In general, when booking your flight to Buenos Aires, May is the cheapest month on average.
Most flyers found that booking flight tickets 60 days in advance of their planned departure date is, on average, the best time to get cheap flights to Buenos Aires.
Most of our users find that booking their departure to Buenos Aires on a Monday is the cheapest. Conversely, departing on a Thursday seems to be the most expensive.
Generally, when visiting Buenos Aires, afternoon flights represent the best value. midday flights are likely to have higher prices.