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.

$505 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, Mar 1 - Wed, Mar 17

9:30 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, May 2 - Wed, May 12

11:55 pm - 9:45 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

40h 50m1 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

$1,002Philippine Airlines

Wed, Feb 10 - Mon, Feb 15

7:05 pm - 9:35 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 30m1 stop Vancouver Intl

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

17h 12m1 stop Vancouver Intl

$1,050Air Canada

Mon, Feb 1 - Wed, Feb 10

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

29h 55m1 stop Vancouver Intl

11:20 am - 9:57 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

29h 37m1 stop Vancouver Intl

$1,050Air Canada

Fri, Feb 19 - Mon, Mar 8

4:47 pm - 6:25 amGEG Spokane-SYD Sydney Kingsford Smith

18h 38m1 stop San Francisco

7:15 pm - 8:55 pmSYD Sydney Kingsford Smith-GEG Spokane

44h 40m2 stops Auckland Intl Dallas/Fort Worth

$1,080Qantas Airways

Fri, Feb 19 - Mon, Mar 8

4:47 pm - 6:25 amGEG Spokane-SYD Sydney Kingsford Smith

18h 38m1 stop San Francisco

7:15 pm - 8:55 pmSYD Sydney Kingsford Smith-GEG Spokane

44h 40m2 stops Auckland Intl Dallas/Fort Worth

$1,081Qantas Airways

Mon, Feb 1 - Mon, Feb 8

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

28h 25m1 stop Vancouver Intl

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

22h 17m1 stop Vancouver Intl

$1,089Air New Zealand

Sun, May 2 - Mon, May 10

2:55 pm - 7:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 25m1 stop Vancouver Intl

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

17h 00m1 stop Vancouver Intl

$1,089Air New Zealand

Sat, Nov 14 - Fri, Nov 20

10:07 am - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

25h 18m1 stop Los Angeles

11:15 am - 11:03 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 48m1 stop Los Angeles

$1,093Alaska Airlines

Thu, Mar 18 - Mon, Mar 22

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

41h 30m1 stop Los Angeles

11:15 am - 8:51 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

39h 36m1 stop Los Angeles

$1,096Alaska Airlines

Recent last minute flight deals from Washington to Sydney

Thu, Nov 5 - Thu, Nov 12

12:00 pm - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 25m1 stop Los Angeles

9:40 pm - 11:59 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 19m2 stops Honolulu Kahului

$1,059Multiple Airlines

Thu, Nov 5 - Thu, Nov 12

8:45 am - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

26h 40m2 stops Portland Los Angeles

9:40 pm - 11:59 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 19m2 stops Honolulu Kahului

$1,059Multiple Airlines

Thu, Nov 5 - Sat, Jan 23

11:30 am - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 55m1 stop Los Angeles

11:15 am - 10:58 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 43m1 stop Los Angeles

$1,093Alaska Airlines

Thu, Nov 5 - Sat, Jan 23

8:45 am - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

26h 40m2 stops Portland Los Angeles

11:15 am - 8:40 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

28h 25m1 stop Los Angeles

$1,097Alaska Airlines

Fri, Nov 6 - Fri, Nov 13

7:05 pm - 1:40 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 35m2 stops Vancouver Intl Brisbane

11:20 am - 9:27 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

17h 07m1 stop Vancouver Intl

$1,167Air Canada

Sun, Nov 8 - Tue, Nov 17

7:35 pm - 9:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

18h 45m1 stop San Francisco

11:50 am - 12:20 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 30m1 stop San Francisco

$1,198United Airlines

Tue, Nov 3 - Wed, Nov 11

1:16 pm - 9:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

25h 04m1 stop San Francisco

11:20 am - 11:14 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 54m1 stop Los Angeles

$1,198United Airlines

Tue, Nov 3 - Wed, Nov 11

5:30 am - 8:30 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

32h 00m2 stops Salt Lake City Los Angeles

10:40 am - 10:05 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 25m1 stop Los Angeles

$1,203Delta

Tue, Nov 3 - Tue, Nov 10

5:30 am - 8:30 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

32h 00m2 stops Salt Lake City Los Angeles

10:40 am - 10:05 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 25m1 stop Los Angeles

$1,203Delta

Sun, Nov 8 - Sun, Nov 15

1:35 pm - 9:00 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 25m1 stop Los Angeles

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

20h 50m1 stop Los Angeles

$1,242Qantas Airways

Useful Info

Low season	July
High season	December
Cheapest flight	$505

Best time to beat the crowds but there is an average 1% 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.