AirHint found the following cheapest return flights from Porto Alegre (POA) to Lisbon (LIS) in May 2026 (see full year).

Return flights

03 May - 12 May	TAP	direct
03 May - 16 May	TAP	direct
03 May - 09 May	TAP	direct
06 May - 04 Jun	TAP	direct
27 May - 04 Jun	TAP	direct
03 May - 14 May	TAP	direct
13 May - 21 May	TAP	direct
26 May - 09 Jun	Azul Airlines
13 May - 18 May	TAP
01 May - 07 May	Azul Airlines
06 May - 03 Jun	TAP
02 May - 15 May	Azul Airlines
02 May - 11 May	Azul Airlines
05 May - 03 Jun	Azul Airlines
01 May - 15 Jun	Azul Airlines
01 May - 31 May	Azul Airlines

Also check the deals for one-way flights from Porto Alegre 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 Porto Alegre to Lisbon in May from $996

Return flights