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

Return flights

21 Jan - 18 Feb	Turkish Airlines
05 Jan - 11 Feb	Air France
25 Jan - 08 Feb	United
27 Jan - 16 Feb	United
26 Jan - 10 Feb	United
27 Jan - 10 Feb	United
27 Jan - 03 Feb	United
26 Jan - 09 Feb	United
20 Jan - 10 Feb	Ryanair
20 Jan - 24 Feb	Ryanair
20 Jan - 31 Jan	Ryanair
22 Jan - 29 Jan	United
21 Jan - 29 Jan	United
20 Jan - 27 Jan	Ryanair
09 Jan - 24 Jan	Ryanair
17 Jan - 31 Jan	Ryanair
11 Jan - 22 Jan	Ryanair
18 Jan - 31 Jan	Ryanair
10 Jan - 27 Jan	Ryanair
18 Jan - 28 Jan	Ryanair

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 $976

Return flights