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

Return flights

14 Apr - 21 Apr	easyJet
17 Apr - 06 May	Air Europa
21 Apr - 28 Apr	Air Europa
22 Apr - 27 Apr	Air Europa
19 Apr - 30 Apr	Air Europa
26 Apr - 30 Apr	Air Europa
13 Apr - 20 Apr	LATAM Airlines Group
09 Apr - 27 Apr	LATAM Airlines Group
23 Apr - 10 May	Air Europa
02 Apr - 17 Apr	TAP
02 Apr - 24 Apr	TAP
10 Apr - 27 Apr	LATAM Airlines Group
15 Apr - 06 May	Vueling Airlines

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 962€

Return flights