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

Return flights

30 Oct - 15 Nov	Ryanair
25 Oct - 31 Oct	Ryanair
10 Oct - 22 Oct	Wizz Air
29 Oct - 15 Nov	easyJet
10 Oct - 20 Oct	Wizz Air
26 Oct - 11 Nov	Ryanair
21 Oct - 02 Nov	Ryanair
09 Oct - 25 Oct	easyJet
21 Oct - 19 Nov	Ryanair
25 Oct - 15 Nov	Ryanair
30 Oct - 13 Nov	Wizz Air Malta
21 Oct - 27 Oct	easyJet
29 Oct - 12 Nov	easyJet
17 Oct - 24 Oct	easyJet
19 Oct - 24 Oct	easyJet
04 Oct - 14 Oct	Ryanair
16 Oct - 03 Nov	Ryanair
17 Oct - 21 Oct	Jet2
09 Oct - 20 Oct	easyJet
31 Oct - 10 Nov	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 1024€

Return flights