Hyderabad, Oct. 13 -- At least 15 airlines, including four Indian carriers, have cancelled or suspended flights to Saudi Arabia after a series of Houthi attacks shut Riyadh's main airport.

King Khalid International Airport has been closed since Saturday, October 10, when a Houthi strike killed at least 12 people and injured over 300, the deadliest attack on the kingdom in more than a decade. Saudi authorities have extended the closure until midnight on October 17 through a notice to airmen (NOTAM), and several hundred flights have been cancelled.

Yemen's Iran-aligned Houthis have claimed responsibility for several of the strikes. They have warned international airlines against flying to any Saudi airport except those in Makkah and Madin...