Cheapest return flights from London to Buenos Aires in October from $1148

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

Return flights

27 Oct - 10 Nov Air Canada
29 Oct - 12 Nov Air Canada
20 Oct - 03 Nov Air Canada
09 Oct - 23 Oct LATAM Airlines Group
04 Oct - 11 Oct LATAM Airlines Group
07 Oct - 12 Oct LATAM Airlines Group
01 Oct - 10 Oct LATAM Airlines Group
04 Oct - 17 Oct LATAM Airlines Group
31 Oct - 08 Nov LATAM Airlines Group
29 Oct - 16 Nov LATAM Airlines Group
01 Oct - 15 Oct LATAM Airlines Group
01 Oct - 23 Oct LATAM Airlines Group
15 Oct - 25 Oct LATAM Airlines Group
30 Oct - 17 Nov LATAM Airlines Group
30 Oct - 16 Nov LATAM Airlines Group
08 Oct - 19 Oct Air Canada
09 Oct - 16 Oct Air Canada
24 Oct - 09 Nov LATAM Airlines Group
23 Oct - 01 Nov LATAM Airlines Group
31 Oct - 03 Nov British Airways

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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