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

Return flights

03 Dec - 13 Dec	Wizz Air Malta
06 Dec - 13 Dec	Wizz Air Malta
04 Dec - 10 Dec	easyJet
03 Dec - 10 Dec	Wizz Air Malta
01 Dec - 07 Dec	Wizz Air Malta
30 Dec - 22 Jan	Wizz Air Malta
01 Dec - 10 Dec	Wizz Air Malta
04 Dec - 07 Dec	easyJet
05 Dec - 12 Dec	easyJet
30 Dec - 31 Jan	Wizz Air Malta
01 Dec - 18 Dec	Wizz Air Malta
01 Dec - 04 Dec	Wizz Air Malta
07 Dec - 22 Jan	easyJet
10 Dec - 19 Jan	easyJet
30 Dec - 17 Jan	Wizz Air Malta
29 Dec - 22 Jan	easyJet
31 Dec - 17 Jan	Wizz Air Malta
26 Dec - 13 Jan	Ryanair
28 Dec - 27 Jan	easyJet
14 Dec - 13 Jan	Ryanair

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 1057€

Return flights