Gulf nations including Qatar, Bahrain and Kuwait reopened their airspace on Tuesday morning following a brief closure the night before, after Iran fired a series of missiles targeting the United States' Al Udeid base in Qatar.

Dubai Airports also confirmed that flight operations have resumed at full capacity after a temporary suspension. The halt in operations came amid heightened tensions following Iranian retaliation for recent US strikes on Iranian nuclear sites.

"While Dubai Airports is working closely with airlines to maintain approved schedules, some delays or cancellations may still occur," a statement from the Dubai Media Office read.

"Passengers are advised to check with their airlines for the latest updates."

Major flight routes have remained cut off since Israel's initial June 13 attack on Iran and the resulting conflict, with the usually busy airspace stretching from Iran and Iraq to the Mediterranean largely devoid of commercial air traffic.

Airlines have been diverting, canceling and delaying flights throughout the region due to airspace closures and safety concerns.