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

Return flights

04 Aug - 17 Aug	GOL Linhas Aéreas
06 Aug - 20 Aug	Aerolineas Argentinas
03 Aug - 25 Aug	GOL Linhas Aéreas
13 Aug - 20 Aug	GOL Linhas Aéreas
06 Aug - 13 Aug	Aerolineas Argentinas
13 Aug - 28 Aug	GOL Linhas Aéreas
02 Aug - 16 Aug	Aerolineas Argentinas
13 Aug - 03 Sep	Aerolineas Argentinas
13 Aug - 04 Sep	JetSmart
14 Aug - 21 Aug	Aerolineas Argentinas
09 Aug - 16 Aug	GOL Linhas Aéreas
07 Aug - 15 Aug	Aerolineas Argentinas
14 Aug - 03 Sep	Aerolineas Argentinas
29 Aug - 07 Sep	GOL Linhas Aéreas
20 Aug - 02 Sep	SWISS
18 Aug - 01 Sep	SWISS
21 Aug - 01 Sep	SWISS
21 Aug - 09 Sep	SWISS
20 Aug - 09 Sep	SWISS
23 Aug - 02 Sep	SWISS

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.

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from Buenos Aires to London in August from $1275

Return flights