AirHint found the following cheapest return flights from Paris (CDG) to Buenos Aires (EZE) in September 2025 (see full year).

Return flights

23 Sep - 30 Sep	Delta
29 Sep - 07 Oct	Delta
22 Sep - 02 Oct	Delta
22 Sep - 06 Oct	Delta
23 Sep - 25 Sep	Delta
29 Sep - 02 Oct	Delta
20 Sep - 29 Oct	Delta
18 Sep - 03 Oct	Avianca
18 Sep - 17 Oct	Avianca
20 Sep - 22 Sep	Delta
30 Sep - 23 Oct	Delta
28 Sep - 26 Oct	Turkish Airlines
30 Sep - 30 Oct	Delta
25 Sep - 29 Sep	Delta
26 Sep - 28 Sep	Delta
19 Sep - 21 Sep	Delta
18 Sep - 21 Sep	Delta
19 Sep - 26 Sep	Delta
21 Sep - 28 Sep	Delta
23 Sep - 30 Sep	Air France	direct

Also check the deals for one-way flights from Paris to Buenos Aires in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Paris to Buenos Aires in September from $966

Return flights