The secret of draconic flight has been revealed to you, granting you the ability to fly occasionally.
Prerequisites: Draconic Heritage, sorcerer level 1st.
Benefit: After you cast an arcane spell with a casting time of 1 standard action, you gain a fly speed equal to 10 feet per level of the spell you just cast for the remainder of your turn.
Source: Races of the Dragon, page 102. This version deprecates the one in Complete Arcane, page 77.