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

Return flights

13 Apr - 27 Apr	Avianca
15 Apr - 27 Apr	Avianca
16 Apr - 27 Apr	Avianca
20 Apr - 04 May	Avianca
16 Apr - 30 Apr	Avianca
03 Apr - 18 Apr	Avianca
22 Apr - 11 May	Avianca
13 Apr - 30 Apr	Avianca
28 Apr - 05 May	Avianca
30 Apr - 14 May	Avianca
16 Apr - 01 May	Avianca
02 Apr - 18 Apr	Avianca
28 Apr - 10 May	Avianca
23 Apr - 10 May	Avianca
13 Apr - 01 May	Avianca
15 Apr - 01 May	Avianca
02 Apr - 22 Apr	Avianca
21 Apr - 09 May	Avianca
02 Apr - 17 Apr	Avianca
03 Apr - 26 Apr	Avianca

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 $943

Return flights