The flight suspension began after US officials warned that servicing Iranian aircraft could lock Iraqi airports out of the US dollar system, sparking protests and threats from the militant group Kataib Hezbollah to shut airports to all foreign states by October 1. While a separate US Treasury waiver through October 28 had previously permitted limited pilgrim flights via Iraqi Airways, this new agreement expands access to most Iranian-registered airlines for the first time since the restrictions were imposed.
