The Yemeni Armed Forces, a paramilitary group affiliated with the Houthi movement, issued a warning on 5 October demanding that international airlines cease flights through Saudi Arabian airspace, citing three recent ballistic-missile strikes against the kingdom.

"The [Yemeni Armed Forces] warn all international airlines using Saudi airspace to cease their flights, as it has become an operations zone for our forces," the statement read. "We disclaim any responsibility for the consequences of ignoring this warning."

The warning referenced three attacks:

• King Khalid International Airport in Riyadh, which the statement claimed "caused disruption of air traffic"
• A refinery in Rabigh on the Red Sea coast
• Abha airport and additional sites in the Najran and Jazan regions near the Yemeni border

The statement exempted the "sacred airspace" above Mecca and Madinah. It framed the strikes as retaliation for "Saudi aggression," referring to coalition action against Sana'a and other Yemeni governing areas.

What has EASA said?

The European Union Aviation Safety Agency has not advised a complete avoidance of Saudi airspace. It stated that Houthi forces "significantly increased the frequency and geographic scope of attacks" against Saudi infrastructure during September, with targets including energy and "aviation-related" facilities.

"While the southern and south-western parts of Saudi airspace remain particularly exposed due to their proximity to Houthi-controlled areas in Yemen, recent attacks have demonstrated the ability and intent of the Houthis to strike targets deeper inside Saudi territory," EASA wrote.

The agency concluded that the expansion "increases the potential exposure of civil aviation" beyond areas previously affected by Houthi action.

Where is the restricted zone?

EASA singled out a portion of the Jeddah flight information region where air traffic should not operate. The boundary runs through the waypoints RIBOK, BOSUT, ISLAM, DEKLO, OBSAM and SILPA — a corridor that tracks up the Red Sea, loops around Taif, then continues southeast toward the Yemeni border.

Most carriers already fly north of that boundary during Saudi crossings. A smaller number continue to use the southern airspace, either for transit or to access Abha airport.

How critical is the Saudi corridor?

Saudi airspace now functions as a primary crossing point between Europe and Asia. The closure of Russian airspace, combined with widespread airline avoidance of Iranian airspace, has compressed northern crossings into a narrow channel over the Caucasus.

That geography gives Saudi Arabia an outsized role in global long-haul scheduling. Any sustained disruption there would lengthen routings, burn additional fuel, and absorb crew-time penalties for operators already working around tight winter schedules.

The Jeddah FIR covers a wide portion of western Saudi Arabia, taking in Jeddah, Taif, Abha and the holy sites. Saudi authorities have managed the area through tactical deconfliction and emergency security measures, according to EASA, though the agency classified it as "vulnerable to rapid deterioration."

What happens next?

The warning represents an open threat rather than a binding directive. Airlines that continue southern routings through Saudi airspace will face a question of insurance coverage, crew duty limits and on-the-day tactical decisions.

Whether carriers divert, file revised routings, or maintain current paths will hinge on the next EASA risk assessment and on whether further strikes prompt the agency to widen its Jeddah FIR exclusion zone or extend the advisory north of the listed waypoints.