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

Return flights

09 Sep - 23 Sep	Royal Air Maroc
01 Sep - 22 Sep	KLM
22 Sep - 27 Sep	Avianca
01 Sep - 29 Sep	Avianca
14 Sep - 28 Sep	Avianca
29 Sep - 04 Oct	Avianca
14 Sep - 12 Oct	Avianca
17 Sep - 12 Oct	Avianca
29 Sep - 03 Oct	Avianca
27 Sep - 04 Oct	Avianca
19 Sep - 03 Oct	Avianca
26 Sep - 03 Oct	Avianca
09 Sep - 24 Sep	Avianca
30 Sep - 05 Oct	Avianca
07 Sep - 18 Sep	TAP
03 Sep - 13 Sep	Lufthansa
19 Sep - 03 Oct	LATAM Airlines Group	direct
11 Sep - 19 Sep	LATAM Airlines Group	direct
07 Sep - 18 Sep	LATAM Airlines Group	direct
26 Sep - 03 Oct	LATAM Airlines Group	direct

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 660€

Return flights