{
    "callsign": "OTC7297",
    "number": "7297",
    "airline_code": "OTC",
    "airport_codes": "ZGSZ-ZSNJ",
    "_airport_codes_iata": "SZX-NKG",
    "_airports": [
        {
            "name": "Shenzhen Bao'an International Airport",
            "icao": "ZGSZ",
            "iata": "SZX",
            "location": "Shenzhen",
            "countryiso2": "CN",
            "lat": 22.639299,
            "lon": 113.810997,
            "alt_feet": 13.0,
            "alt_meters": 3.96
        },
        {
            "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
        }
    ]
}