Fly from Seattle to Sydney for $581 round-trip on United.
Searching United, we found seats departing SEA on Monday, November 7, returning from SYD on Monday, November 21. Flights connect via San Francisco SFO.
Other dates are also available for travel from April through November.
See our fare details for booking info.
Need a room in Sydney? Here's what's available for the above dates on Hotelwatchdog.
All products and services mentioned on Airfarewatchdog are independently selected by our team of expert travelers. If you buy something through our links, we may earn an affiliate commission.