The really odd thing about a termite swarm is that it is the one time when cooperation goes out the window.  It is every termite for his- or herself.

Around the world, ants are the main predators of termites.  When you see termite soldiers, most of the funny-shaped jaws or pointy or blocky heads are effective adaptations against ants.  When termites fly, lots get eaten before they can create a safe nest.  This makes life very hard for termites, but usually not so hard as to kill them all off.