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

Return flights

21 Sep - 25 Sep	GOL Linhas Aéreas
23 Sep - 30 Sep	Copa
22 Sep - 29 Sep	GOL Linhas Aéreas
22 Sep - 20 Oct	GOL Linhas Aéreas
19 Sep - 23 Sep	GOL Linhas Aéreas
19 Sep - 09 Oct	GOL Linhas Aéreas
27 Sep - 12 Oct	GOL Linhas Aéreas
27 Sep - 13 Oct	GOL Linhas Aéreas
27 Sep - 14 Oct	Ethiopian Airlines
28 Sep - 13 Oct	TAP

Also check the deals for one-way flights from Brasilia 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 Brasilia to London in September from 1037€

Return flights