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

Return flights

20 Jan - 15 Feb	Air France
23 Jan - 10 Feb	Air France
22 Jan - 16 Feb	Air France
21 Jan - 18 Feb	Air France
21 Jan - 16 Feb	Air France
24 Jan - 29 Jan	Lufthansa
26 Jan - 11 Feb	Lufthansa
27 Jan - 11 Feb	Lufthansa
30 Jan - 13 Feb	Lufthansa
24 Jan - 10 Feb	Lufthansa
26 Jan - 23 Feb	Lufthansa
23 Jan - 29 Jan	Lufthansa
20 Jan - 27 Jan	Finnair
21 Jan - 29 Jan	Finnair
18 Jan - 27 Jan	Finnair
22 Jan - 28 Jan	Finnair
22 Jan - 29 Jan	Finnair
21 Jan - 28 Jan	Finnair
26 Jan - 30 Jan	American Airlines
21 Jan - 30 Jan	American Airlines

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 871€

Return flights