Source: Google
A look to the airport of Vienna, the Vienna International Airport (Flughafen Wien-Schwechat) was very successfull. I found a few planes approaching this airport. This one flies over the Danube as far as I can see and is approaching one of the runways.
Map at Google: google maps [Plane found on 3rd of November 2008]
And here is the current image within google right now:
Source: Google
This looks to me like a fat plane with four propellers. I found this machine near Honolulu International Aiport. The plane is facing north and approaching the airport of this nice island.
Map at Google: google maps [Plane found on 4th of November 2008]
And here is the current image within google right now:
Source: Google Maps
This one I found over the ocean near Boston approaching Logan International Aiport. In March 2008 this plane could be seen at Google Maps, but meanwhile this approaching machine is away there - Google made an update of the pictures here.
Link to Google maps [plane found on 19th of February 2008]
Source: Google Maps
And here is the current image within google right now:
Plane at airport Dallas - Image source: Google Maps
Map at google: google maps [last visited: 2008-03-06]
This small one is approaching Dallas International Airport.
And here is the current image within google right now: