Cheapest return flights from London to Buenos Aires in October from $1645

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

Return flights

12 Oct - 26 Oct Iberia
16 Oct - 01 Nov Iberia
30 Oct - 15 Nov SWISS
30 Oct - 28 Nov SWISS
01 Oct - 31 Oct SWISS
27 Oct - 31 Oct SWISS
15 Oct - 31 Oct SWISS
20 Oct - 31 Oct SWISS
23 Oct - 01 Nov SWISS
02 Oct - 31 Oct SWISS
02 Oct - 17 Oct SWISS

Also check the deals for one-way flights from London to Buenos Aires in October.

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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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