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

Return flights

16 Dec - 22 Dec	Flynas
21 Dec - 01 Jan	AJet
10 Dec - 17 Dec	Flynas
06 Dec - 10 Dec	AJet
13 Dec - 17 Dec	AJet
16 Dec - 23 Dec	AJet
16 Dec - 24 Dec	Flynas
06 Dec - 11 Dec	AJet
17 Dec - 23 Dec	Pegasus Airlines
10 Dec - 15 Dec	Flynas
09 Dec - 17 Dec	flyadeal
31 Dec - 07 Jan	flyadeal
09 Dec - 20 Jan	Flynas
29 Dec - 10 Jan	AJet
22 Dec - 03 Jan	AJet
27 Dec - 11 Jan	AJet
21 Dec - 04 Jan	AJet
31 Dec - 08 Jan	Turkish Airlines
25 Dec - 01 Jan	Turkish Airlines
18 Dec - 04 Jan	Flynas

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.

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Cheapest return flights from Riyadh to Lisbon in December from 296€

Return flights