Before the postponement of the Future Investment Initiative conference, some attendees canceled plans or altered travel routes to Saudi Arabia through neighboring Bahrain due to security concerns and flight disruptions

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U.S. State Department spokesperson Tommy Pigott stated that ordered departures of non-emergency U.S. staff apply specifically to Saudi Arabia, denying Reuters reports that diplomatic families in other Gulf states were ordered to leave

The United States Department of State ordered non-emergency U.S. government employees and their family members to leave Saudi Arabia following escalating Houthi attacks on civilian infrastructure

Saudi Arabia's General Authority of Civil Aviation reported that operations and air traffic at King Fahd International Airport in Dammam returned to normal after brief disruptions following the October 21, 2026 Houthi attack

Eight people were injured in the October 21, 2026 Houthi attack on Dammam's King Fahd International Airport, including nationals of Saudi Arabia, India, Yemen, Bangladesh, and Nepal

A Houthi attack on King Fahd International Airport in Dammam on October 21, 2026 killed two people, identified as a Saudi citizen and an Indian national

The U.S. Embassy in Riyadh issued a security alert warning of potential further Houthi attacks across Saudi Arabia while keeping its embassy and consulates open for consular services

Two U.S. officials stated that the ordered departures from U.S. embassies across the Gulf region could potentially involve the evacuation of all personnel and family members from the U.S. Mission to Saudi Arabia

On October 21, 2026, the U.S. Embassy in Riyadh issued a security alert warning of potential further attacks by Houthi forces on Saudi Arabia

The UK Ministry of Defence previously extended its air-to-air refueling support for Saudi warplanes for an additional 90 days prior to deploying RAF Typhoon fighter jets to Saudi Arabia

Saudi-backed Yemeni government ground forces launched a counter-offensive supported by Saudi airstrikes to recapture territory lost to Houthi rebels

UK Defence Secretary Wes Streeting announced to Parliament the RAF Typhoon deployment to defend Saudi Arabia against Houthi attacks, following a formal request for military assistance from the Saudi Arabian government

Saudi government agencies in Riyadh and the Kingdom Centre skyscraper instructed employees to work from home starting October 19, 2026 due to airport attacks.

The prolonged closure of Riyadh airport forced the postponement of Saudi Arabia's Future Investment Initiative forum, originally scheduled for October 26 to 29, 2026.

On October 19, 2026, Saudi Arabia postponed its flagship Future Investment Initiative conference, originally scheduled for October 26–29 in Riyadh, until 2027

Security risks and travel disruptions led Chief Executives from ExxonMobil, Shell, Chevron, and BP to pull out of the World Petroleum Council Energy Congress in Riyadh prior to the event

The annual Future Investment Initiative serves as Saudi Arabia's primary summit to showcase Crown Prince Mohammed bin Salman's economic diversification plans and attract foreign capital away from oil dependency

Riyadh hosted the World Petroleum Council Energy Congress, an international energy summit, in the week prior to October 19, 2026

Major financial institutions and private equity firms privately communicated safety concerns regarding attendance to Saudi Arabia's Public Investment Fund Governor Yasir Al-Rumayyan before the Future Investment Initiative conference was postponed

Saudi Arabian aviation authorities issued an official notice restricting all flights at Riyadh international airport, requiring explicit prior permission for arrivals and departures starting October 17, 2026

Houthi rebels have targeted Saudi Arabia's international airport and state oil company Saudi Aramco, disrupting thousands of flights and killing 19 people in Saudi Arabia