AirHint found the following cheapest one-way flights from Riyadh (RUH) to Washington (IAD) in December 2025 (see full year).
One-Way flights
| 27 Dec | flyadeal | ||
| 28 Dec | Flynas | ||
| 29 Dec | EgyptAir | ||
| 31 Dec | Lufthansa | ||
| 29 Dec | Saudia | direct | |
| 31 Dec | Saudia | direct |
Also check the deals for return flights from Riyadh to Washington in December.
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