Better than that.
- Visit http://www.flightaware.com
- Under Live Flight Tracking, click on 'Browse by Operator'
- In the form, type in 'UPS'
- ???
- Profit!!!
Yes, this does get you every UPS flight, but in the list of airborne aircraft, you can sort by destination. By selecting a particular flight, you'll see the history, routing, time for the flight, time en route, altitude, speed, and many other things for that flight. If you wanted to, you could even pull up the departure and arrival charts for the flight, and even the chart for the runway it will land on.