Sydney Kingsford Smith recorded 5,644 flights across seven days in January 2025, averaging 806 movements per day and 33.6 per hour around the clock. Arrivals and departures split almost exactly in half, with 2,831 arrivals against 2,813 departures. The busiest single day was January 10 at 867 movements, while Saturday January 11 was the quietest at 726. Traffic peaked during the 10:00 AEDT hour with 429 flights, 200 arriving and 229 departing. The overnight window from 03:00 to 05:00 was the quietest stretch, bottoming out at 6 total movements in the 04:00 hour, though the airport logged activity in every hour of the day across the capture period. Melbourne dominated the route mix by a wide margin, accounting for 846 combined movements, followed by Brisbane at 514 and Gold Coast at 352. Adelaide, Canberra, and Hobart rounded out the top domestic routes. The 736 unique aircraft observed came from 25 countries. Australian-registered aircraft made up just over half the fleet at 373, with Chinese-registered aircraft second at 83, followed by the United States at 58 and Singapore at 41. Approach tracks were most concentrated from the NNE at 635 movements and SW at 548, with W and NNW also seeing heavy use. Altitude data drawn from over 3.8 million ADS-B position points shows a pronounced cruise-level concentration between 37,000 and 39,000 feet, the two busiest bands in the dataset. The average recorded altitude across all points was 19,521 feet, pulled down by the volume of low-altitude approach and departure tracks. The highest-altitude flight reached 47,250 feet, logged by Australian-registered VH-87X on an arrival covering 922 nautical miles. The longest flight by distance was an arrival by UAE-registered A6-EVD at 1,922 nautical miles over 232 minutes. The shortest was a 5.3 nautical mile departure by VH-SJE lasting under eight minutes.