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

Return flights

06 Oct - 11 Oct	Finnair
22 Oct - 26 Oct	Finnair
07 Oct - 20 Oct	Finnair
08 Oct - 15 Oct	American Airlines
01 Oct - 15 Oct	American Airlines
07 Oct - 22 Oct	American Airlines
09 Oct - 16 Oct	American Airlines
01 Oct - 22 Oct	American Airlines
02 Oct - 22 Oct	American Airlines
03 Oct - 22 Oct	American Airlines
06 Oct - 06 Nov	easyJet
31 Oct - 04 Nov	Vueling Airlines
31 Oct - 08 Nov	Vueling Airlines
30 Oct - 07 Nov	Vueling Airlines
31 Oct - 23 Nov	Vueling Airlines
31 Oct - 07 Nov	Vueling Airlines
08 Oct - 12 Nov	easyJet
31 Oct - 22 Nov	Vueling Airlines
28 Oct - 04 Nov	Iberia
23 Oct - 06 Nov	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 934€

Return flights