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

Return flights

20 Jan - 10 Feb	ITA Airways
21 Jan - 03 Feb	ITA Airways
26 Jan - 11 Feb	Lufthansa
26 Jan - 15 Feb	ITA Airways
26 Jan - 09 Feb	ITA Airways
16 Jan - 04 Feb	ITA Airways
23 Jan - 28 Jan	ITA Airways
20 Jan - 27 Jan	ITA Airways
21 Jan - 04 Feb	ITA Airways
23 Jan - 27 Jan	ITA Airways
23 Jan - 29 Jan	ITA Airways
24 Jan - 10 Feb	ITA Airways
18 Jan - 27 Jan	ITA Airways
26 Jan - 16 Feb	ITA Airways
24 Jan - 31 Jan	ITA Airways
26 Jan - 17 Feb	Air Dolomiti
19 Jan - 26 Jan	ITA Airways
21 Jan - 27 Jan	Lufthansa
18 Jan - 31 Jan	ITA Airways
22 Jan - 26 Jan	ITA Airways

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

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 January from $1316

Return flights