Saudi Arabian Airlines is putting on a promotion that gives a solid 25% on all flights booked on their website for Economy, Business and First.
In addition the airlines loyalty program gives you 2,500 miles for joining
Join us to celebrate the Saudi National Day and get 25% discount on all of our international flights*.
In addition, Join ALFURSAN loyalty program and earn 2,500 miles reward during the promotion period*.
This offer applies to Guest, Business, and First classes.
Tickets to be purchased between 19 and 30 September 2013.
This offer is valid for travel period between 01 November and 10 December 2013.
ALFURSAN reward offer valid for subscriptions between 23 and 30 September 2013.
One of the best offers is the Milan to Manila route for just $448. This fare will give you almost 10,000 miles on Alfursan (I haven't checked if the fare class will earn miles on Delta Skymiles, but it should). This is a great price for that route of you are in Europe (it does not work in reverse).
At the very least you should join Alfursan and take the 2,500 free miles. Note that the application brought up errors in Firefox for me but that might work better for you.
Update: Saudia also has great fares from Eastern Africa like Khartoum, Nairobi, Cairo and Addis Ababa to Washington, DC/ New York, NY starting from $254 one-way or ~$500 return.