OpenFlights BTS Add-In is a free Chrome add-on developed by Wandering Aramean. This add-in is designed to improve your OpenFlights data by providing aircraft registration details for flights operating within the USA. With just a click of the icon on a flight entry or edit page, the add-in will automatically display the aircraft registration N-Number if it is a domestic US flight since 1995 with the DoT filing the data.

This add-in is a valuable tool for aviation enthusiasts or anyone who wants to have more comprehensive flight data. It seamlessly integrates with OpenFlights and enhances the information you have about your flights. Simply save your changes after the information is added and enjoy a more complete flight log.

Please note that OpenFlights BTS Add-In supports https on the OpenFlights site, ensuring a secure browsing experience.