Cheap flights from Lima to Buenos Aires from $118

The cheapest month to fly to Buenos Aires from Lima is in May. Flight prices, which tend to average around $327, 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 Lima during June instead. Flights to Buenos Aires in June, while not as cheap as those in May, still average around $333.

On average, the least expensive day to fly to Buenos Aires from Lima is on a Thursday. momondo users have found tickets for Thursday departures for as low as $383. 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 $430.

Our most recent data shows that the best time of day to fly to Buenos Aires is in the evening. Flights from Lima to Buenos Aires during this time can be as low as $396. Try not to purchase tickets in the morning because they tend to be around $422. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Lima J Chavez Intl to Buenos Aires Jorge Newbery for the best Lima J Chavez Intl - Buenos Aires flight prices

You are more likely to see cheaper flights to Buenos Aires from Lima when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $422 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from Lima for as low as $392 on momondo.

There are 3 cabin classes available to choose from on Lima 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 7% on your flight if you consider stops on a Lima to Buenos Aires flight.

As of August 2026, prices for Lima to Buenos Aires flights are approximately 9% cheaper when compared to flights at the same time last year.

JetSMART and Sky Airline are the most popular carriers operating from Lima J Chavez Intl to Buenos Aires

LATAM Airlines, JetSMART and Aerolineas Argentinas are the top three most popular airlines that fly to Buenos Aires from Lima according to our data. LATAM Airlines is the first choice among our users, with 61% 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 14% of flights between Lima and Buenos Aires have experienced a delay on any given week. The average delay length over the past 12 months has been 108 minutes.

Generally, flights departing at night 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, Sky Airline have had the least number of delays on this route over the last 12 months; with about 6% of their flights experiencing any sort of delay.

7 flights are operational daily from Lima to Buenos Aires as of August 2026. The most popular departure time for this route is 9:00PM, with 58% of flights per day taking off in the evening.

As of August 2026, there are 54 flights per week flying from Lima to Buenos Aires. The most common day of the week flights depart is Sun, with 26% of flights taking off on this day.