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

Return flights

14 Dec - 21 Dec	Ryanair
14 Dec - 18 Dec	Ryanair
06 Dec - 13 Dec	Ryanair
11 Dec - 11 Jan	Ryanair
10 Dec - 15 Dec	Ryanair
10 Dec - 13 Dec	Ryanair
10 Dec - 12 Dec	Ryanair
11 Dec - 09 Jan	Ryanair
12 Dec - 11 Jan	Ryanair
15 Dec - 19 Dec	Ryanair
11 Dec - 10 Jan	Ryanair
11 Dec - 12 Jan	Ryanair
12 Dec - 09 Jan	Ryanair
10 Dec - 09 Jan	Ryanair
12 Dec - 12 Jan	Ryanair
12 Dec - 10 Jan	Ryanair
04 Dec - 12 Dec	Ryanair
01 Dec - 06 Dec	Ryanair
04 Dec - 07 Dec	Ryanair
13 Dec - 10 Jan	Ryanair

Also check the deals for one-way flights from Zagreb 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 Zagreb to Lisbon in December from 114€

Return flights