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

Return flights

01 Dec - 06 Dec	Wizz Air Malta
07 Dec - 16 Dec	Turkish Airlines
01 Dec - 10 Dec	Turkish Airlines
07 Dec - 21 Dec	Turkish Airlines
02 Dec - 16 Dec	Turkish Airlines
03 Dec - 10 Dec	Turkish Airlines
03 Dec - 11 Dec	Turkish Airlines
07 Dec - 20 Dec	Turkish Airlines
03 Dec - 20 Dec	Turkish Airlines
03 Dec - 19 Dec	Turkish Airlines
16 Dec - 01 Jan	Air Canada
10 Dec - 06 Jan	Wizz Air Malta
11 Dec - 06 Jan	Ryanair
26 Dec - 05 Jan	Wizz Air Malta
10 Dec - 05 Jan	Wizz Air Malta
17 Dec - 06 Jan	Wizz Air UK
22 Dec - 05 Jan	Wizz Air Malta
18 Dec - 06 Jan	Wizz Air Malta
10 Dec - 02 Jan	Wizz Air Malta
10 Dec - 03 Jan	Wizz Air Malta

Also check the deals for one-way flights from London to Buenos Aires 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 London to Buenos Aires in December from 832€

Return flights