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

Return flights

13 Oct - 27 Oct	Air Europa
31 Oct - 15 Nov	Air Europa
30 Oct - 03 Nov	Wizz Air UK
31 Oct - 29 Nov	Air Europa
13 Oct - 20 Oct	Air Europa
30 Oct - 16 Nov	Air Europa
13 Oct - 24 Oct	Air Europa
14 Oct - 21 Oct	Air Europa
23 Oct - 30 Oct	Wizz Air UK
11 Oct - 19 Oct	Wizz Air UK
15 Oct - 27 Oct	Air Europa
31 Oct - 30 Nov	Air Europa
13 Oct - 18 Oct	Air Europa
31 Oct - 22 Nov	Vueling Airlines
31 Oct - 04 Nov	Air Europa
27 Oct - 19 Nov	Air Europa
16 Oct - 08 Nov	Wizz Air UK
27 Oct - 18 Nov	Air Europa
16 Oct - 27 Oct	Air Europa
04 Oct - 12 Oct	Vueling Airlines

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 935€

Return flights