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

Return flights

27 Oct - 10 Nov	Ryanair
26 Oct - 10 Nov	Ryanair
26 Oct - 09 Nov	Ryanair
26 Oct - 18 Nov	Ryanair
26 Oct - 08 Nov	Ryanair
26 Oct - 11 Nov	Ryanair
26 Oct - 07 Nov	Ryanair
22 Oct - 16 Nov	Ryanair
28 Oct - 11 Nov	Ryanair
22 Oct - 08 Nov	Ryanair
27 Oct - 31 Oct	Ryanair
26 Oct - 31 Oct	Ryanair
25 Oct - 31 Oct	Ryanair
20 Oct - 26 Oct	Ryanair
16 Oct - 19 Oct	Ryanair
16 Oct - 23 Oct	Ryanair
20 Oct - 25 Oct	Ryanair
14 Oct - 28 Oct	Ryanair
23 Oct - 31 Oct	Ryanair
17 Oct - 24 Oct	Jet2

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 952€

Return flights