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

Return flights

29 Jan - 16 Feb	Air Canada
27 Jan - 04 Feb	Air Canada
11 Jan - 19 Jan	Air Canada
11 Jan - 21 Jan	Air Canada
28 Jan - 25 Feb	Avianca
13 Jan - 24 Feb	Avianca
12 Jan - 19 Jan	Air Canada
12 Jan - 26 Jan	Air Canada
26 Jan - 10 Feb	Iberia
06 Jan - 03 Feb	Iberia
05 Jan - 26 Jan	Iberia
27 Jan - 10 Feb	Iberia
22 Jan - 01 Feb	Air Canada
20 Jan - 27 Jan	Iberia
27 Jan - 03 Feb	Iberia
16 Jan - 01 Feb	Air Canada
18 Jan - 22 Jan	Finnair
05 Jan - 18 Jan	Iberia For Level
05 Jan - 12 Jan	Iberia For Level
10 Jan - 24 Jan	Iberia For Level

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 806€

Return flights