How do y'all know what flight it gets on?
See F-Train’s earlier post. You only know which Flight based on where tracking is showing where it goes.
Apple is sending orders to the U.S. on UPS flights 61 and 63. Judging from UPS tracking updates that people are getting, most orders appear be on UPS61. If you look at the screen capture in the post just above this one, you'll see that @memo90061's order is going via Taiwan. It's on UPS61.
UPS61 is Hong Kong > Taiwan > Anchorage > Louisville.
UPS63 omits the stop in Taiwan, so it's Hong Kong > Anchorage > Louisville.