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

Return flights

23 Jan - 10 Feb	Lufthansa
05 Jan - 24 Feb	Iberia
21 Jan - 18 Feb	Lufthansa
12 Jan - 11 Feb	Iberia
15 Jan - 28 Jan	Air Canada
14 Jan - 28 Jan	Iberia
16 Jan - 02 Feb	Air Canada
23 Jan - 06 Feb	Iberia
01 Jan - 29 Jan	Iberia
26 Jan - 09 Feb	Iberia
20 Jan - 10 Feb	Iberia
13 Jan - 13 Feb	Avianca
28 Jan - 08 Feb	Iberia
12 Jan - 26 Jan	Iberia
19 Jan - 26 Jan	Iberia
17 Jan - 26 Jan	Air Canada
15 Jan - 26 Jan	Air Canada
16 Jan - 23 Jan	Air Canada
19 Jan - 28 Jan	Air Canada
23 Jan - 31 Jan	Air Canada

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 835€

Return flights