Fly2Any tracks the SYD to SEA route, but current fare coverage is limited. A typical trip takes about 16h.Live fare and carrier claims are withheld until observed route data is available.
Origin airport
Sydney Kingsford Smith
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Destination airport
Seattle-Tacoma International
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Corridor hub
Open the oceania corridor
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Compare live flight options — live prices, flexible dates, free cancellation options
Looking for cheap flights from Sydney, Australia (SYD) to Seattle, WA (SEA)? You've come to the right place. Fly2Any compares prices from over 900 airlines to help you find the best deals on this popular route.
The great-circle distance from SYD to SEA is about 7750 miles, which suggests a nonstop flight time around 16h. Actual schedules, elapsed travel time, and connection patterns must be validated in live search before booking.
For the best prices on SYD to SEA flights, we recommend booking 2-3 months in advance. Prices tend to be lowest for mid-week departures (Tuesday and Wednesday). Use our Price Calendar feature to compare prices across different dates and find the cheapest options.
Route planning data last updated: May 2026
Direct flights from Sydney, Australia (SYD) to Seattle, WA (SEA) take approximately 16h. Connecting flights may add 2-4 hours depending on layover location. For the fastest journey, look for nonstop flights which are typically available on this popular route.
The best booking window for SYD to SEA flights depends on route demand, cabin, inventory, fare rules, and season. Domestic routes often price differently in off-peak months, but live fare checks are required before booking. Monitor prices early, compare flexible dates, and validate the live total before payment.
The cheapest days to fly from Sydney, Australia to Seattle, WA change with live demand, holidays, seat inventory, and fare rules. Use flexible-date search for the SYD to SEA route and compare the final customer-facing total before booking.
Multiple airlines serve the SYD to SEA route. Compare prices across all carriers using Fly2Any to find the best combination of price, timing, and amenities.
Lower-fare months for SYD to SEA can include January, February, September, but this is planning guidance, not a live fare guarantee. Domestic routes often price differently in off-peak months, but live fare checks are required before booking. Use Fly2Any price alerts and live search before booking.
Baggage allowances vary by airline and fare class. Most full-service carriers include one checked bag (up to 50 lbs) on this route. Budget carriers may charge live pricing for checked bags. All airlines allow one personal item free. Compare total costs including baggage fees when booking to get the best deal.
Yes, several airlines offer nonstop flights from SYD to SEA. Direct flights take approximately 16h. If you're flexible with your schedule, connecting flights through major hubs like ATL or ORD may offer lower prices.
Prices for SYD to SEA flights typically range with live pricing roundtrip for economy class, depending on when you book and travel dates. Use Fly2Any to compare all airlines and find current deals. Setting a price alert ensures you never miss a fare drop.
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Next best path
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