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

Return flights

14 Apr - 23 Apr	Avianca
28 Apr - 07 May	Avianca
15 Apr - 23 Apr	Turkish Airlines
18 Apr - 27 Apr	Turkish Airlines
24 Apr - 03 May	Turkish Airlines
15 Apr - 28 Apr	Turkish Airlines
18 Apr - 28 Apr	Turkish Airlines
20 Apr - 28 Apr	Turkish Airlines
30 Apr - 10 May	Turkish Airlines
25 Apr - 02 May	Avianca
24 Apr - 04 May	Turkish Airlines
23 Apr - 15 May	Turkish Airlines
23 Apr - 16 May	Turkish Airlines
30 Apr - 09 May	Turkish Airlines
14 Apr - 24 Apr	Ryanair
23 Apr - 17 May	Turkish Airlines
22 Apr - 17 May	Turkish Airlines
17 Apr - 21 Apr	Turkish Airlines
09 Apr - 25 Apr	easyJet
14 Apr - 28 Apr	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 $998

Return flights