Washington has sanctioned Iran’s remaining airlines. Yet aircraft still land in Turkey, leaving the crucial question not whether flights exist, but who is enabling them to turn around and fly home.
The US Treasury designated 27 Iranian airlines on September 8th under Executive Order 13902, alongside other aviation-sector targets, as part of 'Operation Economic Outcast'. OFAC gave foreign companies a wind-down period that expired on September 23rd. US officials warned that those providing aircraft, fuel, airport and other services to the designated carriers risk US sanctions exposure.
The Foundation for Defence of Democracies, a Washington-based think tank that advocates stronger sanctions against Iran, says its review of Flightradar24 histories found at least 83 confirmed landings in Turkey by US-sanctioned Iranian airlines between September 23rd and September 27th. The figure is a useful lead, not an independently verified official count: FDD identified 12 sanctioned airlines arriving at Istanbul, Ankara and Izmir.
What the flight count shows. FDD says Iran Air Tour and Caspian Airlines accounted for 12 Turkish landings each, Iran Air for 10, and ATA Airlines and Ava Airlines for nine apiece during the five-day period. Eight of the 12 carriers in its dataset were among the airlines newly designated by Treasury on September 8th.
A landing does not prove that a Turkish company violated US sanctions. An aircraft can arrive, turn around or depart with differing combinations of services and the public record does not identify which organisation supplied fuel, handling, catering, maintenance, parking, payment processing or airport access in each case.
It does establish the reporting problem. A carrier cannot conduct normal scheduled international operations without some degree of airport support. The outstanding facts are who provided that support, under what contracts, in what currency and with what legal advice.
Turkey becomes the test. Several neighbouring states appear to have curtailed service to Iranian carriers after the wind-down deadline. The UAE suspended Iranian-airline flights like Oman, Azerbaijan and Georgia also restricted such operations. Iraq barred Iranian carriers at Baghdad, although operations to Najaf continued at least initially.
Turkey’s position is more complicated. Reports indicate that some Iranian flights continued to land while Mahan Air which is already heavily sanctioned before the September 8th action lost Turkish ground-handling access and suspended Turkey services.
Turkey is a NATO member and a major regional aviation market. It is therefore an awkward gap in Washington’s effort to isolate Iran’s aviation sector that is too economically significant to ignore, but not automatically bound by US sanctions law.
Airport operators like Istanbul Airport, Ankara Esenboğa and Izmir Adnan Menderes should identify whether sanctioned Iranian airlines used their facilities after September 23rd and under which legal authority. Ground handlers, fuel suppliers, air navigation providers, banks and regulators may be asked. The question is not whether Turkey must adopt US foreign policy. It is whether Turkish entities have undertaken transactions that could expose them to US secondary sanctions or loss of access to the American financial system.
US sanctions bind US persons and entities. Secondary-sanctions risk is different. Treasury can penalise certain non-US persons who materially assist designated entities or conduct significant transactions in prohibited sectors, potentially restricting their ability to use the US financial system.
The September 8th Treasury action also named Turkey-based companies that it alleges supported Iran’s aviation sector. That means the Turkish service chain is already within the scope of Washington’s investigation, not merely a future concern.
Sanctions against airlines have a blunt edge. Iran’s carriers move not only state-linked personnel and goods, but students, families, workers, medical travellers and diaspora communities. Al Jazeera reported that the restrictions were already pushing some travellers from flights to slower and more expensive land routes.
For now, the evidence supports a narrower conclusion than the headline suggests: sanctioned Iranian airlines continued to land in Turkey after the US deadline. It does not yet establish which Turkish companies, if any, knowingly provided sanctionable services. That is the gap a proper investigation must close.