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

Return flights

04 Dec - 15 Dec	Pegasus Airlines
06 Dec - 11 Dec	Flynas
07 Dec - 10 Dec	Pegasus Airlines
02 Dec - 09 Dec	Pegasus Airlines
14 Dec - 18 Dec	Pegasus Airlines
12 Dec - 27 Dec	Aegean Airlines
12 Dec - 23 Dec	Aegean Airlines
02 Dec - 05 Dec	Pegasus Airlines
03 Dec - 05 Dec	Pegasus Airlines
10 Dec - 14 Dec	Lufthansa
22 Dec - 10 Jan	Aegean Airlines
18 Dec - 03 Jan	Flynas
26 Dec - 01 Jan	Aegean Airlines
18 Dec - 02 Jan	Flynas
22 Dec - 04 Jan	Pegasus Airlines
25 Dec - 01 Jan	KLM
19 Dec - 03 Jan	Flynas
01 Dec - 01 Jan	KLM
19 Dec - 02 Jan	Flynas
29 Dec - 06 Jan	KLM

Also check the deals for one-way flights from Riyadh 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 Riyadh to Lisbon in December from 302€

Return flights