{
    "callsign": "GTX321",
    "number": "321",
    "airline_code": "GTX",
    "airport_codes": "KIAD-KCMH",
    "_airport_codes_iata": "IAD-CMH",
    "_airports": [
        {
            "name": "Washington Dulles International Airport",
            "icao": "KIAD",
            "iata": "IAD",
            "location": "Washington",
            "countryiso2": "US",
            "lat": 38.9445,
            "lon": -77.455803,
            "alt_feet": 312.0,
            "alt_meters": 95.1
        },
        {
            "name": "Port Columbus International Airport",
            "icao": "KCMH",
            "iata": "CMH",
            "location": "Columbus",
            "countryiso2": "US",
            "lat": 39.998001,
            "lon": -82.891899,
            "alt_feet": 815.0,
            "alt_meters": 248.41
        }
    ]
}