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.

$504 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

3:15 pm - 2:40 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 25m2 stops Vancouver Intl Brisbane

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

17h 12m1 stop Vancouver Intl

$980Air Canada

Mon, Nov 9 - Tue, Nov 17

3:15 pm - 2:40 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 25m2 stops Vancouver Intl Brisbane

8:30 am - 9:32 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

20h 02m2 stops Brisbane Vancouver Intl

$994Air Canada

Thu, Apr 8 - Thu, Apr 22

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

$1,006Philippine Airlines

Sun, Nov 8 - Sun, Nov 15

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

28h 25m1 stop Vancouver Intl

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

22h 12m2 stops Brisbane Vancouver Intl

$1,013Multiple Airlines

Sun, Nov 1 - Wed, Nov 18

4:59 pm - 9:00 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 01m1 stop Los Angeles

11:10 am - 2:12 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 02m1 stop Los Angeles

$1,051Qantas Airways

Sun, Mar 21 - Wed, Mar 24

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

23h 20m1 stop Vancouver Intl

10:20 am - 9:15 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

16h 55m1 stop Vancouver Intl

$1,057Air New Zealand

Wed, Mar 17 - Sun, Mar 28

7:00 pm - 8:35 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 35m1 stop Vancouver Intl

10:20 am - 9:18 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

16h 58m1 stop Vancouver Intl

$1,057Air New Zealand

Tue, Nov 24 - Tue, Dec 1

3:46 pm - 9:00 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 14m1 stop Los Angeles

11:10 am - 9:00 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

40h 50m1 stop Los Angeles

$1,077Qantas Airways

Mon, Feb 1 - Tue, Mar 16

10:21 am - 6:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 59m1 stop San Francisco

1:20 pm - 3:54 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

20h 34m1 stop San Francisco

$1,087United Airlines

Sun, Jan 31 - Wed, Mar 10

5:28 pm - 9:05 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

20h 37m1 stop Los Angeles

11:50 am - 10:21 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

17h 31m1 stop San Francisco

$1,087United Airlines

Recent last minute flight deals from Washington to Sydney

Mon, Oct 19 - Mon, Nov 2

5:04 pm - 8:05 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 01m1 stop Los Angeles

11:15 am - 10:57 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 42m1 stop Los Angeles

$1,066Qantas Airways

Mon, Oct 19 - Mon, Nov 2

3:18 pm - 7:55 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 37m1 stop San Francisco

11:50 am - 4:27 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 37m1 stop San Francisco

$1,078Lufthansa

Mon, Oct 19 - Mon, Nov 2

5:04 pm - 8:05 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 01m1 stop Los Angeles

11:10 am - 8:09 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

27h 59m2 stops Los Angeles Phoenix Sky Harbor Intl

$1,080Multiple Airlines

Mon, Oct 19 - Mon, Nov 2

3:20 pm - 8:05 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 45m1 stop Los Angeles

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

20h 50m1 stop Los Angeles

$1,091Qantas Airways

Sun, Oct 18 - Mon, Jan 18

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

20h 05m1 stop Los Angeles

10:40 am - 2:37 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 57m1 stop Los Angeles

$1,097Delta

Sun, Oct 18 - Mon, Jan 18

12:16 pm - 8:00 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

25h 44m1 stop Los Angeles

11:20 am - 9:17 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

28h 57m2 stops Los Angeles Denver Intl

$1,097United Airlines

Mon, Oct 19 - Mon, Jan 18

6:43 pm - 8:00 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 17m1 stop Los Angeles

11:20 am - 9:17 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

28h 57m2 stops Los Angeles Denver Intl

$1,097United Airlines

Mon, Oct 19 - Mon, Nov 2

3:10 pm - 8:05 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 55m2 stops Phoenix Sky Harbor Intl Los Angeles

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

20h 45m1 stop Los Angeles

$1,098American Airlines

Mon, Oct 19 - Mon, Oct 26

3:10 pm - 8:05 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 55m2 stops Phoenix Sky Harbor Intl Los Angeles

1:05 pm - 4:48 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 43m1 stop Dallas/Fort Worth

$1,098American Airlines

Mon, Oct 19 - Mon, Oct 26

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

26h 45m2 stops Salt Lake City Los Angeles

9:40 am - 4:55 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

25h 15m2 stops Los Angeles Salt Lake City

$1,102Delta

Useful Info

Low season	July
High season	December
Cheapest flight	$504

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

Most popular time to fly with an average 27% 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.