Mahan 3 or 4 x per week?
Daza
Your link to the UK Mahan site clearly shows 4 per week....however the link from the Mahan UK website to the international website shows 3 x per week in the ever changing graphic top right.
Who knows best - Mahan's UK GSA (who presumably are responsible for the UK website) - or Mahan Air in Tehran - presumably responsible for the main site?
I don't know, but I know where I'd put my money if I were a betting man, which I'm not.