U.S. Department of State disappointed over Turkey shutting down its  airspace for Armenian airplanes 

ArmInfo. The U.S. strongly supports Armenia-Turkey normalization, which would be important for  not just these two countries but helpful for stability across the region, Vedant Patel, Principal Deputy Spokesperson, U.S. Department of State, told a briefing as he commented on suspension of Armenian  airline overflight permissions by Turkey. 

"We note with disappointment Turkiye's announcement that it would  suspend Armenian airline overflight permissions. An agreement that  had previously been reached between these two countries to resume air  connections had been a very important confidence-building measure -  not just between these two countries, but, again, for regional  stability broadly. And it's our sincere hope that Turkiye and Armenia  can continue to rebuild economic ties and open transportation links  as well," he said. 

On April 29, Turkey shut down its airspace for Armenian airplanes. On  May 2, Turkey's authorities denied the Flyone Armenia airline an  overflight permission, which made the airline cancel its  Yerevan-Paris- Yerevan flight. 

Turkish FM Mevlut Cavusoglu stated that Turkey's step was in response  to "Yerevan's provocation", namely, the unveiling of a monument to  the participants in the Operation Nemesis, on April 25.