How does KAYAK find such low prices on flights from Washington to Sydney?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Sydney.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Sydney?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Washington to Sydney?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sydney with an airline and back to Washington with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Sydney?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$486 CHEAP FLIGHTS from Washington to Sydney

Save 19% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals

Cheap Flights from Washington to Sydney

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Washington to Sydney

Mon, Nov 9 - Sun, Nov 15

10:10 am - 9:35 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 25m1 stop Vancouver Intl

11:20 am - 9:32 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

17h 12m1 stop Vancouver Intl

$965Air Canada

Mon, Nov 9 - Sun, Nov 15

3:15 pm - 9:35 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 20m1 stop Vancouver Intl

9:00 am - 9:32 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 32m2 stops Brisbane Vancouver Intl

$979Air Canada

Tue, Feb 2 - Tue, Feb 16

5:40 pm - 9:35 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

44h 55m2 stops Edmonton Vancouver Intl

11:20 am - 7:58 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

39h 38m2 stops Vancouver Intl Edmonton

$996Multiple Airlines

Thu, Mar 18 - Wed, Apr 21

10:30 pm - 9:50 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

41h 20m1 stop Manila Ninoy Aquino Intl

11:35 am - 7:35 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

25h 00m1 stop Manila Ninoy Aquino Intl

$1,006Philippine Airlines

Mon, Oct 19 - Mon, Nov 2

4:37 pm - 8:05 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 28m1 stop Los Angeles

11:15 am - 2:12 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 57m1 stop Los Angeles

$1,020Qantas Airways

Tue, Nov 3 - Tue, Nov 10

5:59 pm - 9:00 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

20h 01m1 stop Los Angeles

11:10 am - 1:00 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

20h 50m1 stop Los Angeles

$1,071Qantas Airways

Mon, Oct 19 - Mon, Nov 2

1:37 pm - 8:05 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 28m1 stop Los Angeles

11:15 am - 1:00 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

20h 45m1 stop Los Angeles

$1,089American Airlines

Wed, Jan 20 - Wed, Feb 3

7:10 am - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 15m1 stop Los Angeles

11:20 am - 12:43 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

20h 23m1 stop Los Angeles

$1,093American Airlines

Wed, Dec 2 - Tue, Dec 15

4:27 pm - 8:30 amGEG Spokane-SYD Sydney Kingsford Smith

21h 03m1 stop Los Angeles

10:40 am - 3:47 pmSYD Sydney Kingsford Smith-GEG Spokane

24h 07m1 stop Los Angeles

$1,097Delta

Tue, Jan 26 - Wed, Feb 17

2:30 pm - 6:50 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 20m1 stop Los Angeles

10:40 am - 10:35 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 55m1 stop Los Angeles

$1,097Delta

Recent last minute flight deals from Washington to Sydney

Sun, Oct 11 - Wed, Nov 4

1:37 pm - 7:30 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 53m1 stop Los Angeles

11:10 am - 3:54 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 44m1 stop Los Angeles

$1,243American Airlines

Thu, Oct 15 - Thu, Oct 22

10:05 am - 6:50 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

38h 45m1 stop Honolulu

8:45 pm - 11:32 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

20h 47m1 stop Honolulu

$1,289Multiple Airlines

Thu, Oct 15 - Wed, Oct 21

3:20 pm - 8:45 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

35h 25m2 stops Los Angeles Hong Kong Intl

3:05 pm - 10:05 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

37h 00m1 stop Hong Kong Intl

$1,315Multiple Airlines

Thu, Oct 15 - Wed, Oct 21

2:30 pm - 7:50 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 20m1 stop Los Angeles

10:15 am - 12:40 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

20h 25m1 stop Los Angeles

$1,367Delta

Thu, Oct 15 - Wed, Oct 21

11:05 am - 7:50 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

26h 45m2 stops Salt Lake City Los Angeles

10:15 am - 7:02 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 47m2 stops Los Angeles Salt Lake City

$1,371Delta

Thu, Oct 15 - Thu, Oct 22

9:45 am - 7:50 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 05m1 stop Los Angeles

10:15 am - 6:52 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 37m2 stops Los Angeles Salt Lake City

$1,420Delta

Thu, Oct 15 - Thu, Oct 22

2:19 pm - 8:45 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

36h 26m2 stops Los Angeles Hong Kong Intl

8:40 am - 8:56 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

30h 16m2 stops Hong Kong Intl Los Angeles

$1,426Multiple Airlines

Mon, Oct 12 - Wed, Oct 21

9:12 pm - 9:00 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

41h 48m2 stops Los Angeles Manila Ninoy Aquino Intl

11:15 am - 8:05 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 50m1 stop Manila Ninoy Aquino Intl

$1,431Multiple Airlines

Mon, Oct 12 - Wed, Oct 21

5:45 pm - 7:50 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

20h 05m1 stop Los Angeles

10:15 am - 8:27 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

28h 12m1 stop Los Angeles

$1,442Delta

Sun, Oct 11 - Wed, Nov 4

9:05 am - 7:55 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 50m1 stop San Francisco

11:50 am - 6:22 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

25h 32m2 stops Auckland Intl Vancouver Intl

$1,509Air New Zealand

Useful Info

Low season	July
High season	December
Cheapest flight	$486

Best time to beat the crowds but there is an average 3% increase in price.

Most popular time to fly with an average 28% increase in price.

Flight from Seattle to Sydney

How does KAYAK find such low prices on flights from Washington to Sydney?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Sydney.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Sydney?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Washington is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington to Sydney?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sydney with an airline and back to Washington with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Sydney?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.