Hi! Please see the attached google doc which explains what I'm looking for in detail. This spreadsheet has a sheet with the zip code/lat long database, as well as a sheet with airport code/lat long database. I want to use that data to calculate mileage. Again, the spreadsheet has greater detail piece by piece. Thank you in advance for any and all help offered! Also, I'm open to suggestion on any formatting ideas if it makes better sense and I can still get to my end goal.

https://docs.google.com/spreadsheets...it?usp=sharing