Cheapest return GRU–LHR flights, September

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

Return flights

24 Sep - 30 Sep Avianca
28 Sep - 07 Oct Avianca
24 Sep - 07 Oct Avianca
22 Sep - 28 Sep Avianca
30 Sep - 28 Oct Avianca
29 Sep - 07 Oct Avianca
30 Sep - 07 Oct Avianca
20 Sep - 24 Sep Avianca
25 Sep - 30 Sep Avianca
23 Sep - 24 Oct Avianca
21 Sep - 07 Oct Avianca
09 Sep - 02 Oct Air Canada
18 Sep - 28 Sep Avianca
18 Sep - 27 Sep Avianca
24 Sep - 08 Oct Avianca
30 Sep - 09 Oct Avianca
18 Sep - 21 Sep Avianca
14 Sep - 22 Sep Avianca
14 Sep - 27 Sep Avianca
14 Sep - 28 Sep Avianca

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

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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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