Flight Route · International
Seattle → Sydney
SEA to SYD
Seattle–Tacoma International Airport to Sydney Kingsford Smith Airport: 7,750 miles (12,472 km), about 16h 5m airborne, +17h time-zone shift on arrival.
Distance
7,750 mi
12,472 km
Flight time
16h 5m
block time, approx
Time-zone shift
+17h
Los_Angeles → Sydney
International?
Yes
United States → Australia
SEA–SYD questions, answered
How long is the flight from Seattle to Sydney?
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A direct flight from Seattle–Tacoma International Airport (SEA) to Sydney Kingsford Smith Airport (SYD) takes approximately 16h 5m. Actual block time varies with aircraft type, winds, and routing.
What is the distance from SEA to SYD?
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The great-circle distance from Seattle–Tacoma International Airport to Sydney Kingsford Smith Airport is approximately 7750 miles (12472 kilometers). Actual flown distance varies slightly with the routing assigned by air traffic control.
What is the time difference between Seattle and Sydney?
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Sydney is +17h relative to Seattle. America/Los_Angeles → Australia/Sydney.
Which airlines fly from SEA to SYD?
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Carriers serving both endpoints include various international and regional carriers. Direct service depends on the specific carrier and season — confirm with your booking source for current schedules.
Is this an international flight?
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Yes. Seattle–Tacoma International Airport is in United States, and Sydney Kingsford Smith Airport is in Australia. Travelers should confirm passport, visa, and customs requirements before departure.
Can I track SEA–SYD flights on TripDesk365?
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Yes. TripDesk365 imports your booking confirmations from your inbox, identifies the route, and shows real-time status — gate changes, delays, and live aircraft position. Free for 14 days.
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