At the time of this posting, my Mom is 38,000 feet above Hoxie, KS. I know this because of flightstatus.com, and interactive website that shows flight data in real time. I first heard about it on Mahalo Daily, and then from eHub.
Here is some info about my Mom’s flight:
Equipment: Boeing 757 Passenger
Latitude: 39-19-12.0 N
Longitude: 100-13-12.0 W
Speed: 422 mph (680 kph)
Altitude: 38,000 feet (11,582 meters)
Bearing: 271
To SFO: 1,200 miles (1,932 km)
From STL: 530 miles (853 km)
This is a very useful site. I also like how their main page is a Google Maps mashup of all the major airports, and if they are showing delays.
Now my mom is in Colorado, I better hurry up and get the airport!