Cheapest return flights from London to Buenos Aires in December from 1045€

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

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

Return flights

03 Dec - 13 Dec Ryanair
01 Dec - 08 Dec Ryanair
12 Dec - 23 Jan Ryanair
13 Dec - 23 Jan Ryanair
04 Dec - 18 Dec Ryanair
01 Dec - 10 Dec Ryanair
24 Dec - 19 Jan Ryanair
02 Dec - 09 Dec Ryanair
01 Dec - 15 Dec Ryanair
13 Dec - 21 Dec Ryanair
24 Dec - 16 Jan Ryanair
07 Dec - 11 Jan Ryanair
29 Dec - 12 Jan Ryanair
13 Dec - 27 Dec Ryanair
12 Dec - 27 Dec Ryanair
11 Dec - 08 Jan Ryanair
29 Dec - 14 Jan Ryanair
10 Dec - 10 Jan Ryanair
06 Dec - 03 Jan Ryanair
20 Dec - 28 Dec Ryanair

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

Skyscanner

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.

Book a cheap hotel in Buenos Aires

Cheap car rent in Buenos Aires