Cheapest return flights from Lisbon to Buenos Aires in September from $938

Best time to book flights for Lisbon (LIS) to Buenos Aires (EZE) flights at AirHint

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

Return flights

12 Sep - 13 Oct SWISS
08 Sep - 08 Oct Lufthansa
13 Sep - 29 Sep LATAM Airlines Group
01 Sep - 20 Sep Air Europa
01 Sep - 19 Sep Air Europa
01 Sep - 21 Sep Air Europa
03 Sep - 12 Sep Air Europa
08 Sep - 15 Sep Ryanair
01 Sep - 08 Sep Royal Air Maroc
03 Sep - 03 Sep Air France

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

Skyscanner

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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