AirHint found the following cheapest return flights from Buenos Aires (EZE) to London (STN) in August 2025 (see full year).

Return flights

30 Aug - 15 Sep	Avianca
16 Aug - 10 Sep	Copa
16 Aug - 12 Sep	Copa
30 Aug - 04 Sep	Copa
22 Aug - 13 Sep	Boliviana de Aviacion
18 Aug - 02 Sep	Air France
20 Aug - 27 Aug	LATAM Airlines Group
22 Aug - 29 Aug	LATAM Airlines Group
18 Aug - 01 Sep	KLM
29 Aug - 05 Sep	Avianca
20 Aug - 06 Sep	LATAM Airlines Group
21 Aug - 01 Sep	LATAM Airlines Group
21 Aug - 28 Aug	KLM

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

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 August from 1149€

Return flights