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

Return flights

01 Dec - 05 Dec	Avianca
03 Dec - 13 Dec	Avianca
08 Dec - 14 Dec	Avianca
29 Dec - 26 Jan	Ryanair
21 Dec - 18 Jan	Ryanair
24 Dec - 26 Jan	Iberia
22 Dec - 12 Jan	Ryanair
25 Dec - 28 Jan	Iberia
26 Dec - 09 Jan	Air Europa
04 Dec - 25 Jan	Vueling Airlines
24 Dec - 24 Jan	Iberia
12 Dec - 24 Jan	TAP
04 Dec - 21 Dec	Avianca
02 Dec - 21 Dec	Avianca
04 Dec - 24 Dec	Avianca
10 Dec - 28 Jan	Avianca
08 Dec - 22 Dec	Avianca
08 Dec - 23 Dec	Avianca
08 Dec - 21 Dec	Avianca
07 Dec - 22 Dec	Avianca

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

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 December from 866€

Return flights