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

Return flights

22 Jan - 12 Feb	Ryanair
27 Jan - 17 Feb	Ryanair
22 Jan - 03 Feb	Ryanair
22 Jan - 05 Feb	Ryanair
15 Jan - 29 Jan	Ryanair
20 Jan - 03 Feb	Ryanair
15 Jan - 26 Jan	Ryanair
14 Jan - 03 Feb	Ryanair
15 Jan - 31 Jan	Ryanair
29 Jan - 14 Feb	Ryanair
09 Jan - 10 Feb	Ryanair
22 Jan - 31 Jan	Ryanair
13 Jan - 03 Feb	Ryanair
25 Jan - 08 Feb	Ryanair
13 Jan - 27 Jan	Ryanair
06 Jan - 27 Jan	Ryanair
17 Jan - 26 Jan	Ryanair
07 Jan - 27 Jan	Ryanair
17 Jan - 31 Jan	Ryanair
09 Jan - 31 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 977€

Return flights