Cheapest return flights from Porto Alegre to Lisbon in September from $893

Best time to book flights for Porto Alegre (POA) to Lisbon (LIS) flights at AirHint

AirHint found the following cheapest return flights from Porto Alegre (POA) to Lisbon (LIS) in September 2025 (see full year).

Return flights

20 Sep - 30 Sep GOL Linhas Aéreas
24 Sep - 03 Oct TAP
14 Sep - 14 Oct LATAM Airlines Group
28 Sep - 16 Oct TAP direct
24 Sep - 11 Oct TAP direct
28 Sep - 13 Oct TAP
28 Sep - 22 Oct TAP
28 Sep - 15 Oct TAP
18 Sep - 25 Sep TAP direct
17 Sep - 25 Sep TAP direct
07 Sep - 18 Sep TAP direct
04 Sep - 11 Sep TAP direct
04 Sep - 16 Sep TAP direct
24 Sep - 25 Oct TAP direct
24 Sep - 04 Oct TAP direct
03 Sep - 18 Sep LATAM Airlines Group
07 Sep - 13 Sep TAP direct
03 Sep - 18 Sep TAP direct
17 Sep - 24 Sep TAP
25 Sep - 09 Oct TAP direct

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

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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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