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

Return flights

31 Jan - 10 Feb	Ryanair
31 Jan - 15 Feb	Ryanair
21 Jan - 08 Feb	Ryanair
26 Jan - 09 Feb	Ryanair
21 Jan - 28 Jan	Ryanair
20 Jan - 03 Feb	Ryanair
18 Jan - 25 Jan	Ryanair
21 Jan - 26 Feb	Ryanair
27 Jan - 10 Feb	Ryanair
21 Jan - 22 Feb	Ryanair
18 Jan - 29 Jan	Ryanair
20 Jan - 04 Feb	Ryanair
15 Jan - 29 Jan	Ryanair
17 Jan - 29 Jan	Ryanair
17 Jan - 07 Feb	Ryanair
15 Jan - 26 Jan	Ryanair
21 Jan - 30 Jan	Ryanair
05 Jan - 25 Jan	Ryanair
16 Jan - 23 Jan	Ryanair
05 Jan - 28 Jan	Jet2

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 934€

Return flights