Here is a great resource for pilots, aviation enthusiasts or people looking for airports in a particular area of the US or Canada. Dave Parsons explains his approach to this mashup in the "About" section: "..The satellite view allows a pilot to see the layout of the runways, taxiways, and buildings (depending on the quality of the satellite images) before arriving at the airport. A chart data view has been added to Google Map's default views to show aeronautical chart information such as obstructions and special use airspace." Customize this mashup by clicking the "Settings" tab to set things like: Units, Display options and Time Zone.
More Flight Mashups can be found in the Transit & Transportation category here on Google Maps Mania. See the "Flight" sub-heading