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

Return flights

08 Sep - 29 Sep	Ryanair
12 Sep - 19 Sep	Ryanair
01 Sep - 18 Sep	easyJet
01 Sep - 15 Sep	easyJet
23 Sep - 07 Oct	easyJet
18 Sep - 22 Sep	Ryanair
15 Sep - 30 Sep	easyJet
07 Sep - 13 Sep	Ryanair
02 Sep - 26 Sep	easyJet
01 Sep - 30 Sep	easyJet
04 Sep - 23 Sep	easyJet
22 Sep - 13 Oct	easyJet
22 Sep - 06 Oct	easyJet
04 Sep - 09 Oct	easyJet
08 Sep - 08 Oct	Ryanair
17 Sep - 04 Oct	easyJet
02 Sep - 02 Oct	easyJet
23 Sep - 21 Oct	easyJet
21 Sep - 03 Oct	easyJet
30 Sep - 10 Oct	easyJet

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 702€

Return flights