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

Return flights

28 Aug - 08 Sep	easyJet
23 Aug - 07 Sep	easyJet
18 Aug - 25 Aug	easyJet
29 Aug - 12 Sep	Ryanair
12 Aug - 22 Aug	Ryanair
28 Aug - 31 Aug	Ryanair
27 Aug - 03 Sep	easyJet
11 Aug - 14 Aug	easyJet
19 Aug - 02 Sep	easyJet
08 Aug - 17 Aug	easyJet
19 Aug - 29 Aug	easyJet
23 Aug - 06 Sep	Ryanair
07 Aug - 11 Aug	easyJet
26 Aug - 16 Sep	Ryanair
24 Aug - 22 Sep	Ryanair
04 Aug - 11 Aug	easyJet
24 Aug - 09 Sep	Ryanair
07 Aug - 28 Aug	easyJet
06 Aug - 19 Aug	easyJet
31 Aug - 25 Sep	Ryanair

Also check the deals for one-way flights from London to Buenos Aires 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 London to Buenos Aires in August from 1408€

Return flights