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

Return flights

10 Apr - 14 Apr	ITA Airways
01 Apr - 18 Apr	ITA Airways
06 Apr - 15 Apr	ITA Airways
07 Apr - 16 Apr	Lufthansa
08 Apr - 23 Apr	KLM
06 Apr - 13 Apr	KLM
13 Apr - 22 Apr	ITA Airways
14 Apr - 29 Apr	KLM
14 Apr - 28 Apr	KLM
29 Apr - 20 May	KLM
06 Apr - 16 Apr	KLM
20 Apr - 07 May	KLM
30 Apr - 07 May	KLM
23 Apr - 02 May	ITA Airways
27 Apr - 06 May	ITA Airways
29 Apr - 16 May	ITA Airways
30 Apr - 11 May	KLM
25 Apr - 04 May	ITA Airways

Also check the deals for one-way flights from London to Buenos Aires 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 London to Buenos Aires in April from $1273

Return flights