Seattle to Sydney Flights
Flights from Seattle (SEA) to Sydney (SYD) connect United States and Australia. The great-circle distance is approximately 12,472 km, and a typical direct flight takes about 16 to 17 hours. Airports commonly used for this city pair include SEA and SYD. The reverse route is Sydney to Seattle. Use the search tool below to compare live prices and schedules — do not treat any static text on this page as a live fare.
Route facts
- Origin
- Seattle, United States
- Destination
- Sydney, Australia
- Distance
- 12,472 km
- Typical duration
- about 16 to 17 hours
- Origin codes
- SEA
- Destination codes
- SYD
- Primary keyword
- flights from Seattle to Sydney
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Route overview
Seattle to Sydney is a city-pair air route between United States and Australia. Travelers use this corridor for leisure, business, and connecting itineraries.
Primary search codes are SEA and SYD. Related codes: SEA → SYD.
Distance
Approximate flight distance: 12,472 km (great-circle). Actual flown distance can be longer depending on airway routing.
Duration
Typical block time for a direct flight is about 16 to 17 hours. Connecting itineraries take longer and depend on layover airports.
Airports
Seattle airports and metro codes: SEA.
Sydney airports and metro codes: SYD.
Alternative routes
Related searches include the reverse route Sydney to Seattle, other destinations from Seattle, and other origins into Sydney.
Frequently asked questions
How long is the flight from Seattle to Sydney?
Direct flights from Seattle to Sydney typically take about 16 to 17 hours, depending on aircraft type, routing, and wind conditions. Connecting itineraries take longer.
What is the distance from Seattle to Sydney?
The great-circle distance between Seattle and Sydney is approximately 12,472 km. Flown distance can be longer depending on airways.
Which airports serve flights from Seattle to Sydney?
Seattle is commonly searched with code SEA (related: SEA). Sydney is commonly searched with code SYD (related: SYD).
Are there direct flights from Seattle to Sydney?
Direct service availability varies by season and airline. Compare live schedules on Cheap Flights Worldwide for current nonstop and connecting options on this route.
What is the reverse flight route from Sydney to Seattle?
The reverse city pair is Sydney to Seattle. Distance is the same great-circle measure (12,472 km); block time can differ with winds and schedules.
Which countries does the Seattle to Sydney route connect?
This route connects United States (Seattle) with Australia (Sydney).