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

Return flights

01 Dec - 10 Dec	Flynas
04 Dec - 11 Dec	Pegasus Airlines
04 Dec - 08 Dec	Pegasus Airlines
02 Dec - 05 Dec	Pegasus Airlines
09 Dec - 15 Dec	Flynas
14 Dec - 25 Dec	flyadeal
10 Dec - 17 Dec	Pegasus Airlines
10 Dec - 24 Dec	Flynas
13 Dec - 18 Dec	flyadeal
05 Dec - 12 Dec	flyadeal
01 Dec - 01 Jan	Flynas
17 Dec - 03 Jan	flyadeal
20 Dec - 01 Jan	flyadeal
21 Dec - 01 Jan	flyadeal
18 Dec - 04 Jan	Flynas
28 Dec - 06 Jan	AJet
19 Dec - 04 Jan	Flynas
19 Dec - 03 Jan	flyadeal
21 Dec - 02 Jan	flyadeal
20 Dec - 02 Jan	flyadeal

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 $334

Return flights