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

Return flights

03 May - 21 May	Avianca
14 May - 22 May	Flybondi
02 May - 20 May	Air Canada
07 May - 26 May	Air Canada
14 May - 27 May	Avianca
04 May - 18 May	Flybondi
12 May - 11 Jun	LATAM Airlines Group
16 May - 26 May	Avianca
20 May - 08 Jun	Avianca
03 May - 24 May	Avianca
28 May - 10 Jun	Avianca
21 May - 10 Jun	GOL Linhas Aéreas
26 May - 12 Jun	Avianca
10 May - 23 May	Avianca
29 May - 09 Jun	Avianca
11 May - 27 May	Avianca
28 May - 17 Jun	GOL Linhas Aéreas
28 May - 18 Jun	GOL Linhas Aéreas
18 May - 03 Jun	GOL Linhas Aéreas
20 May - 25 Jun	LATAM Airlines Group

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 $1014

Return flights