You can currently fly from Paris-Orly to Buenos Aires with Royal Air Maroc and Aerolineas Argentinas for an amazing price of €376. Flights are somewhat hard to find, as neither airline offers these flights directly, but availability seems to be quite good in October, November,

You would first fly to Casablanca with Royal Air
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Royal Air Maroc does not sell these flights on its site, and we were not able to see the fare rules. What we do know, is that one piece of luggage is included. We were also able to find out that all flights have to depart either on Friday or Sunday. Keep that in mind when looking for available dates on online travel agencies such as Skyscanner. The highest availability for this price seems to be in October, November, and December.
Information & Tips for Buenos Aires
Buenos Aires, the capital of Argentina, is known for its European-style architecture, tango culture, and neighborhoods like San Telmo, La Boca, and Recoleta. Key sights include Plaza de Mayo, Teatro Colón, and the Recoleta Cemetery. The local currency is the Argentine peso (ARS), and while card payments are accepted in many places, cash is still widely used—especially for small purchases. Prices can be low by international standards, though inflation causes frequent changes. The climate is temperate, with hot, humid summers and mild winters, making spring and autumn the most comfortable times to visit.
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Source: Travelfree
Cover Picture: Ditmar Lange