At What Altitude Do Reindeer Fly?

At the moment we're just waiting around. Our Cathay-Pacific non-stop from Vancouver to JFK doesn't leave until 9:45 pm local time. I don't think I've ever flown on Christmas Eve in the past. It seems a little strange. We're due to land at 6:00 am eastern time.

That means we'll be sharing airspace with Santa tonight.

I do have to thank the military folks at NORAD for their efforts in making sure Flight CX888 doesn't slow the old guy down.