Phoenix mounts

Phoenix mounts are flying mounts, that are obtained from a variety of different ways.

Drops

 * Ashes of Al'ar is a rare drop from Kael'thas Sunstrider in the Eye.
 * Solar Spirehawk is a rare drop from Rukhmar in Spires of Arak.

Vendor

 * Reins of the Dark Phoenix is purchased from guild vendors for if the guild has completed the Guild Glory of the Cataclysm Raider achievement.

Blizzard Store

 * Sapphire Skyblazer is currently available free when a 6-month subscription is purchased, or can be bought separately from the In-Game Store for £19/€25/$25.

Unobtainable
When you completed the achievement Challenge Conqueror: Silver), you received one Ancestral Phoenix Egg in the mail. This was redeemed for a pandaren phoenix mount by visiting located in the Vale of Eternal Blossoms, outside the Seat of Knowledge. The egg was turned in for one of the following mounts, but purchasing one of the mounts automatically unlocked the other three as well:


 * Reins of the Crimson Pandaren Phoenix
 * Reins of the Ashen Pandaren Phoenix
 * Reins of the Emerald Pandaren Phoenix
 * Reins of the Violet Pandaren Phoenix