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

Return flights

13 May - 27 May	Air Canada
06 May - 26 May	Air Canada
20 May - 09 Jun	Air Canada
06 May - 20 May	Air Canada
05 May - 06 May	LATAM Airlines Group
05 May - 07 May	LATAM Airlines Group
07 May - 20 May	Air Canada
21 May - 03 Jun	Air Canada
04 May - 19 May	Air Canada
21 May - 31 May	Air Canada
04 May - 15 May	Air Canada
20 May - 05 Jun	Air Canada
28 May - 17 Jun	Air Canada
03 May - 19 May	Iberia
28 May - 16 Jun	Air Canada
29 May - 08 Jun	Iberia
22 May - 20 Jun	Iberia
25 May - 06 Jun	Iberia
19 May - 06 Jun	British Airways
05 May - 04 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 890€

Return flights