AirHint found the following cheapest return flights from Prague (PRG) to Buenos Aires (AEP) in September 2025 (see full year).

Return flights

18 Sep - 31 Oct	Ryanair
22 Sep - 03 Oct	Volotea
23 Sep - 06 Oct	Transavia France
23 Sep - 05 Oct	Transavia France
11 Sep - 25 Sep	Ryanair
23 Sep - 03 Oct	Transavia France
21 Sep - 03 Oct	Ryanair
21 Sep - 04 Oct	Transavia France
08 Sep - 15 Sep	Ryanair
11 Sep - 24 Sep	LATAM Airlines Group
20 Sep - 03 Oct	Ryanair
23 Sep - 04 Oct	Transavia France
07 Sep - 23 Sep	Smart Wings
20 Sep - 30 Sep	Transavia France
19 Sep - 03 Oct	Transavia France
20 Sep - 21 Sep	Transavia France
08 Sep - 17 Sep	Transavia France
04 Sep - 11 Sep	Ryanair

Also check the deals for one-way flights from Prague 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 Prague to Buenos Aires in September from $1162

Return flights