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

Return flights

04 May - 15 May	Ethiopian Airlines
15 May - 30 May	LATAM Airlines Group
15 May - 31 May	LATAM Airlines Group
03 May - 14 May	LATAM Airlines Group
13 May - 27 May	Air Canada
11 May - 21 May	British Airways
04 May - 23 May	British Airways
19 May - 03 Jun	British Airways
26 May - 05 Jun	British Airways
26 May - 09 Jun	British Airways
19 May - 04 Jun	British Airways
15 May - 15 Jun	British Airways
02 May - 12 May	British Airways
27 May - 07 Jun	Iberia For Level
15 May - 29 May	British Airways
11 May - 28 May	British Airways
28 May - 08 Jun	British Airways
16 May - 02 Jun	British Airways
21 May - 09 Jun	Iberia
23 May - 07 Jun	Iberia

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

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 May from $960

Return flights