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

Return flights

18 May - 01 Jun	Wizz Air UK
07 May - 11 May	Wizz Air UK
04 May - 11 May	Wizz Air UK
13 May - 20 May	Wizz Air UK
26 May - 09 Jun	Wizz Air UK
14 May - 17 May	Wizz Air UK
14 May - 28 May	Wizz Air UK
04 May - 16 May	Wizz Air UK
09 May - 16 May	Wizz Air UK
02 May - 20 May	Ryanair
25 May - 05 Jun	Wizz Air UK
01 May - 22 May	easyJet
08 May - 10 May	easyJet
24 May - 03 Jun	easyJet

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

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 May from 950€

Return flights