Cheapest return LON–AEP flights, December

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

Return flights

01 Dec - 12 Dec Ryanair
03 Dec - 13 Dec British Airways
30 Dec - 21 Jan British Airways
06 Dec - 12 Jan Air Canada
10 Dec - 24 Dec TAP
29 Dec - 18 Jan LATAM Airlines Group
03 Dec - 18 Dec Ryanair
14 Dec - 24 Dec LATAM Airlines Group
08 Dec - 28 Dec Ryanair
31 Dec - 15 Jan LATAM Airlines Group
05 Dec - 31 Dec Ryanair
27 Dec - 17 Jan LATAM Airlines Group
26 Dec - 17 Jan LATAM Airlines Group
29 Dec - 13 Jan LATAM Airlines Group
27 Dec - 15 Jan LATAM Airlines Group
13 Dec - 15 Jan Vueling Airlines
21 Dec - 18 Jan Iberia Express

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

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