flydubai in summer 2017 is adjusting service to Iran, with minor frequency changes. Planned operation as follow.
Dubai – Ahvaz (Ahwaz) Last flight scheduled on 12APR17, currently served twice weekly
Dubai – Isfahan 19MAY17 – 28JUN17 Reduce from 3 to 2 weekly
Dubai – Mashad 26MAR17 – 25JUN17 Reduce from 5 to 4 weekly (Note the airline has already reduced service from 7 to 6 weekly from 04JAN17, moving to 4-5 weekly level in S17)