I was trying out the terminal area codes mentioned in the FAQ. They don’t seem to work, at least not when entering them in lieu of the airport identifier code, as were I am assuming they should go.
From FAQ:
FlightAware sometimes suggests that I use a metro area or terminal area for my searches rather than an airport code. What other cities or terminal areas can I use for areas with multiple airports? (Back To Top)
Please consult FlightAware’s list of terminal areas and feel free to use them when appropriate.