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

Return flights

01 Oct - 01 Nov	Avianca
01 Oct - 20 Oct	Avianca
06 Oct - 20 Oct	Avianca
01 Oct - 18 Oct	Avianca
01 Oct - 30 Nov	Avianca
01 Oct - 13 Oct	Avianca
01 Oct - 14 Oct	Avianca
01 Oct - 12 Oct	Avianca
01 Oct - 31 Oct	Avianca
06 Oct - 18 Oct	Avianca
01 Oct - 15 Oct	Avianca
27 Oct - 04 Nov	Avianca
06 Oct - 16 Oct	Avianca
20 Oct - 03 Nov	Lufthansa
28 Oct - 12 Nov	Lufthansa
28 Oct - 04 Nov	Lufthansa
26 Oct - 03 Nov	Lufthansa
31 Oct - 17 Nov	United
31 Oct - 07 Nov	United
24 Oct - 09 Nov	Air Canada

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 842€

Return flights