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

Return flights

08 Sep - 23 Sep	LATAM Airlines Group
30 Sep - 30 Oct	LATAM Airlines Group
21 Sep - 22 Oct	JetSmart
09 Sep - 23 Sep	GOL Linhas Aéreas
12 Sep - 28 Sep	Arajet
26 Sep - 13 Oct	Iberia For Level
03 Sep - 16 Sep	Iberia
05 Sep - 21 Sep	Iberia
30 Sep - 21 Oct	Iberia For Level
29 Sep - 30 Oct	Iberia For Level
10 Sep - 23 Sep	LATAM Airlines Group
01 Sep - 18 Sep	LATAM Airlines Group
08 Sep - 19 Sep	Air Canada
18 Sep - 28 Sep	LATAM Airlines Group
27 Sep - 10 Oct	Iberia For Level
29 Sep - 17 Oct	Iberia For Level
26 Sep - 03 Oct	Iberia For Level
26 Sep - 15 Oct	Iberia For Level
10 Sep - 24 Sep	LATAM Airlines Group
16 Sep - 02 Oct	Iberia For Level

Also check the deals for one-way flights from Buenos Aires to Lisbon 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 Buenos Aires to Lisbon in September from 871€

Return flights