Find out what a flight from Seattle to Sydney might cost

Prices vary based on date, airline, and availability. Compare several options if you're flying between Seattle and Sydney.

Select your dates to check current offers.

Try shifting your departure forward or backward by a day to find better options. If you’re looking for a good deal, consider flying outside peak hours as well.

Planning flights between Seattle and Sydney? Don’t forget the airport options

Especially when flying to medium or large cities, it's worth checking all possible airport combinations before booking.

• Airports in Seattle: 2 airports are listed in Seattle - Boeing Field, Lake Union.
• Airports in Sydney: Only Sydney - Kingsford Smith is currently available.

Check for differences in transport costs to and from each airport — they affect your total spend. Choosing the right airport can make a real difference in price and timing.

Adjust your flight filters for Seattle – Sydney

Jetcost gives you tools to search smarter. Pick your ideal price range, airline, departure time, and flight type — then compare offers from the best travel agencies and carriers.

Other popular destinations

Planning a trip to Australia? These cities are popular too: Adelaide, Brisbane, Melbourne, Perth, Sydney.

Sorting options let you see the most affordable flights first. Some results may include extra fees shown only at checkout — always read carefully to see what’s included.