{
    "callsign": "HXA4220",
    "number": "4220",
    "airline_code": "HXA",
    "airport_codes": "ZYTL-ZSWF-ZUTF",
    "_airport_codes_iata": "DLC-WEF-TFU",
    "_airports": [
        {
            "name": "Zhoushuizi Airport",
            "icao": "ZYTL",
            "iata": "DLC",
            "location": "Dalian",
            "countryiso2": "CN",
            "lat": 38.965698,
            "lon": 121.539001,
            "alt_feet": 107.0,
            "alt_meters": 32.61
        },
        {
            "name": "Weifang Airport",
            "icao": "ZSWF",
            "iata": "WEF",
            "location": "Weifang",
            "countryiso2": "CN",
            "lat": 36.6467,
            "lon": 119.119,
            "alt_feet": 0.0,
            "alt_meters": 0.0
        },
        {
            "name": "Chengdu Tianfu International Airport",
            "icao": "ZUTF",
            "iata": "TFU",
            "location": "Chengdu",
            "countryiso2": "CN",
            "lat": 30.319,
            "lon": 104.445,
            "alt_feet": 1444.0,
            "alt_meters": 440.13
        }
    ]
}