you will have better luck asking in the Lonely Planet Thorntree forums.

There just arent that many 'backpackers' here.

The cheapest flights would probably be on one of the low costs out of Dubai/Sharjah/Kuwait

check out Air Arabia and Jazeera Airways, for connections from the region.

alternativeairlines.com and terminala.co.uk search some unusual airlines, and you can buy Iran Air tickets there