Cheapest return flights from London to Buenos Aires in September from $1120

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

14 Sep - 02 Oct Air Canada
09 Sep - 17 Sep Air Canada
04 Sep - 25 Oct British Airways
17 Sep - 24 Sep Air Canada
10 Sep - 24 Sep Air Canada
10 Sep - 17 Sep Air Canada
23 Sep - 29 Sep Air Canada
04 Sep - 29 Sep British Airways
02 Sep - 16 Sep United
15 Sep - 22 Sep United
01 Sep - 30 Sep United
15 Sep - 24 Sep United
24 Sep - 01 Oct Air Canada
24 Sep - 08 Oct Air Canada
25 Sep - 04 Oct Delta
22 Sep - 02 Oct Delta
28 Sep - 05 Oct Delta
26 Sep - 05 Oct British Airways
27 Sep - 05 Oct British Airways
20 Sep - 01 Oct British Airways

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

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.

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