Cheapest return flights from Lisbon to Buenos Aires in December from 1143€

AirHint found the following cheapest return flights from Lisbon (LIS) to Buenos Aires (AEP) in December 2025 (see full year).

Return flights

28 Dec - 27 Jan LATAM Airlines Group
28 Dec - 24 Jan LATAM Airlines Group
25 Dec - 31 Jan LATAM Airlines Group
22 Dec - 23 Jan Wizz Air Malta
31 Dec - 19 Jan LATAM Airlines Group
28 Dec - 18 Jan Air Europa
23 Dec - 26 Jan easyJet
27 Dec - 16 Jan LATAM Airlines Group
30 Dec - 17 Jan TAP
24 Dec - 31 Dec Air France
22 Dec - 22 Jan Ryanair
24 Dec - 30 Dec Air France
23 Dec - 30 Dec KLM
28 Dec - 30 Dec Air Europa
23 Dec - 27 Dec LATAM Airlines Group

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

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