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

Return flights

21 Jan - 03 Feb	Ryanair
21 Jan - 23 Feb	Ryanair
21 Jan - 01 Feb	Ryanair
21 Jan - 28 Jan	Ryanair
24 Jan - 11 Feb	Vueling Airlines
21 Jan - 18 Feb	Ryanair
18 Jan - 02 Feb	Wizz Air UK
20 Jan - 10 Feb	easyJet
20 Jan - 24 Feb	LATAM Airlines Group
18 Jan - 27 Jan	Wizz Air UK
16 Jan - 07 Feb	Air Europa
19 Jan - 11 Feb	easyJet
09 Jan - 21 Jan	Iberia Express
01 Jan - 21 Jan	easyJet
21 Jan - 26 Jan	TAP
03 Jan - 23 Jan	Ryanair
07 Jan - 22 Jan	easyJet
08 Jan - 26 Jan	easyJet
17 Jan - 31 Jan	TAP
05 Jan - 26 Jan	easyJet

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 917€

Return flights