AirHint found the following cheapest return flights from Buenos Aires (EZE) to London (LHR) in December 2025 (see full year).

Return flights

08 Dec - 15 Jan	Air Canada
09 Dec - 27 Dec	LATAM Airlines Group
02 Dec - 30 Dec	Iberia
24 Dec - 13 Jan	Avianca
23 Dec - 13 Jan	Avianca
12 Dec - 04 Jan	Iberia
03 Dec - 14 Jan	LATAM Airlines Group
01 Dec - 01 Jan	Air Canada
16 Dec - 30 Dec	Avianca
02 Dec - 05 Jan	Iberia For Level
10 Dec - 07 Jan	Iberia
09 Dec - 25 Dec	Iberia For Level
29 Dec - 18 Jan	KLM
17 Dec - 15 Jan	Finnair
09 Dec - 26 Dec	Iberia For Level
06 Dec - 26 Dec	Iberia For Level
03 Dec - 15 Dec	Iberia For Level
03 Dec - 13 Dec	Iberia For Level
01 Dec - 07 Dec	Air Canada
12 Dec - 28 Dec	Air France

Also check the deals for one-way flights from Buenos Aires to London in December.

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 December from 1049€

Return flights