Cheapest return flights from London to Buenos Aires in August from $1238

Best time to book flights for London (LON) to Buenos Aires (AEP) flights at AirHint

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

Return flights

28 Aug - 09 Sep Ryanair
27 Aug - 09 Sep Ryanair
28 Aug - 10 Sep Iberia
19 Aug - 04 Sep Ryanair
12 Aug - 19 Aug Ryanair
17 Aug - 19 Sep British Airways
08 Aug - 15 Aug Ryanair
20 Aug - 04 Sep British Airways
14 Aug - 18 Sep British Airways
13 Aug - 18 Sep British Airways
15 Aug - 01 Sep British Airways
23 Aug - 31 Aug British Airways
21 Aug - 04 Sep British Airways
13 Aug - 18 Aug British Airways
18 Aug - 31 Aug British Airways
18 Aug - 26 Aug British Airways
20 Aug - 26 Aug British Airways
04 Aug - 26 Aug Ryanair
03 Aug - 26 Aug easyJet
16 Aug - 31 Aug British Airways

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

Skyscanner

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 Buenos Aires

Cheap car rent in Buenos Aires