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

Return flights

31 Oct - 16 Nov	easyJet
31 Oct - 22 Nov	easyJet
08 Oct - 21 Oct	easyJet
24 Oct - 08 Nov	easyJet
06 Oct - 14 Oct	easyJet
07 Oct - 21 Oct	Ryanair
20 Oct - 27 Oct	Ryanair
21 Oct - 05 Nov	Ryanair
20 Oct - 02 Nov	Ryanair
28 Oct - 01 Nov	easyJet
16 Oct - 22 Oct	Ryanair
15 Oct - 27 Oct	Ryanair
16 Oct - 02 Nov	Ryanair
28 Oct - 19 Nov	easyJet
08 Oct - 13 Oct	Ryanair
31 Oct - 07 Nov	easyJet
31 Oct - 15 Nov	easyJet
07 Oct - 28 Oct	Ryanair
10 Oct - 18 Oct	easyJet
02 Oct - 23 Oct	easyJet

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 1007€

Return flights