{
    "callsign": "ESR818",
    "number": "818",
    "airline_code": "ESR",
    "airport_codes": "ZSYT-RKSI",
    "_airport_codes_iata": "YNT-ICN",
    "_airports": [
        {
            "name": "Yantai Laishan Airport",
            "icao": "ZSYT",
            "iata": "YNT",
            "location": "Yantai",
            "countryiso2": "CN",
            "lat": 37.401699,
            "lon": 121.372002,
            "alt_feet": 59.0,
            "alt_meters": 17.98
        },
        {
            "name": "Incheon International Airport",
            "icao": "RKSI",
            "iata": "ICN",
            "location": "Seoul",
            "countryiso2": "KR",
            "lat": 37.469101,
            "lon": 126.450996,
            "alt_feet": 23.0,
            "alt_meters": 7.01
        }
    ]
}