There are five airlines offering flights to Buenos Aires. The most direct route isn’t necessarily the cheapest – being flexible is key to finding the lowest airfare rates. For example, try searching by month to see the best time of the week to fly.
You can use the filters on your search to see more flights and find cheaper rates – Buenos Aires has more than one airport. So if you don't need to fly into Buenos Aires Ezeiza Ministro Pistarini Airport, it's worth checking your other options. The 12780 km flight usually takes about 24 hrs 10 mins.
During this peak season, hotel and holiday prices often increase too, so it's best to book early. Or you could keep your fingers crossed and hold out for a last-minute deal.