Trip.com
US$525Collected
Compare pricesFlights from Sydney to Seattle
SYD → SEA · compared across 9 travel sites
- Flight time
- from 16h 34m nonstop
- Distance
- 12,472 km
- Typical one-way
- US$75
Compare Sydney → Seattle prices on 9 travel sites
Add your dates and open the same search on each travel site to find the cheapest fare. You book directly with the provider.
Booking.com
US$611Collected
Compare pricesAgoda
Flight + hotel bundles that can beat booking separately.
Compare pricesKayak
One of the largest flight metasearch engines worldwide.
Compare pricesKiwi.com
Virtual interlining specialist that mixes airlines creatively.
Compare pricesExpedia
Global OTA giant with package deals and member prices.
Compare pricesSkyscanner
The benchmark flight metasearch — “search everywhere”.
Compare pricesPriceline
Long-standing US OTA with express deals for flights.
Compare pricesMomondo
US$75Collected
Compare pricesFares auto-collected from partner search results on 2026-09-03 (one-way, economy).
Typical prices & when to book
Lowest fare collected
US$75
Momondo
Auto-collected from Momondo search results on 2026-09-03 (one-way, economy). Fares change constantly — click “Compare prices” for live fares.
Sydney → Seattle route guide
The Sydney (SYD) to Seattle (SEA) route covers roughly 12,472 km, with an estimated flight time of about 16h 34m for a nonstop service. Compare the travel sites above to find the best fare for your dates — availability and prices differ between them.
Departures use Kingsford Smith; arrivals use Seattle–Tacoma. Both airports handle the route with regular schedules, so same-day connections and day trips are realistic options.
Sydney → Seattle flight FAQ
How long is the flight from Sydney to Seattle?
Nonstop flights from Sydney to Seattle take about 16h 34m. The route covers approximately 12,472 km.
How do I find the cheapest flights from Sydney to Seattle?
Compare the same dates across the 9 travel sites listed above — their fares differ by provider. Midweek departures, flexible dates and booking a few weeks ahead usually help.
Are there direct flights from Sydney to Seattle?
Direct availability changes by season and carrier. The estimated nonstop flight time is about 16h 34m; one-stop options are widely available.