Cheapest return flights from London to Buenos Aires in September from $840

Best time to book flights for London (LHR) to Buenos Aires (EZE) flights at AirHint

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

Return flights

16 Sep - 02 Oct Air Canada
15 Sep - 29 Sep Air Canada
27 Sep - 08 Oct Turkish Airlines
17 Sep - 27 Sep Turkish Airlines
24 Sep - 04 Oct Turkish Airlines
11 Sep - 22 Sep Air Canada
19 Sep - 01 Oct Air Canada
24 Sep - 10 Oct Turkish Airlines
02 Sep - 09 Sep British Airways
03 Sep - 17 Sep Turkish Airlines
01 Sep - 16 Sep British Airways
30 Sep - 17 Oct British Airways
02 Sep - 10 Sep British Airways
05 Sep - 21 Sep British Airways
11 Sep - 21 Sep British Airways
03 Sep - 13 Sep British Airways
25 Sep - 10 Oct British Airways
26 Sep - 10 Oct British Airways
25 Sep - 18 Oct Air France
20 Sep - 11 Oct Air France

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

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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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