Air Arabia
One way- 800le
Return- 1800le

Emirates Airlines
One way- 1993le
Return- 2729le

Another 2 good airlines that i didn't have time to check are:
Etihad Airways-brand new airlines that's popular already

Qatar Airways
Transit through qatar on ur way to dubai, fairly cheap.

Egyptair (to Dubai):
they have 7x weekly flights from Cairo
they have 2x weekly flights from Alexandria
they have 1x weekly flight from Sharm El Sheikh

Emirates (to Dubai):
they have 8x weekly flights from Cairo
they have 7x weekly flights from Alexandria

Singapore Airlines (to Dubai):
this airline has 3x weekly flights between Cairo and Dubai. The flight route Cairo-Dubai-Singapore but they offer the Cairo-Dubai sector for sale,

Air Arabia (to Sharjah):
they have 14x weekly flights from Alexandria
they have 2x weekly flights from Assuit
they have 2x weekly flights from Sharm El Sheikh
they have 2x weekly flights from Luxor
**as mentioned aboce Sharjah is a 40 minute coach ride to Dubai

And yes it would be cheaper to book flights through a travel agency or airline office in Egypt. If you want to travel from Cairo, then you can expect to pay between 200 to 600 Euros for a return ticket depending how early you book your flights and when you want to fly.

Air Arabia Airlines-Main Branch in Mohandiseen: +(202) 345 2917/8 www.airarabia.com

Blue Sky Travel Agency in Downtown
(cheap rates for dubai flight on several airlines): +(202) 579 7344

Ramses Tours (cheap rate on Etihad Airaways-gulf new line- with the following prices for a 2way ticket (cairo-dubai-cairo):
1700le (1 month)
1900le (2 months)
2121le (3 months)
Contact them on +(202)796 2871- 795 6313