Cheapest return flights from London to Buenos Aires in January from $1136

Best time to book flights for London (LON) to Buenos Aires (AEP) flights at AirHint

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

Return flights

19 Jan - 26 Jan LATAM Airlines Group
20 Jan - 28 Jan LATAM Airlines Group
09 Jan - 30 Jan LATAM Airlines Group
11 Jan - 28 Jan LATAM Airlines Group
08 Jan - 30 Jan LATAM Airlines Group
14 Jan - 04 Feb LATAM Airlines Group
16 Jan - 06 Feb LATAM Airlines Group
20 Jan - 12 Feb LATAM Airlines Group
14 Jan - 18 Feb LATAM Airlines Group
27 Jan - 16 Feb LATAM Airlines Group
26 Jan - 05 Feb LATAM Airlines Group
29 Jan - 19 Feb LATAM Airlines Group
29 Jan - 12 Feb LATAM Airlines Group
17 Jan - 31 Jan LATAM Airlines Group
18 Jan - 31 Jan LATAM Airlines Group
12 Jan - 31 Jan LATAM Airlines Group
08 Jan - 15 Jan LATAM Airlines Group
05 Jan - 15 Jan LATAM Airlines Group
10 Jan - 21 Feb LATAM Airlines Group
08 Jan - 05 Feb Air Canada

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

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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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