AirHint found the following cheapest return flights from Lisbon (LIS) to Buenos Aires (EZE) in April 2026 (see full year).

Return flights

30 Apr - 29 May	Air Europa
22 Apr - 06 May	Air Europa
08 Apr - 16 May	KLM
12 Apr - 16 May	KLM
01 Apr - 22 Apr	Iberia
08 Apr - 22 Apr	LATAM Airlines Group
12 Apr - 23 Apr	LATAM Airlines Group
01 Apr - 05 Apr	TAP
09 Apr - 12 Apr	Azul Airlines
04 Apr - 18 Apr	LATAM Airlines Group

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

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 Lisbon to Buenos Aires in April from 799€

Return flights