AirHint found the following cheapest return flights from Warsaw (WAW) to Buenos Aires (AEP) in October 2025 (see full year).

Return flights

27 Oct - 17 Nov	British Airways
22 Oct - 12 Nov	LOT
31 Oct - 22 Nov	TAP
01 Oct - 01 Nov	TAP
31 Oct - 21 Nov	TAP
28 Oct - 18 Nov	LOT
02 Oct - 30 Oct	British Airways
01 Oct - 22 Oct	TAP
01 Oct - 29 Oct	TAP
17 Oct - 26 Oct	LOT
13 Oct - 20 Oct	LOT
30 Oct - 16 Nov	LOT
26 Oct - 11 Nov	LOT
03 Oct - 19 Oct	Lufthansa
01 Oct - 12 Oct	TAP
30 Oct - 10 Nov	SWISS

Also check the deals for one-way flights from Warsaw to Buenos Aires in October.

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 Warsaw to Buenos Aires in October from 1076€

Return flights