Santa’s reindeer — Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Donder, Blitzen and Rudolph — received clearance to fly to Pennsylvania from Dr. Sarah Coburn, Alaska’s state veterinarian.

Now, it's time for Santa's busiest day of the year. As Rudolph and his fellow reindeer - Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Donner and Blitzen - pull Santa's sleigh across the world ...