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

Return flights

15 Apr - 22 Apr	easyJet
22 Apr - 11 May	Vueling Airlines
24 Apr - 11 May	Vueling Airlines
24 Apr - 10 May	Vueling Airlines
16 Apr - 30 Apr	Vueling Airlines
02 Apr - 08 Apr	Vueling Airlines
30 Apr - 03 May	Vueling Airlines
03 Apr - 25 Apr	Vueling Airlines
03 Apr - 12 Apr	Vueling Airlines
05 Apr - 18 Apr	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 $1280

Return flights