Distance From Castle Airport to Sydney Kingsford Smith International Airport, MER - SYD Distance

The distance from Castle Airport (MER) to Sydney Kingsford Smith International Airport (SYD) is 7504 miles or 12076 kilometers or 6516 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 Merced ( United States ) to Sydney ( Australia )?

A one-way nonstop (direct) flight between Merced and Sydney takes around 17 hours 15 minutes.

Estimated flight time from Castle Airport, Merced, United States to Sydney Kingsford Smith International Airport, Sydney, Australia is 17 hours 15 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 • MER - SYD

Kilometers		12076 km
Statute Miles		7504 miles
Nautical Miles		6516 nm
Avg. Time of Flight		17 hours 15 minutes

Castle Airport to Sydney Kingsford Smith International Airport Flight Route Map - MER to SYD Flight Path

Location of Castle Airport & Sydney Kingsford Smith International Airport is given below.
Click the map to view Merced to Sydney nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • MER - SYD

Time difference between Merced (United States) and Sydney (Australia) is 17 Hours.
Sydney time is 17 Hours ahead of Merced.

Location	Local Time
Merced (United States)	2026-08-03, 06:13:10 PDT
Sydney (Australia)	2026-08-03, 23:13:10 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

Castle Airport (MER / KMER) Merced, United States

Destination

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