Originally Posted by
motojet
That was my question. If Bahrain closes their FIR to Qatar Airways can they make it over to Tehran FIR by staying lower and in the Doha Approach airspace? If not they are boxed in.
It's very complicated.
Qatar does not have its own FIR. The Airspace around Qatar is controlled by Doha Radar up to around FL 250. But this airspace does not extend to the Iranian FIR boundary. Consists of the Airspace above Qatar mainland and extends outwards from there to different ranges. When entering through UAE its directly to Doha or vice versa. Entering through Iran directly North of Qatar its a short stint with Bahrain then over to Doha. Technically speaking Qatar could create it's own FIR but that would take a long time.
So any flight leaving Qatar has to contact either Bahrain, UAE or Jeddah FIR. Technically I suppose Doha Radar could extend its range to the Border of Tehran FIR to the North. But then you would have a condition similar to that in the airspace between Cyprus and Turkey with two separate entities both claiming that they control that airspace.