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

Return flights

07 Dec - 21 Dec	Turkish Airlines
03 Dec - 15 Dec	Turkish Airlines
01 Dec - 09 Dec	Turkish Airlines
08 Dec - 15 Dec	Turkish Airlines
03 Dec - 20 Dec	Turkish Airlines
07 Dec - 13 Dec	Turkish Airlines
04 Dec - 20 Dec	Turkish Airlines
04 Dec - 18 Dec	Turkish Airlines
05 Dec - 21 Dec	Turkish Airlines
05 Dec - 12 Dec	Air France
31 Dec - 06 Jan	Air France
27 Dec - 10 Jan	KLM
27 Dec - 04 Jan	Turkish Airlines
27 Dec - 09 Jan	KLM
16 Dec - 01 Jan	Turkish Airlines
20 Dec - 10 Jan	KLM
19 Dec - 03 Jan	Turkish Airlines
18 Dec - 03 Jan	Turkish Airlines
16 Dec - 06 Jan	KLM
25 Dec - 09 Jan	KLM

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 885€

Return flights