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

Return flights

03 Dec - 07 Dec	British Airways
17 Dec - 06 Jan	Royal Jordanian
14 Dec - 31 Dec	Delta
01 Dec - 07 Dec	KLM
03 Dec - 05 Jan	Delta
12 Dec - 29 Dec	Delta
25 Dec - 01 Jan	Etihad Airways
24 Dec - 02 Jan	Etihad Airways
26 Dec - 02 Jan	Etihad Airways
03 Dec - 22 Dec	British Airways
10 Dec - 22 Dec	British Airways
01 Dec - 03 Jan	Etihad Airways
05 Dec - 26 Dec	Etihad Airways
01 Dec - 04 Dec	Etihad Airways
03 Dec - 05 Jan	Saudia	direct
31 Dec - 07 Jan	Delta
26 Dec - 02 Jan	Saudia	direct
24 Dec - 02 Jan	Saudia	direct
04 Dec - 11 Dec	Emirates
12 Dec - 17 Dec	ITA Airways

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 $704

Return flights