Transmutation
Level: Sorcerer 5, Wizard 5
Components: V, S
Casting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Target: One creature/level, no two of which are more than 30 ft. apart
Duration: 1 minute/level
Saving Throw: Will negates (harmless)
Spell Resistance: Yes (harmless)
As your gestures point out which creatures receive the benefits of your spell, they seem lighter on their feet.
This spell functions like fly, except as noted here. This spell confers the power of flight upon all targeted creatures. Each recipient of the spell must remain within 30 feet of at least one other recipient, or the spell ends for the creature that is separated from the others. If only two individuals are affected, the spell ends for both if the distance between them exceeds 30 feet.
Source: Spell Compendium (Page 96)