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

Return flights

27 Oct - 08 Nov	Flynas
26 Oct - 07 Nov	Flynas
26 Oct - 10 Nov	Flynas
30 Oct - 07 Nov	Pegasus Airlines
28 Oct - 01 Nov	Flynas
30 Oct - 04 Nov	Pegasus Airlines
27 Oct - 01 Nov	flyadeal
26 Oct - 01 Nov	Flynas
31 Oct - 07 Nov	Flynas
31 Oct - 05 Nov	LOT
26 Oct - 31 Oct	flyadeal
24 Oct - 29 Oct	flyadeal
24 Oct - 30 Oct	flyadeal
24 Oct - 31 Oct	flyadeal
25 Oct - 30 Oct	Turkish Airlines
27 Oct - 29 Oct	Lufthansa
28 Oct - 29 Oct	Lufthansa

Also check the deals for one-way flights from Riyadh to Lisbon in October.

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 October from 352€

Return flights