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

Return flights

20 Jan - 04 Feb	Lufthansa
13 Jan - 28 Jan	SWISS
05 Jan - 26 Jan	Lufthansa
20 Jan - 15 Feb	Lufthansa
22 Jan - 12 Feb	ITA Airways
29 Jan - 15 Feb	Iberia
11 Jan - 18 Jan	Delta
11 Jan - 25 Jan	Delta
18 Jan - 25 Jan	Delta
12 Jan - 20 Jan	Delta
21 Jan - 05 Feb	Delta
18 Jan - 01 Feb	Delta
24 Jan - 07 Feb	Delta
22 Jan - 28 Feb	Delta
20 Jan - 14 Feb	Delta
19 Jan - 14 Feb	Delta
11 Jan - 28 Jan	Delta
17 Jan - 31 Jan	Delta
05 Jan - 31 Jan	Lufthansa
08 Jan - 21 Jan	Lufthansa

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 1044€

Return flights