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

Return flights

05 May - 19 May	Wizz Air UK
04 May - 25 May	Wizz Air UK
05 May - 15 May	Wizz Air UK
06 May - 18 May	Wizz Air UK
08 May - 24 May	easyJet
11 May - 20 May	Wizz Air UK
04 May - 17 May	Wizz Air UK
05 May - 14 May	Wizz Air UK
11 May - 21 May	Wizz Air UK
06 May - 13 May	easyJet
01 May - 01 Jun	easyJet
29 May - 08 Jun	Wizz Air UK
26 May - 08 Jun	easyJet
24 May - 21 Jun	easyJet
25 May - 08 Jun	Wizz Air UK
23 May - 06 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 $1037

Return flights