spikejones52002:
You are at 30,000 ft+ and traveling at 550 MPH+. Are you Data from Startrek TNG? You are able to discern all the different conversations as you pass overhead.
Pack your scanner into your check in baggage.
There are several passive devices you can purchase, and legally listen to ATC on the plane. Neither are scanners.
Click here: http://www.scannermaster.com/Passive_Aircraft_Airband_Monitor_Receiver_p/41-561300.htm . If you are familiar at all with your route, and have listened to ATC in the past, you will pretty much be able to follow the conversations.
I host the local sector of ATC over Mason City at http://208.126.44.124:9111 (plug that into your Windows media player). (ATC runs from 2300 hours til 1300 hours ever day, and from 1300 to 2259 hours UPRR). The bandwith is limited, and the URL is subject to change at the whims of the ISP.