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

Return flights

28 Dec - 09 Jan	Delta
30 Dec - 06 Jan	Delta
31 Dec - 05 Jan	Delta
31 Dec - 07 Jan	Delta
29 Dec - 02 Jan	Lufthansa
31 Dec - 05 Jan	Saudia	direct
31 Dec - 07 Jan	Saudia	direct
29 Dec - 02 Jan	Saudia	direct

Also check the deals for one-way flights from Riyadh to Washington 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 Washington in December from 641€

Return flights