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

Return flights

15 Sep - 06 Oct	Iberia
20 Sep - 02 Oct	Royal Air Maroc
15 Sep - 29 Sep	Iberia
15 Sep - 25 Sep	Iberia
15 Sep - 22 Sep	Iberia
21 Sep - 29 Sep	Iberia
15 Sep - 28 Sep	Iberia
28 Sep - 10 Oct	Iberia
17 Sep - 07 Oct	Iberia
28 Sep - 13 Oct	Iberia
10 Sep - 21 Sep	Iberia
10 Sep - 18 Sep	Iberia
10 Sep - 24 Sep	Iberia
10 Sep - 17 Sep	Iberia
10 Sep - 25 Sep	Iberia
20 Sep - 03 Oct	Iberia
21 Sep - 09 Oct	Iberia
28 Sep - 09 Oct	Iberia
28 Sep - 19 Oct	Iberia
15 Sep - 02 Oct	Iberia

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

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.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon

Cheapest return flights from Sao Paulo to Lisbon in September from $737

Return flights