The cheapest month to fly to Buenos Aires from Atlanta is in October. Flight prices, which tend to average around $1,270, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Buenos Aires from Atlanta during November instead. Flights to Buenos Aires in November, while not as cheap as those in October, still average around $1,290.

On average, the least expensive day to fly to Buenos Aires from Atlanta is on a Monday. momondo users have found tickets for Monday departures for as low as $1,310. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Wednesday is $1,613.

Fly from Atlanta Hartsfield-Jackson to Buenos Aires Ministro Pistarini for the best Atlanta Hartsfield-Jackson - Buenos Aires flight prices

You are more likely to see cheaper flights to Buenos Aires from Atlanta when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,502 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from Atlanta for as low as $891 on momondo.

There are 3 cabin classes available to choose from on Atlanta Hartsfield-Jackson 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 33% on your flight if you consider stops on a Atlanta to Buenos Aires flight.

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

Flights via Sao Paulo (GRU) offer the lowest average round-trip price of $1,223.

Flights connecting via Miami (MIA) have the shortest average one-way travel time: 12h 02m.

Miami (MIA) has the shortest average layover time for this route: 1h 43m.

As of February 2026, there are 4 flights per day flying from Atlanta to Buenos Aires. The most common time of day flights depart is 9:00PM, with 100% of flights taking off in the evening.

As of February 2026, there are 32 flights per week flying from Atlanta to Buenos Aires. The most common day of the week flights depart is Wed, with 25% of flights taking off on this day.