Iran threatens regional airports as US aviation sanctions ground its carriers
Iraq has halted Iranian flights at all four of its airports, and an adviser to Iran's supreme leader has warned that neighbouring countries' aviation could be disrupted in response.
Assembled by Claude from 8 sources at 6 outlets · Friday, September 25, 2026, Evening edition, 5:22 PM EDT · no human byline
What happened
Iraqi airports have halted Iranian flights following new US aviation sanctions aljazeera.com, with the suspension applied at all four of the country's airports after a sanctions threat turkiyetoday.com. The measures have sharply reduced Iran's international air connections, and the United Arab Emirates and Oman have suspended flights operated by Iranian carriers shafaq.com.
The lever is exposure to the dollar system. Treasury Secretary Scott Bessent said foreign companies risk secondary sanctions if they provide Iranian carriers with fuel or landing services ynetnews.com. One analyst quoted on the Iraqi decision described the choice as between secondary sanctions and "being frozen out of the international US dollar system," adding that "Iraq's in a very difficult position" aljazeera.com. President Donald Trump described the wider strategy last month as "economic D-Day," comparing it to the Allied assault on Nazi-controlled France detroitnews.comturkiyetoday.com.
Tehran has answered with a threat to regional aviation. Mohammad Mokhber, an adviser to Iran's supreme leader, accused regional countries of "alignment with America" for blocking flights reuters.com, and Iranian officials framed the position as: if we cannot fly, no one can ynetnews.com. Iran has warned that the airports of countries enforcing the sanctions could face disruptions aljazeera.com.
Why it matters to investors
Secondary sanctions are now reaching ordinary service providers rather than banks and shippers. Fuel supply and landing services ynetnews.com are provided by ground handlers, airport operators and refuellers across the Gulf, which widens the set of companies that must now screen counterparties.
The retaliation threat extends the war's risk premium from shipping lanes to civil aviation aljazeera.comreuters.com. That shows up in insurance, routing and schedule reliability before it shows up in earnings.
Markets registered it. UAE stock markets closed slightly lower on Friday, reversing early gains, after the warning on regional air travel reuters.com.
What to watch
The first item is whether more states follow Iraq, the UAE and Oman in suspending Iranian services turkiyetoday.comshafaq.com, since each addition tightens the network effect the sanctions are designed to produce.
The second is whether the threat against regional airports aljazeera.com translates into any actual disruption, which would change the risk calculation for carriers, insurers and Gulf airport operators rather than only for Iranian ones.
The third is the position of countries caught between the two. Iraq's exposure to the dollar system was the stated reason for its decision aljazeera.com, and other states with similar exposure face the same choice.
Sources
- reuters.com: Allies unite behind Saudi Arabia as more Iranian flights curtailed - Reuters (2026-09-25)
- aljazeera.com: Iraqi airports halt Iranian flights after new US aviation sanctions - Al Jazeera (2026-09-25)
- turkiyetoday.com: Iraq halts Iranian flights at all four airports after US sanctions threat - Türkiye Today (2026-09-25)
- ynetnews.com: 'If we can't fly, no one can': Iran threatens neighbors over US aviation sanctions - Ynet News (2026-09-25)
- shafaq.com: Shafaq News..Iran's Mokhber threatens regional aviation over US sanctions (2026-09-25)
- detroitnews.com: New US sanctions shut down Iranian flights - The Detroit News (2026-09-25)
- aljazeera.com: Iran threatens countries enforcing US airline sanctions | Donald Trump - Al Jazeera (2026-09-25)
- reuters.com: UAE markets decline after warning on regional air travel - Reuters (2026-09-25)