PIA is holding talks with Uzbekistan authorities over delayed payments by the airline for using Uzbek airspace.
PIA flights from Pakistan to Europe and Canada use Uzbek airspace.
https://www.express.com.pk/epaper/PoPup ... e=20180929
Earlier, there were reports about airspace closed by Turkmenistan for PIA flights due to non-payment of airspace usage charges by the Pakistani national flag carrier airline.
Abbas