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

Return flights

14 May - 21 May	TAP	direct
14 May - 23 May	TAP	direct
07 May - 19 May	TAP	direct
06 May - 26 May	TAP	direct
06 May - 28 May	TAP	direct
07 May - 26 May	TAP	direct
07 May - 28 May	TAP	direct
28 May - 11 Jun	TAP	direct
05 May - 26 May	GOL Linhas Aéreas
05 May - 28 May	GOL Linhas Aéreas
16 May - 23 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 $1072

Return flights