{
    "callsign": "OKA2937",
    "number": "2937",
    "airline_code": "OKA",
    "airport_codes": "ZBTJ-ZGHA-ZGOW",
    "_airport_codes_iata": "TSN-CSX-SWA",
    "_airports": [
        {
            "name": "Tianjin Binhai International Airport",
            "icao": "ZBTJ",
            "iata": "TSN",
            "location": "Tianjin",
            "countryiso2": "CN",
            "lat": 39.124401,
            "lon": 117.346001,
            "alt_feet": 10.0,
            "alt_meters": 3.05
        },
        {
            "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": "Jieyang Chaoshan International Airport",
            "icao": "ZGOW",
            "iata": "SWA",
            "location": "Jieyang",
            "countryiso2": "CN",
            "lat": 23.55025,
            "lon": 116.505833,
            "alt_feet": 52.0,
            "alt_meters": 15.85
        }
    ]
}