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

Return flights

19 Sep - 21 Oct	Avianca
01 Sep - 30 Sep	Avianca
19 Sep - 11 Oct	Avianca
03 Sep - 21 Sep	Delta
11 Sep - 21 Sep	Delta
09 Sep - 19 Sep	Delta
01 Sep - 14 Sep	Delta
02 Sep - 14 Sep	Delta
09 Sep - 21 Sep	Delta
08 Sep - 22 Sep	Delta
07 Sep - 14 Sep	Delta
03 Sep - 23 Sep	Delta
24 Sep - 24 Oct	Delta
24 Sep - 16 Oct	Delta
15 Sep - 15 Oct	Delta
25 Sep - 15 Oct	Delta
25 Sep - 16 Oct	Delta
25 Sep - 14 Oct	Delta
07 Sep - 07 Oct	Delta
18 Sep - 15 Oct	Delta

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 781€

Return flights