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

Return flights

16 Jan - 31 Jan	Delta
17 Jan - 31 Jan	Delta
22 Jan - 31 Jan	Delta
10 Jan - 01 Feb	Delta
21 Jan - 15 Feb	Delta
26 Jan - 01 Feb	Delta
24 Jan - 14 Feb	Delta
23 Jan - 15 Feb	Delta
16 Jan - 01 Feb	Delta
20 Jan - 01 Feb	Delta
25 Jan - 07 Feb	Delta
20 Jan - 14 Feb	Delta
25 Jan - 15 Feb	Delta
19 Jan - 28 Jan	Lufthansa
09 Jan - 31 Jan	Delta
13 Jan - 22 Jan	Lufthansa
09 Jan - 18 Jan	Lufthansa
10 Jan - 17 Jan	Delta
09 Jan - 19 Jan	Air Dolomiti
13 Jan - 27 Jan	KLM

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 $1339

Return flights