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

Return flights

12 Jul - 20 Aug	TAP	direct
22 Jul - 22 Aug	TAP	direct
30 Jul - 13 Aug	TAP	direct
15 Jul - 22 Aug	TAP	direct
08 Jul - 18 Jul	TAP	direct
09 Jul - 28 Jul	TAP	direct
01 Jul - 16 Jul	TAP	direct
09 Jul - 23 Jul	TAP	direct
23 Jul - 04 Aug	TAP	direct
02 Jul - 07 Jul	TAP	direct
23 Jul - 31 Jul	TAP
13 Jul - 21 Jul	GOL Linhas Aéreas
01 Jul - 06 Jul	TAP
19 Jul - 02 Aug	TAP
11 Jul - 01 Aug	LATAM Airlines Group
11 Jul - 18 Jul	TAP
12 Jul - 26 Jul	TAP
23 Jul - 01 Aug	TAP
08 Jul - 01 Aug	TAP

Also check the deals for one-way flights from Porto Alegre to Lisbon in July.

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 July from $994

Return flights