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

Return flights

20 Apr - 27 Apr	Avianca
20 Apr - 30 Apr	Avianca
24 Apr - 26 Apr	Avianca
16 Apr - 30 Apr	Avianca
18 Apr - 25 Apr	Avianca
16 Apr - 23 Apr	Avianca
14 Apr - 28 Apr	Avianca
07 Apr - 27 Apr	Avianca
30 Apr - 12 May	Avianca
18 Apr - 03 May	Avianca
24 Apr - 10 May	Avianca
14 Apr - 29 Apr	Avianca
25 Apr - 10 May	Avianca
26 Apr - 17 May	Avianca
24 Apr - 08 May	Avianca
18 Apr - 02 May	Avianca
09 Apr - 20 Apr	Avianca
30 Apr - 11 May	Avianca
29 Apr - 22 May	Avianca
23 Apr - 03 May	Turkish 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 808€

Return flights