AirHint found the following cheapest return flights from London (LCY) to Buenos Aires (EZE) in October 2026 (see full year).

Return flights

20 Oct - 30 Nov	Iberia
19 Oct - 29 Oct	Iberia
26 Oct - 17 Nov	Iberia
28 Oct - 04 Nov	Iberia
26 Oct - 09 Nov	Iberia
29 Oct - 09 Nov	Iberia
28 Oct - 12 Nov	Iberia
20 Oct - 03 Nov	Iberia
25 Oct - 08 Nov	Iberia
30 Oct - 05 Nov	Iberia
30 Oct - 13 Nov	Iberia
06 Oct - 20 Oct	British Airways
04 Oct - 22 Oct	British Airways
06 Oct - 22 Oct	British Airways
15 Oct - 22 Oct	British Airways
05 Oct - 19 Oct	British Airways
08 Oct - 22 Oct	British Airways
05 Oct - 18 Oct	ITA Airways
12 Oct - 26 Oct	ITA Airways
19 Oct - 31 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 984€

Return flights