Before the Full-Scale Russian Invasion of Ukraine, Ukraine International Airlines was the largest airline and the flag carrier of Ukraine. It operated flights to destinations in Europe, the Middle East, North America, and Asia but has ceased operations due to the war and has since entered bankruptcy. While airlines can overfly some war zones, no aircraft can overfly Ukraine or any region of Russia remotely near Ukraine. Ukraine International’s five top European destinations on the eve of war (January 2022), according to Cirium, an aviation analytics company.