Customs wait times

Per-terminal, per-hour customs wait time history for an airport.

Customs wait times broken out by terminal and hour range, with average and max wait plus the passenger count each figure is based on.

GET/v1/airports/{icao_code}/wait-times/customs

Latest available day's customs wait times

GET /v1/airports/KJFK/wait-times/customs

{
  "icao_code":: "KJFK",
  "data_as_of":: "2026-07-23",
  "entries":: [
    {
      "terminal_name":: "Terminal 4",
      "flight_date":: "2026-07-23",
      "hour_range":: "14:00-15:00",
      "average_wait_minutes":: 22,
      "max_wait_minutes":: 41,
      "total_passenger_count":: 640
    }
  ]
}

data_as_of is the most recent day this data covers — the data lags real time by roughly a week, so treat it as a trend indicator rather than a live queue length.