Missions are of two types in aion online

a) skriptovanny flight used to move to a nearby location (similar to moving on griffins in WoW), in this case the flight is not subject to the limitations on the duration, you will fly until you reach the point of destination. Move to more remote locations by using portals.
b) Free flight, the player controls the movement of their own in the air, are only available in free flight locations. If a location with no restrictions on flights, then take off at any point, not only in flight-point.
All locations have flight point - "landing strip '- a place in which it starts or ends skriptovanny flight.
In PvE coasts are most often used to perform various quests and gathering. Some artery, NPCs, mobs are either in the air, or on a high mountain \ tower, etc., which are impossible not to get off.
It is possible to use tactical flight in PvP.
During the siege of his castle is surrounded by a protective aura, which blocks the possibility of flying through the walls inside.
There are no plans to introduce mounts (not flying, not run) and other air transport. Flying ships have only an NPC-race Balaur. bRazrabotchiki said that the game will be skills that are available only in flight. No precise information about it yet (I think it is not introduced in beta).