An attack on King Khalid International Airport in Riyadh killed 12 people and injured more than 300 others, with victims including citizens of Saudi Arabia, Bangladesh, Palestine, the US, Egypt, Jordan, Syria and Sudan.
Saudi civil aviation authorities suspended airport operations until midnight and diverted flights, while FlightAware recorded at least 291 cancellations over a 24-hour period.
The strike occurred as regional hostilities involving Iran-backed Houthi rebels escalated, prompting US President Donald Trump to state he was considering Washington joining Saudi strikes against the group.