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

Return flights

18 Sep - 08 Oct	Royal Air Maroc
15 Sep - 05 Oct	Royal Air Maroc
21 Sep - 28 Sep	Iberia
16 Sep - 23 Sep	Iberia
22 Sep - 08 Oct	Iberia
22 Sep - 06 Oct	Air China
14 Sep - 28 Sep	Iberia
15 Sep - 08 Oct	Royal Air Maroc
16 Sep - 26 Sep	LATAM Airlines Group
15 Sep - 28 Sep	Iberia
18 Sep - 02 Oct	LATAM Airlines Group
11 Sep - 27 Sep	Iberia
23 Sep - 05 Oct	Avianca
08 Sep - 29 Sep	LATAM Airlines Group
08 Sep - 19 Sep	LATAM Airlines Group
03 Sep - 19 Sep	LATAM Airlines Group
11 Sep - 10 Oct	Iberia
03 Sep - 25 Sep	LATAM Airlines Group
24 Sep - 10 Oct	Iberia
14 Sep - 01 Oct	Iberia

Also check the deals for one-way flights from Sao Paulo to London 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 Sao Paulo to London in September from 751€

Return flights