AirHint found the following cheapest return flights from London (LGW) to Sao Paulo (GRU) in September 2025 (see full year).

Return flights

09 Sep - 21 Oct	TAP
10 Sep - 29 Sep	Wizz Air Malta
15 Sep - 29 Sep	easyJet
16 Sep - 16 Oct	TAP
15 Sep - 30 Sep	TAP
11 Sep - 29 Sep	TAP
18 Sep - 29 Sep	easyJet
05 Sep - 26 Sep	TAP
18 Sep - 05 Oct	TAP
09 Sep - 30 Sep	easyJet
03 Sep - 17 Sep	Wizz Air UK
18 Sep - 27 Sep	easyJet
10 Sep - 23 Sep	Air Europa
19 Sep - 17 Oct	Royal Air Maroc
11 Sep - 14 Oct	easyJet
19 Sep - 05 Oct	TAP
24 Sep - 02 Oct	Air Europa
23 Sep - 06 Oct	Air Europa
16 Sep - 14 Oct	Air Europa
23 Sep - 07 Oct	TAP

Also check the deals for one-way flights from London to Sao Paulo 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.

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Cheapest return flights from London to Sao Paulo in September from $763

Return flights