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

Return flights

26 Jan - 09 Feb	LATAM Airlines Group
22 Jan - 07 Feb	Air Canada
28 Jan - 18 Feb	LATAM Airlines Group
28 Jan - 11 Feb	LATAM Airlines Group
12 Jan - 16 Feb	LATAM Airlines Group
16 Jan - 06 Feb	Air Canada
21 Jan - 18 Feb	LATAM Airlines Group
15 Jan - 30 Jan	Air Canada
18 Jan - 30 Jan	Air Canada
29 Jan - 17 Feb	LATAM Airlines Group
19 Jan - 03 Feb	LATAM Airlines Group
20 Jan - 03 Feb	LATAM Airlines Group
19 Jan - 25 Jan	LATAM Airlines Group
01 Jan - 31 Jan	Vueling Airlines
05 Jan - 26 Jan	Vueling Airlines
05 Jan - 31 Jan	Vueling Airlines
15 Jan - 31 Jan	Air Canada
01 Jan - 24 Jan	Vueling Airlines
10 Jan - 31 Jan	Vueling Airlines
08 Jan - 24 Jan	Vueling 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.

Book a cheap hotel in Buenos Aires

Cheap car rent in Buenos Aires

Cheapest return flights from London to Buenos Aires in January from $1189

Return flights