Air Astana JSC
"Air Astana next week is cancelling service to Iran, where it currently operates Almaty – Tehran Imam Khomeini route. Last flight for this 2 weekly flights is scheduled on 31JUL18." (Routes Online, "Air Astana ends Tehran service in late-July," 7/23/2018).
“After careful consideration of your letter [and other factors]… it was decided to stop operation to Iran as of August 1, 2018…” (7/26/2018)