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

Return flights

20 Apr - 28 Apr	Avianca
15 Apr - 28 Apr	Avianca
08 Apr - 23 Apr	Avianca
15 Apr - 23 Apr	Avianca
07 Apr - 21 Apr	Avianca
06 Apr - 28 May	Avianca
08 Apr - 28 May	Avianca
13 Apr - 27 Apr	Turkish Airlines
14 Apr - 29 Apr	Turkish Airlines
24 Apr - 10 May	Turkish Airlines
24 Apr - 03 May	Turkish Airlines
15 Apr - 20 Apr	Turkish Airlines
20 Apr - 25 Apr	Turkish Airlines
30 Apr - 08 May	Air Europa
30 Apr - 10 May	Turkish Airlines
28 Apr - 07 May	Air Canada
29 Apr - 13 May	Air Canada
26 Apr - 10 May	Avianca
07 Apr - 14 Apr	Avianca
29 Apr - 12 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 803€

Return flights