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

Return flights

05 Apr - 22 Apr	easyJet
15 Apr - 28 Apr	Vueling Airlines
13 Apr - 21 Apr	Vueling Airlines
08 Apr - 23 Apr	Vueling Airlines
14 Apr - 29 Apr	easyJet
10 Apr - 27 Apr	easyJet
01 Apr - 18 Apr	Vueling Airlines
13 Apr - 27 Apr	Royal Air Maroc
02 Apr - 20 Apr	Vueling Airlines
22 Apr - 27 Apr	easyJet
24 Apr - 05 May	easyJet
29 Apr - 11 May	Vueling Airlines
24 Apr - 04 May	easyJet
24 Apr - 09 May	easyJet
25 Apr - 02 May	Vueling Airlines
15 Apr - 13 May	easyJet
20 Apr - 01 May	Vueling Airlines
30 Apr - 09 May	easyJet
26 Apr - 06 May	easyJet
26 Apr - 05 May	easyJet

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 $1125

Return flights