Cheapest return flights from London to Buenos Aires in December from 1043€

Best time to book flights for London (LGW) to Buenos Aires (AEP) flights at AirHint

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

Return flights

31 Dec - 20 Jan LATAM Airlines Group
31 Dec - 21 Jan LATAM Airlines Group
02 Dec - 10 Dec Iberia
05 Dec - 11 Dec LATAM Airlines Group
01 Dec - 07 Dec LATAM Airlines Group
24 Dec - 30 Jan Air Europa
06 Dec - 28 Dec LATAM Airlines Group
28 Dec - 25 Jan Air Europa
11 Dec - 30 Dec TAP
08 Dec - 25 Dec Air Europa
11 Dec - 31 Dec TAP
03 Dec - 21 Dec Air Europa
24 Dec - 17 Jan Iberia
10 Dec - 17 Dec LATAM Airlines Group
09 Dec - 16 Jan Air Europa
07 Dec - 12 Jan Air Europa
24 Dec - 24 Jan LATAM Airlines Group
27 Dec - 22 Jan LATAM Airlines Group
14 Dec - 09 Jan Air Europa
11 Dec - 18 Dec TAP

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

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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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