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

Return flights

02 Dec - 12 Dec	Iberia For Level
17 Dec - 29 Dec	Iberia For Level
17 Dec - 30 Dec	Iberia For Level
10 Dec - 27 Dec	Iberia
18 Dec - 05 Jan	Iberia For Level
08 Dec - 25 Dec	Iberia For Level
05 Dec - 25 Dec	Iberia For Level
04 Dec - 14 Dec	Iberia For Level
11 Dec - 27 Dec	Iberia
10 Dec - 20 Dec	Iberia For Level
12 Dec - 01 Jan	Iberia
14 Dec - 02 Jan	Iberia
11 Dec - 25 Dec	Iberia
22 Dec - 10 Jan	Iberia For Level
24 Dec - 09 Jan	Iberia
29 Dec - 24 Jan	Iberia For Level
30 Dec - 15 Jan	Iberia For Level
30 Dec - 12 Jan	Iberia
21 Dec - 06 Jan	Iberia
31 Dec - 15 Jan	Iberia

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

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 Buenos Aires to Lisbon in December from 946€

Return flights