Maybe someone already posted this or it's in the wiki post but I thought I'd post it as it's been helpful to me.
If your phone status has changed to "Shipped", you can view the invoice on the Apple site.
That invoice has the serial number on it.
Go to Apple.com, then pick the ORDERS page (the little "shopping bag" icon at the far right on the home page... go to your orders page). Now, log in, and find your iPhone order... and click on Print All Invoices to see your shiny new iPhone serial number.
You can look up the week of manufacture and factory here, using the
serial number:
http://www.chipmunk.nl/klantenservice/applemodel.html
or
http://sndeep.info/en
Link for tracking:
http://www.ups.com/WebTracking/reference?loc=en_US
Another way to find it, enter your phone number + zip:
https://www.villagedrapes.com/html/tracking.html
If your phone number isn’t working for UPS tracking, use your order number but subtract the last two numbers/letters. Say your order number is: W123456789, you'd put in: W1234567 - make sure to use
the tracking by reference feature.
Flight info:
http://flightaware.com/live/fleet/UPS
http://flightaware.com/live/iphone
When you see the time that your flight leaves China (make sure that the UPS or FedEx info is showing it per China time, or do the math), and you can usually narrow it down