There are 83 direct and indirect flights connecting Amsterdam and Buenos Aires every week, with the journey taking 21 hrs on average. Scroll through your results to compare flight times and prices
Or, if you're fairly flexible on dates, try to get a last minute-deal by regularly checking the Netflights website.
If you're not sure who to fly with from Amsterdam, you might like to know that LATAM is the most popular airline for this route.
But if you can't find one which is right for you, try looking at flights to other cities in Argentina to check out some other options.