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

Return flights

12 May - 01 Jun	Avianca
07 May - 14 May	Avianca
07 May - 18 May	Avianca
06 May - 19 May	JetSmart
31 May - 23 Jun	LATAM Airlines Group
14 May - 27 May	JetSmart
07 May - 17 May	Avianca
26 May - 08 Jun	LATAM Airlines Group
21 May - 04 Jun	LATAM Airlines Group
24 May - 07 Jun	Aerolíneas Argentinas
06 May - 21 May	JetSmart
26 May - 10 Jun	Avianca
07 May - 21 May	JetSmart
20 May - 09 Jun	Avianca
18 May - 08 Jun	Avianca
08 May - 27 May	JetSmart
05 May - 27 May	Aerolíneas Argentinas
14 May - 31 May	Avianca
31 May - 14 Jun	GOL Linhas Aéreas
08 May - 09 Jun	Aerolíneas Argentinas

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 951€

Return flights