AirHint found the following cheapest return flights from Lisbon (LIS) to Buenos Aires (EZE) in January 2026 (see full year).

Return flights

13 Jan - 04 Feb	Lufthansa
30 Jan - 23 Feb	Delta
20 Jan - 20 Feb	Delta
21 Jan - 28 Jan	LATAM Airlines Group
21 Jan - 16 Feb	LATAM Airlines Group
29 Jan - 24 Feb	LATAM Airlines Group
14 Jan - 22 Jan	Delta
12 Jan - 22 Jan	Delta
12 Jan - 19 Jan	Delta
13 Jan - 27 Jan	Delta
15 Jan - 24 Jan	Delta
19 Jan - 27 Jan	Delta
18 Jan - 24 Jan	Delta
17 Jan - 31 Jan	Delta
11 Jan - 18 Jan	Delta
25 Jan - 08 Feb	Delta
26 Jan - 07 Feb	Delta
28 Jan - 03 Feb	Delta
30 Jan - 28 Feb	Delta
31 Jan - 02 Feb	Delta

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

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 Lisbon to Buenos Aires in January from 822€

Return flights