Distance From James M Cox Dayton International Airport to Sydney Kingsford Smith International Airport, DAY - SYD Distance

The distance from James M Cox Dayton International Airport (DAY) to Sydney Kingsford Smith International Airport (SYD) is 9398 miles or 15125 kilometers or 8162 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 Dayton ( United States ) to Sydney ( Australia )?

A one-way nonstop (direct) flight between Dayton and Sydney takes around 21 hours 36 minutes.

Estimated flight time from James M Cox Dayton International Airport, Dayton, United States to Sydney Kingsford Smith International Airport, Sydney, Australia is 21 hours 36 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 • DAY - SYD

Kilometers		15125 km
Statute Miles		9398 miles
Nautical Miles		8162 nm
Avg. Time of Flight		21 hours 36 minutes

James M Cox Dayton International Airport to Sydney Kingsford Smith International Airport Flight Route Map - DAY to SYD Flight Path

Location of James M Cox Dayton International Airport & Sydney Kingsford Smith International Airport is given below.
Click the map to view Dayton to Sydney nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • DAY - SYD

Time difference between Dayton (United States) and Sydney (Australia) is 16 Hours.
Sydney time is 16 Hours ahead of Dayton.

Location	Local Time
Dayton (United States)	2025-12-15, 20:18:19 EST
Sydney (Australia)	2025-12-16, 12:18:19 AEDT

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

James M Cox Dayton International Airport (DAY / KDAY) Dayton, United States

Destination

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