I’m on My AeroAPI on Flight Aware website doing some learning and experimenting, trying to get a map of a specific flight, but have no idea how to do this. What do I put for *id string? It has “UAL1234-1234567890-airline-0123” prefilled in the box, but don’t understand anything after UAL1234.
The flight ID uniquely identifies a single flight within FlightAware’s database of flights.
These are opaque identifiers, you’re not expected to directly construct one. You would use one of the search-oriented endpoints, e.g. GET /flights/{search} to search for flights matching some criteria; the results of that call will include the fa_flight_id for each flight found.
see also this FAQ