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

Return flights

15 Dec - 13 Jan	Flybondi
15 Dec - 10 Jan	Flybondi
16 Dec - 10 Jan	Flybondi
01 Dec - 29 Dec	LATAM Airlines Group
11 Dec - 23 Jan	LATAM Airlines Group
15 Dec - 12 Jan	Aerolineas Argentinas
13 Dec - 23 Jan	Aerolineas Argentinas
05 Dec - 25 Dec	Avianca
17 Dec - 03 Jan	Avianca
18 Dec - 29 Dec	Avianca
02 Dec - 02 Jan	Avianca
11 Dec - 31 Dec	Avianca
28 Dec - 18 Jan	Aerolineas Argentinas
23 Dec - 03 Jan	Avianca
15 Dec - 28 Dec	Avianca
02 Dec - 15 Dec	Avianca
03 Dec - 15 Dec	Avianca
14 Dec - 30 Dec	Avianca
04 Dec - 15 Dec	Avianca
05 Dec - 15 Dec	Avianca

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 1029€

Return flights