Cheap return flights from Europe to Buenos Aires in Argentina are pretty rare these days..if you need some good option you can consider two interesting deals based on either SkyTeam partners Air France / KLM or a Star Alliance member Lufthansa. The cheapest solution is at this moment on SkyTeam when departing from main airports in Italy or Frankfurt. Return flights with two layovers on your way are available from €456 (Italy) or €503 (Germany). If you prefer direct service you can consider to book fairly priced non-stop flights from Frankfurt to Buenos Aires already for €611. This is based on Lufthansa, the only five-star European airline.
Air France / KLM – Very limited availability in May 2018
Italy – Buenos Aires from €498 (Directly with airline also compare travel dates there)
Frankfurt – Buenos Aires for €548 (Directly with airline also compare travel dates there)
Lufthansa – Look for flights departing from 16th of January to 22nd of March or 4th of April to 17th of May 2018. Based on date of departure to South America.
Frankfurt – Buenos Aires for €645 (Directly with airline also compare travel dates there)
Frankfurt – Buenos Aires from €611 (Lufthansa non-stop flights)
Booking sample of very cheap return air tickets to Argentina from Italy for €456. This is a budget solution attractive for vast majority of travelers in Europe. In this case you would deaprt from Turin to Buenos Aires on Sunday, 19th of May. Your inbound flight back to Italy would be then on 4th of June 2018.
Booking sample of Lufthansa cheap non-stop flights from Germany to Argentina below. In this case you would fly direct from Frankfurt to Buenos Aires on Saturday, 12th of May. Your return flight from South America to Europe would be then on 26th of May 2018.This is on Lufthansa, a 5-star carrier and the only European airline ranked by the highest rating by Skytrax.