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.

$514 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

Tue, Feb 2 - Wed, Feb 17

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

29h 55m1 stop Vancouver Intl

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

17h 12m1 stop Vancouver Intl

$978Air Canada

Tue, Feb 9 - Tue, Feb 23

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

23h 20m1 stop Vancouver Intl

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

29h 37m1 stop Vancouver Intl

$978Air Canada

Mon, Mar 1 - Wed, Mar 17

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

19h 35m1 stop Vancouver Intl

6:20 am - 9:15 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

20h 55m2 stops Brisbane Vancouver Intl

$989Multiple Airlines

Mon, Nov 9 - 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

$989Multiple Airlines

Sat, Feb 20 - Sun, Mar 7

9:50 am - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

25h 35m1 stop Los Angeles

11:15 am - 10:52 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 37m1 stop Los Angeles

$1,065Alaska Airlines

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

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

Wed, Nov 25 - Wed, Dec 2

11:30 am - 8:30 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

26h 00m2 stops Salt Lake City Los Angeles

10:40 am - 2:43 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 03m2 stops Los Angeles Salt Lake City

$1,130Delta

Mon, Nov 23 - Wed, Dec 2

11:30 am - 8:30 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

26h 00m2 stops Salt Lake City Los Angeles

10:40 am - 12:36 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

20h 56m2 stops Los Angeles Salt Lake City

$1,130Delta

Sun, Nov 22 - Tue, Dec 22

5:23 pm - 9:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

20h 57m1 stop San Francisco

1:20 pm - 4:32 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 12m1 stop San Francisco

$1,162United Airlines

Recent last minute flight deals from Washington to Sydney

Fri, Oct 30 - Thu, Nov 5

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

23h 20m1 stop Vancouver Intl

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

17h 12m1 stop Vancouver Intl

$1,053Air Canada

Fri, Oct 30 - Thu, Nov 5

12:13 pm - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 12m2 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

Fri, Oct 30 - Thu, Nov 5

3:44 pm - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

20h 41m1 stop San Francisco

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

21h 19m2 stops Honolulu Kahului

$1,059Multiple Airlines

Fri, Oct 30 - Thu, Nov 12

11:33 am - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 52m1 stop Los Angeles

11:15 am - 5:55 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

25h 40m1 stop Los Angeles

$1,093Alaska Airlines

Sat, Oct 31 - Fri, Nov 6

11:33 am - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 52m1 stop Los Angeles

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

21h 57m1 stop Los Angeles

$1,093Alaska Airlines

Mon, Nov 2 - Wed, Jan 13

12:20 pm - 9:05 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

25h 45m1 stop Los Angeles

11:50 am - 2:26 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 36m1 stop San Francisco

$1,162United Airlines

Mon, Nov 2 - Wed, Jan 13

8:30 am - 9:05 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

29h 35m2 stops Denver Intl Los Angeles

11:50 am - 2:26 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 36m1 stop San Francisco

$1,166United Airlines

Sun, Nov 1 - Sat, Nov 21

6:00 am - 6:55 amGEG Spokane-SYD Sydney Kingsford Smith

29h 55m1 stop Dallas/Fort Worth

7:20 am - 12:20 pmSYD Sydney Kingsford Smith-GEG Spokane

24h 00m2 stops Brisbane Dallas/Fort Worth

$1,199Qantas Airways

Mon, Nov 2 - Wed, Jan 13

6:00 am - 8:35 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

31h 35m2 stops Los Angeles Auckland Intl

9:55 am - 9:59 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

31h 04m2 stops Auckland Intl Los Angeles

$1,233Air New Zealand

Sun, Nov 1 - Wed, Nov 4

7:05 pm - 9:35 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

$1,285Air Canada

Useful Info

Low season	July
High season	December
Cheapest flight	$514

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.