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

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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 - Tue, Nov 17

7:00 am - 7:45 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

17h 45m1 stop Honolulu

9:40 pm - 6:08 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

27h 28m1 stop Honolulu

$966Multiple Airlines

Wed, Feb 3 - Tue, Mar 2

7:00 am - 7:45 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

17h 45m1 stop Honolulu

9:40 pm - 9:19 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 39m1 stop Honolulu

$977Multiple Airlines

Mon, Feb 15 - Mon, Feb 22

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

23h 20m1 stop Vancouver Intl

11:20 am - 2:37 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 17m1 stop Vancouver Intl

$1,002Air Canada

Sun, Nov 15 - Sun, Nov 22

8:40 am - 9:35 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

29h 55m1 stop Vancouver Intl

11:20 am - 6:22 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 02m1 stop Vancouver Intl

$1,002Air Canada

Wed, Mar 3 - Mon, Mar 15

7:00 pm - 9:35 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 35m1 stop Vancouver Intl

11:20 am - 6:20 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

25h 00m1 stop Vancouver Intl

$1,057Air New Zealand

Mon, Mar 1 - Mon, Mar 15

7:00 pm - 9:35 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 35m1 stop Vancouver Intl

11:20 am - 6:20 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

25h 00m1 stop Vancouver Intl

$1,057Air New Zealand

Thu, Dec 3 - Thu, Dec 10

3:55 pm - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 30m1 stop Los Angeles

11:15 am - 12:02 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 47m1 stop Los Angeles

$1,091Alaska Airlines

Fri, Dec 4 - Thu, Dec 10

11:05 am - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 20m1 stop Los Angeles

11:15 am - 12:02 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 47m1 stop Los Angeles

$1,091Alaska Airlines

Wed, Nov 11 - Mon, Nov 30

10:12 am - 8:30 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

27h 18m1 stop Los Angeles

10:40 am - 4:51 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

25h 11m1 stop Los Angeles

$1,097Delta

Wed, Dec 2 - Wed, Dec 16

11:20 am - 8:30 amGEG Spokane-SYD Sydney Kingsford Smith

26h 10m2 stops Seattle/Tacoma Intl Los Angeles

10:40 am - 12:15 pmSYD Sydney Kingsford Smith-GEG Spokane

20h 35m2 stops Los Angeles Seattle/Tacoma Intl

$1,102Delta

Recent last minute flight deals from Washington to Sydney

Sun, Oct 25 - Sun, Nov 1

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

41h 20m1 stop Manila Ninoy Aquino Intl

11:30 am - 7:45 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 15m1 stop Manila Ninoy Aquino Intl

$992Philippine Airlines

Sun, Oct 25 - Sun, Nov 8

7:05 pm - 8:35 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 30m1 stop Vancouver Intl

11:20 am - 2:37 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 17m1 stop Vancouver Intl

$1,005Air Canada

Sun, Oct 25 - Sun, Nov 8

3:15 pm - 8:35 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 20m1 stop Vancouver Intl

6:20 am - 9:32 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 12m2 stops Brisbane Vancouver Intl

$1,015Multiple Airlines

Fri, Oct 23 - Fri, Oct 30

7:00 am - 6:50 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

17h 50m1 stop Honolulu

9:40 pm - 10:52 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 12m1 stop Honolulu

$1,076Multiple Airlines

Sat, Oct 24 - Sat, Oct 31

7:15 pm - 8:35 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 20m1 stop Vancouver Intl

10:20 am - 2:37 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 17m1 stop Vancouver Intl

$1,077Air Canada

Fri, Oct 23 - Fri, Oct 30

5:30 am - 7:50 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

32h 20m2 stops Salt Lake City Los Angeles

9:40 am - 2:50 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 10m2 stops Los Angeles Salt Lake City

$1,302Delta

Sun, Oct 25 - Mon, Nov 9

4:37 pm - 9:00 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 23m1 stop Los Angeles

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

20h 50m1 stop Los Angeles

$5,277Qantas Airways

Sun, Oct 25 - Mon, Nov 9

4:37 pm - 12:25 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

25h 48m2 stops Los Angeles Melbourne

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

20h 50m1 stop Los Angeles

$5,429Qantas Airways

Sun, Oct 25 - Mon, Nov 9

10:10 am - 10:30 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

30h 20m2 stops Vancouver Intl Tokyo Haneda

9:45 pm - 6:22 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

39h 37m2 stops Tokyo Haneda Vancouver Intl

$8,296ANA

Sun, Oct 25 - Mon, Nov 9

8:35 pm - 8:15 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

29h 40m2 stops San Francisco Tokyo Haneda

12:25 pm - 6:22 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

24h 57m2 stops Tokyo Haneda Vancouver Intl

$9,517ANA

Useful Info

Low season	July
High season	December
Cheapest flight	$486

Best time to beat the crowds but there is an average 2% increase in price.

Most popular time to fly with an average 29% 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.