AirHint found the following cheapest return flights from Sao Paulo (GRU) to Lisbon (LIS) in August 2026 (see full year).

Return flights

17 Aug - 31 Aug	British Airways
17 Aug - 29 Aug	British Airways
17 Aug - 11 Sep	British Airways
17 Aug - 12 Sep	British Airways
17 Aug - 14 Sep	British Airways
17 Aug - 13 Sep	British Airways
10 Aug - 20 Aug	Iberia
10 Aug - 22 Aug	Iberia
08 Aug - 22 Aug	Iberia
15 Aug - 29 Aug	Iberia
04 Aug - 27 Aug	Iberia
14 Aug - 24 Aug	Iberia
11 Aug - 23 Aug	Iberia
07 Aug - 24 Aug	Iberia
18 Aug - 01 Sep	Iberia
20 Aug - 02 Sep	Iberia
20 Aug - 06 Sep	Iberia
14 Aug - 11 Sep	Iberia
14 Aug - 12 Sep	Iberia
14 Aug - 14 Sep	Iberia

Also check the deals for one-way flights from Sao Paulo to Lisbon in August.

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 Sao Paulo to Lisbon in August from $710

Return flights