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

Return flights

12 Oct - 16 Nov	Air Canada
30 Oct - 19 Nov	Air Canada
01 Oct - 05 Nov	Air Canada
30 Oct - 05 Nov	Air Canada
24 Oct - 10 Nov	Air Canada
24 Oct - 09 Nov	Air Canada
24 Oct - 02 Nov	Air Canada
08 Oct - 23 Oct	Air Canada
08 Oct - 16 Oct	Air Canada
08 Oct - 22 Oct	Air Canada
07 Oct - 23 Oct	Air Canada
07 Oct - 20 Oct	Air Canada
01 Oct - 15 Oct	Air Canada
21 Oct - 02 Nov	Air Canada
03 Oct - 26 Oct	Air Canada
30 Oct - 15 Nov	Air Canada
03 Oct - 25 Oct	Air Canada
28 Oct - 03 Nov	United
01 Oct - 21 Oct	Delta
18 Oct - 25 Oct	Iberia

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

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 October from $1062

Return flights