AirHint found the following cheapest return flights from Buenos Aires (EZE) to Lisbon (LIS) in October 2025 (see full year).

Return flights

22 Oct - 08 Nov	Iberia For Level
22 Oct - 03 Nov	Iberia For Level
13 Oct - 26 Oct	LATAM Airlines Group
08 Oct - 21 Oct	Iberia For Level
25 Oct - 05 Nov	Iberia For Level
08 Oct - 20 Oct	Iberia For Level
25 Oct - 14 Nov	Air Canada
29 Oct - 11 Nov	Iberia For Level
22 Oct - 01 Nov	Iberia For Level
18 Oct - 06 Nov	Iberia For Level
26 Oct - 09 Nov	Iberia For Level
29 Oct - 09 Nov	Iberia For Level
22 Oct - 18 Nov	Iberia
07 Oct - 20 Oct	Iberia For Level
01 Oct - 13 Oct	Iberia For Level
06 Oct - 25 Oct	Iberia For Level
03 Oct - 20 Oct	Iberia For Level
01 Oct - 20 Oct	Iberia For Level
09 Oct - 21 Oct	Air Canada
04 Oct - 14 Oct	Air Canada

Also check the deals for one-way flights from Buenos Aires to Lisbon 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 Buenos Aires to Lisbon in October from 894€

Return flights