I need to identify when ground transportation demand will spike by tracking flight capacity and availability at specific airports.

I'm thinking of a tool that can list how full are all departures and/or arrivals for a specific airport on a specific day and time.

For example, at airport AAA tomorrow between 5:00am and 7:00am there will be X passengers departing, representing Y% of capacity.

As Y approaches or reaches 100%, demand for rides to or from the airport will spike.

Suggestions?