For anyone interested, the nice guys at https://aviation-edge.com supplied me access to their flight API so I can track how many flights fly directly over my little community in Gary Indiana: https://millerbeach.community
I wish I was able to track more frequently than every 15 minutes (free version api max, etc), because some aircraft pass overhead before they're picked up, so it's not the most accurate, but a rough figure to/from O'Hare, Midway, and Gary
I wish I was able to track more frequently than every 15 minutes (free version api max, etc), because some aircraft pass overhead before they're picked up, so it's not the most accurate, but a rough figure to/from O'Hare, Midway, and Gary