AirHint found the following cheapest return flights from Buenos Aires (AEP) to London (LGW) in October 2025 (see full year).

Return flights

21 Oct - 11 Nov	GOL Linhas Aéreas
14 Oct - 23 Oct	GOL Linhas Aéreas
15 Oct - 21 Oct	LATAM Airlines Group
03 Oct - 20 Oct	Aerolineas Argentinas
01 Oct - 05 Oct	Aerolineas Argentinas
04 Oct - 18 Oct	GOL Linhas Aéreas
15 Oct - 31 Oct	Avianca
18 Oct - 30 Oct	Avianca
16 Oct - 05 Nov	Avianca
20 Oct - 06 Nov	Avianca
19 Oct - 05 Nov	Avianca
10 Oct - 30 Oct	Avianca
17 Oct - 28 Oct	Avianca
21 Oct - 10 Nov	Avianca
16 Oct - 21 Oct	Avianca
03 Oct - 07 Nov	Avianca
25 Oct - 05 Nov	Avianca
24 Oct - 10 Nov	Avianca
18 Oct - 02 Nov	Avianca
28 Oct - 17 Nov	Avianca

Also check the deals for one-way flights from Buenos Aires to London in October.

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 Buenos Aires to London in October from $1156

Return flights