I have looked everywhere for the past week to find the flight schedule origins. I know this information is coming from airlines and they will be discussed and sent to FAA. I wonder how some services like flightLabs are getting this data, which they turn into an API.
I just want to get a simple list of flights for a specific date between two airports and that seems to be a tough task to do using any API. I even thought of creating my own API, but now I don't know where to get my hands on this type of information.
Any help will be appreciated.