"I’m trying to retrieve historical flight data for a particular airline on a specific route within a given timeframe. Can I do this using only the airline’s IATA code (operator_iata) and without specifying the individual flight number (ident)?
Retrieving historical data for a particular operator is on the product roadmap and being worked on right now for release soon! You can expect to see the ability to request historical information by operator, by airport, or by city pair incrementally over the next couple months.
Watch our release notes here: AeroAPI Developer Portal - FlightAware