**Ongoing Houthi missile and drone strikes have repeatedly forced temporary suspensions of operations at Riyadh’s King Khalid International Airport, driving trader focus on security-related causes for any 24-hour departure closure.** Multiple attacks this week, including strikes on October 8–10, killed at least 15 people total, wounded hundreds, damaged aircraft, and prompted evacuations, flight diversions, and hundreds of cancellations. Saudi civil aviation authorities suspended operations for damage assessments and safety checks after each incident, with all flights diverted on the latest date and airlines such as Etihad, Qatar Airways, Lufthansa, and Air India extending pauses into mid-October. Houthis, aligned with Iran, have claimed responsibility and declared Saudi airspace a military zone, escalating amid the collapsed Yemen truce and wider regional conflict. Operations partially resumed between strikes, but the pattern of repeated targeting of aviation infrastructure remains the dominant near-term risk factor. Riyadh is also scheduled to host major energy and investment conferences later in October, adding pressure on authorities to restore normalcy quickly. Any further strikes or extended security halts could sustain elevated closure probabilities until the threat de-escalates.