AirHint found the following cheapest return flights from London (STN) to Buenos Aires (AEP) in January 2026 (see full year).

Return flights

20 Jan - 25 Feb	Ryanair
15 Jan - 24 Feb	Ryanair
16 Jan - 03 Feb	Ryanair
23 Jan - 03 Feb	Ryanair
17 Jan - 31 Jan	Ryanair
31 Jan - 15 Feb	Ryanair
14 Jan - 29 Jan	Ryanair
27 Jan - 10 Feb	Ryanair
16 Jan - 30 Jan	Ryanair
12 Jan - 25 Jan	Ryanair
14 Jan - 11 Feb	Ryanair
29 Jan - 10 Feb	Ryanair
18 Jan - 30 Jan	Ryanair
12 Jan - 22 Jan	Ryanair
19 Jan - 02 Feb	Ryanair
31 Jan - 28 Feb	Ryanair
08 Jan - 31 Jan	Ryanair
05 Jan - 26 Jan	Ryanair
09 Jan - 30 Jan	Ryanair
10 Jan - 23 Jan	Ryanair

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

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 January from 940€

Return flights