Distance From Great Lakes Seaplane Base to Sydney Kingsford Smith International Airport

The distance from Great Lakes Seaplane Base () to Sydney Kingsford Smith International Airport (SYD) is 9229 miles or 14853 kilometers or 8015 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Antioch ( United States ) to Sydney ( Australia )?

A one-way nonstop (direct) flight between Antioch and Sydney takes around 21 hours 13 minutes.

Estimated flight time from Great Lakes Seaplane Base, Antioch, United States to Sydney Kingsford Smith International Airport, Sydney, Australia is 21 hours 13 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - SYD

Kilometers		14853 km
Statute Miles		9229 miles
Nautical Miles		8015 nm
Avg. Time of Flight		21 hours 13 minutes

Great Lakes Seaplane Base to Sydney Kingsford Smith International Airport Flight Route Map - to SYD Flight Path

Location of Great Lakes Seaplane Base & Sydney Kingsford Smith International Airport is given below.
Click the map to view Antioch to Sydney nonstop flight path and travel direction.

Click to see flight route on Google Map between Antioch, United States and Sydney, Australia. .

Nonstop flight route between Antioch, United States and Sydney, Australia.

Time Difference Between the Airports • - SYD

Time difference between Antioch (United States) and Sydney (Australia) is 15 Hours.
Sydney time is 15 Hours ahead of Antioch.

Location	Local Time
Antioch (United States)	2026-08-07, 21:38:03 CDT
Sydney (Australia)	2026-08-08, 12:38:03 AEST

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Great Lakes Seaplane Base ( / 41IL) Antioch, United States

Destination

Sydney Kingsford Smith International Airport (SYD / YSSY) Sydney, Australia