New Delhi, March 3 -- Travelers stranded by a widening war began departing the United Arab Emirates aboard a small number of evacuation flights Monday, even as most commercial air traffic across the Middle East remained suspended.

The limited flights out of Dubai and Abu Dhabi took place as the U.S. State Department urged its own citizens in 13 countries, including UAE, Jordan, Saudi Arabia, Egypt, Lebanon and Oman, to "depart now via commercial means due to serious safety risks." Sweeping airspace closures and flight cancellations across the region left many fewer options for heeding the advice.

Since U.S. and Israeli strikes on Iran and retaliatory attacks on Israel and Gulf states started Saturday, commercial flights have been halted...