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

Return flights

20 Jan - 25 Feb	Air Canada
16 Jan - 02 Feb	Air Canada
20 Jan - 04 Feb	Air Canada
05 Jan - 24 Feb	British Airways
20 Jan - 30 Jan	Air Canada
16 Jan - 01 Feb	Air Canada
22 Jan - 08 Feb	Air Canada
13 Jan - 26 Jan	Air Canada
13 Jan - 01 Feb	Air Canada
16 Jan - 30 Jan	Air Canada
12 Jan - 23 Feb	British Airways
12 Jan - 24 Feb	British Airways
12 Jan - 25 Feb	British Airways
15 Jan - 24 Jan	Air Canada
16 Jan - 25 Jan	Air Canada
23 Jan - 30 Jan	Delta
09 Jan - 19 Jan	Delta
09 Jan - 30 Jan	Delta
15 Jan - 29 Jan	Delta
10 Jan - 24 Jan	Delta

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 $1042

Return flights