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

Return flights

10 May - 17 May	Aerolineas Argentinas
20 May - 18 Jun	Aerolineas Argentinas
20 May - 29 Jun	LATAM Airlines Group
09 May - 30 May	LATAM Airlines Group
15 May - 31 May	Aerolineas Argentinas
18 May - 30 Jun	LATAM Airlines Group
07 May - 19 May	Air Canada
11 May - 20 May	Air Canada
13 May - 02 Jun	Air Canada
02 May - 13 May	Air Canada
14 May - 24 May	Air Canada
09 May - 24 May	Air Canada
20 May - 02 Jun	Air Canada
06 May - 19 May	Air Canada
06 May - 26 May	Air Canada
21 May - 01 Jun	GOL Linhas Aéreas
20 May - 01 Jun	GOL Linhas Aéreas
25 May - 07 Jun	Air Canada
25 May - 12 Jun	Air Canada
27 May - 06 Jun	GOL Linhas Aéreas

Also check the deals for one-way flights from Buenos Aires to London 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 Buenos Aires to London in May from 967€

Return flights