There are huge differences between influenza and Ebola. Ebola is not spread through airborne means, but through direct contact with fluids, including droplets. While droplet transmission is similar to airborne, its range is limited; a person sitting on the opposite side of the room from an Ebola patient is unlikely to get sick. Ebola is also only contagious during symptomatic disease...well, it does persist in some bodily fluids, but it takes close personal contact to be exposed to those fluids.
Avian influenza is not transmissible except through close contact. It has a high death rate similar to that of Ebola. Where it differs is that influenza viruses exchange genes with each other, and mutate rapidly. A highly lethal influenza virus can, through mutation or gene trading, become a true airborne virus. Influenza is also contagious before symptoms appear and after they clear up. Once a highly lethal form of contagious influenza emerges and spreads beyond its point of origin, there is no way to stop it from spreading globally.
That is why there is continuing worry over avian influenza, while the Ebola outbreak is considered more of a public health emergency affecting Africa. Ebola is not likely to become highly contagious through the air, ever.
What if ebola was mutated in lab condition with influenza to make a bioweapon?