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

Return flights

30 Apr - 22 May	Aerolineas Argentinas
04 Apr - 25 Apr	Aerolineas Argentinas
03 Apr - 18 Apr	Aerolineas Argentinas
13 Apr - 28 Apr	Air Canada
23 Apr - 05 May	Air Canada
15 Apr - 03 May	Air Canada
11 Apr - 24 Apr	Air Canada
22 Apr - 06 May	Air Canada
02 Apr - 15 Apr	Air Canada
15 Apr - 29 Apr	Air Canada
30 Apr - 12 May	Air Canada
22 Apr - 04 May	GOL Linhas Aéreas
26 Apr - 08 May	GOL Linhas Aéreas
25 Apr - 09 May	GOL Linhas Aéreas
18 Apr - 07 May	GOL Linhas Aéreas
25 Apr - 14 May	GOL Linhas Aéreas
15 Apr - 30 Apr	SWISS
12 Apr - 24 Apr	GOL Linhas Aéreas
11 Apr - 27 Apr	GOL Linhas Aéreas
01 Apr - 19 Apr	GOL Linhas Aéreas

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

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 April from 969€

Return flights