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

Return flights

11 Dec - 11 Jan	Aerolineas Argentinas
12 Dec - 10 Jan	Aerolineas Argentinas
16 Dec - 07 Jan	Flybondi
14 Dec - 28 Dec	Aerolineas Argentinas
23 Dec - 02 Jan	Aerolineas Argentinas
25 Dec - 10 Jan	Aerolineas Argentinas
20 Dec - 06 Jan	GOL Linhas Aéreas

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 1020€

Return flights