Application deployed at: https://nyc-air.herokuapp.com
data/countries.geojson is from https://github.com/datasets/geo-countries who got this data from Natural Earth.
Airport Master Record pulled on 7/12/2018 from https://www.gcr1.com/5010web/default.cfm . Export was filtered to only show airports in NJ/NY who were a part of NJIAS.
In excel, field names were adjusted to be more easily imported, two columns were added to show lat/long in decimal degrees