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

Return flights

27 Jan - 28 Feb	Aerolíneas Argentinas
27 Jan - 24 Feb	Aerolíneas Argentinas
13 Jan - 21 Jan	JetSmart
31 Jan - 28 Feb	JetSmart
26 Jan - 19 Feb	Aerolíneas Argentinas
29 Jan - 16 Feb	Aerolíneas Argentinas
25 Jan - 15 Feb	Aerolíneas Argentinas
21 Jan - 26 Jan	JetSmart
22 Jan - 03 Feb	LATAM Airlines Group
24 Jan - 06 Feb	LATAM Airlines Group
07 Jan - 21 Feb	JetSmart
20 Jan - 09 Feb	JetSmart
09 Jan - 19 Jan	Aerolíneas Argentinas
09 Jan - 16 Jan	Aerolíneas Argentinas
21 Jan - 28 Jan	Aerolíneas Argentinas
08 Jan - 28 Jan	JetSmart
24 Jan - 28 Jan	Aerolíneas Argentinas
01 Jan - 31 Jan	Avianca
19 Jan - 28 Jan	Aerolíneas Argentinas
02 Jan - 19 Jan	LATAM Airlines Group

Also check the deals for one-way flights from Buenos Aires to London 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 Buenos Aires to London in January from $1220

Return flights