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

Return flights

01 Dec - 15 Jan	Iberia For Level
03 Dec - 13 Dec	Iberia For Level
16 Dec - 17 Jan	Iberia For Level
01 Dec - 11 Dec	Iberia For Level
15 Dec - 03 Jan	Iberia For Level
09 Dec - 26 Dec	Iberia For Level
15 Dec - 27 Dec	Iberia
13 Dec - 30 Dec	Iberia For Level
15 Dec - 02 Jan	Iberia
18 Dec - 30 Dec	Iberia For Level
17 Dec - 31 Dec	Iberia For Level
08 Dec - 26 Dec	Iberia
10 Dec - 26 Dec	Iberia
11 Dec - 22 Dec	Iberia For Level
23 Dec - 12 Jan	Iberia For Level
22 Dec - 20 Jan	Iberia For Level
19 Dec - 12 Jan	Iberia For Level
22 Dec - 22 Jan	Iberia For Level
21 Dec - 21 Jan	LATAM Airlines Group
24 Dec - 20 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.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon

Cheapest return flights from Buenos Aires to Lisbon in December from $1039

Return flights