Cheapest return flights from London to Buenos Aires in April from $1202

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

Return flights

14 Apr - 28 Apr Iberia
17 Apr - 02 May LATAM Airlines Group
19 Apr - 29 Apr LATAM Airlines Group
04 Apr - 18 Apr LATAM Airlines Group
06 Apr - 17 Apr LATAM Airlines Group
10 Apr - 24 Apr Air Europa
03 Apr - 26 Apr Air Europa
15 Apr - 06 May British Airways
03 Apr - 19 Apr Iberia
26 Apr - 02 May British Airways
18 Apr - 10 May United

Also check the deals for one-way flights from London to Buenos Aires in April.

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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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