Indian airlines cancel flights to Saudi after Houthi attacks, Air India flights returns mid-way. Air India, IndiGo and Air India Express on Thursday cancelled their flights to Saudi Arabia's Riyadh until October 10 after Iran-backed Houthis attacked King Khalid International Airport. This comes after Houthis issued warnings to global airlines against flying over Saudi airspace. An Air India flight from Delhi to Riyadh returned mid-way following the attack on the airport.