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

Return flights

23 May - 31 May	easyJet
18 May - 29 May	Wizz Air UK
04 May - 25 May	easyJet
05 May - 19 May	Wizz Air UK
07 May - 21 May	Wizz Air UK
07 May - 18 May	Wizz Air UK
29 May - 04 Jun	Wizz Air UK
19 May - 26 May	Wizz Air UK
04 May - 11 May	Wizz Air UK
03 May - 18 May	Wizz Air UK
19 May - 04 Jun	Wizz Air UK
05 May - 14 May	Wizz Air UK
16 May - 01 Jun	easyJet
01 May - 01 Jun	Wizz Air UK
16 May - 02 Jun	Wizz Air UK
17 May - 01 Jun	Wizz Air Malta
08 May - 08 Jun	Wizz Air Malta
25 May - 07 Jun	Wizz Air UK
28 May - 04 Jun	Wizz Air UK
02 May - 06 Jun	Wizz Air UK

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 859€

Return flights