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

Return flights

12 Jan - 26 Jan	Delta
13 Jan - 31 Jan	SWISS
14 Jan - 27 Jan	ITA Airways
06 Jan - 07 Feb	SWISS
12 Jan - 09 Feb	KLM
11 Jan - 11 Feb	KLM
22 Jan - 31 Jan	ITA Airways
22 Jan - 11 Feb	KLM
11 Jan - 08 Feb	KLM
02 Jan - 17 Jan	SWISS
24 Jan - 31 Jan	Delta
28 Jan - 11 Feb	KLM
09 Jan - 26 Jan	KLM
09 Jan - 11 Jan	Delta
18 Jan - 25 Jan	KLM
18 Jan - 30 Jan	ITA Airways
14 Jan - 02 Feb	ITA Airways
26 Jan - 06 Feb	ITA Airways
05 Jan - 09 Feb	ITA Airways
04 Jan - 09 Feb	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 $1385

Return flights