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

Return flights

12 Dec - 15 Dec	Ryanair
12 Dec - 14 Dec	Ryanair
04 Dec - 10 Dec	Ryanair
03 Dec - 05 Dec	Ryanair
04 Dec - 12 Dec	Ryanair
06 Dec - 15 Dec	Aer Lingus
18 Dec - 09 Jan	Ryanair
01 Dec - 07 Dec	Ryanair
06 Dec - 14 Dec	Aer Lingus
09 Dec - 11 Dec	Ryanair
01 Dec - 08 Dec	Ryanair
21 Dec - 04 Jan	Ryanair
19 Dec - 05 Jan	Ryanair
29 Dec - 05 Jan	Ryanair
23 Dec - 01 Jan	Ryanair
24 Dec - 01 Jan	Ryanair
30 Dec - 06 Jan	Ryanair
28 Dec - 06 Jan	Ryanair
28 Dec - 03 Jan	Ryanair
26 Dec - 03 Jan	Ryanair

Also check the deals for one-way flights from Lisbon to Zagreb 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 Zagreb

Cheap car rent in Zagreb

Cheapest return flights from Lisbon to Zagreb in December from $124

Return flights