{
    "callsign": "OKA3227",
    "number": "3227",
    "airline_code": "OKA",
    "airport_codes": "ZGHA-ZSNJ",
    "_airport_codes_iata": "CSX-NKG",
    "_airports": [
        {
            "name": "Changsha Huanghua International Airport",
            "icao": "ZGHA",
            "iata": "CSX",
            "location": "Changsha",
            "countryiso2": "CN",
            "lat": 28.189199,
            "lon": 113.220001,
            "alt_feet": 217.0,
            "alt_meters": 66.14
        },
        {
            "name": "Nanjing Lukou Airport",
            "icao": "ZSNJ",
            "iata": "NKG",
            "location": "Nanjing",
            "countryiso2": "CN",
            "lat": 31.742001,
            "lon": 118.862,
            "alt_feet": 49.0,
            "alt_meters": 14.94
        }
    ]
}