Cheap flights from Miami to Buenos Aires from £189

In general, September is the cheapest month to fly from Miami to Buenos Aires. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £553. If you don’t want to visit Buenos Aires in September, then you should wait until April to fly from Miami, when ticket prices are also cheap, with an average price of £557.

The cheapest day to depart on your flight to Buenos Aires is on a Monday when prices can be found for as low as £532. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Miami because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £878.

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 £613 when searching weeks before you fly. 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 £579 on momondo.

There is only 1 cabin class 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.

No. A direct flight is the cheapest option for a flight between Miami to Buenos Aires.

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 159 minutes.

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

Thursday is statistically the day of the week that experiences the fewest 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 fewest delays on this route over the last 12 months, with about 19% of their flights experiencing any sort of delay.

As of September 2026, 7 flights take off from Miami and land in Buenos Aires each day. The most common flight departure time for this route is 23:00, with 78% of daily flights taking off in the evening.

As of September 2026, 52 flights take off from Miami and land in Buenos Aires each week. The most common flight departure day for this route is Sun, with 21% of weekly flights taking off on this day.