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

Return flights

29 Oct - 19 Nov	Wizz Air UK
09 Oct - 17 Oct	Turkish Airlines
30 Oct - 20 Nov	Turkish Airlines
09 Oct - 20 Oct	Turkish Airlines
10 Oct - 20 Oct	Turkish Airlines
28 Oct - 17 Nov	Wizz Air UK
02 Oct - 18 Oct	Turkish Airlines
09 Oct - 11 Oct	Turkish Airlines
10 Oct - 17 Oct	Turkish Airlines
30 Oct - 24 Nov	Turkish Airlines
14 Oct - 16 Oct	Wizz Air UK
31 Oct - 14 Nov	Wizz Air UK
29 Oct - 14 Nov	Wizz Air UK
07 Oct - 18 Oct	Turkish Airlines
09 Oct - 24 Oct	Air Canada
06 Oct - 19 Oct	Ryanair
22 Oct - 17 Nov	Wizz Air UK
23 Oct - 06 Nov	LATAM Airlines Group
30 Oct - 07 Nov	LATAM Airlines Group
22 Oct - 01 Nov	Air Europa

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 961€

Return flights