AirHint found the following cheapest return flights from Riyadh (RUH) to Washington (IAD) in May 2026 (see full year).
Return flights
| 13 May - 29 May | KLM | ||
| 04 May - 18 May | KLM | ||
| 15 May - 31 May | Delta | ||
| 03 May - 17 May | Delta | ||
| 03 May - 16 May | British Airways | ||
| 21 May - 30 May | Delta | ||
| 13 May - 29 May | Saudia | direct | |
| 04 May - 18 May | Saudia | direct |
Also check the deals for one-way flights from Riyadh to Washington in May.
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