I wrote some Python scripts awhile back that pull from flight aware. You need to already know the airport or flight number.

https://github.com/khibma/FlightAwareRest

Additionally these calls cost $$$, so you need to make an account with them and provider a credit card. It's not real costly for a few flights, but I'm not sure how many you need to pull down.

You'd then have to perform some sort of average (conflation) yourself. (ArcGIS has these tools if you have it).

I'm sure others will provide free or cheaper alternatives.

I wrote some Python scripts awhile back that pull from flight aware. You need to already know the airport or flight number.

https://github.com/khibma/FlightAwareRest

These calls cost $$$, so you need to make an account with them and provide a credit card (to obtain an api key). It's not real costly for a few flights, but I'm not sure how many you need to pull down.

You'd then have to perform some sort of average (conflation) yourself. (ArcGIS has these tools if you have it).

I'm sure others will provide free or cheaper alternatives.