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.

$447 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

Sun, Apr 18 - Sun, Apr 25

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

$896Philippine Airlines

Sun, Apr 18 - Sun, Apr 25

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

$898Philippine Airlines

Tue, Mar 16 - Tue, Mar 30

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

41h 15m1 stop Los Angeles

10:20 am - 11:56 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

31h 36m1 stop Los Angeles

$1,103Alaska Airlines

Wed, Feb 17 - Fri, Feb 26

11:10 am - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 15m1 stop Los Angeles

11:15 am - 10:56 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 41m1 stop Los Angeles

$1,110Alaska Airlines

Tue, Feb 23 - Sun, Mar 7

7:00 am - 10:35 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

32h 35m2 stops San Francisco Auckland Intl

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

31h 00m2 stops Auckland Intl Vancouver Intl

$1,178Air New Zealand

Tue, Jan 26 - Wed, Feb 3

1:18 pm - 8:35 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 17m2 stops San Francisco Auckland Intl

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

25h 32m2 stops Auckland Intl Vancouver Intl

$1,181Air New Zealand

Wed, Mar 3 - Wed, Mar 17

3:58 pm - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 27m1 stop San Francisco

9:25 pm - 8:09 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

28h 44m1 stop San Francisco

$1,194Qantas Airways

Mon, Jan 25 - Wed, Feb 3

4:49 pm - 9:00 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 11m1 stop Los Angeles

11:10 am - 4:47 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

24h 37m1 stop Los Angeles

$1,221Qantas Airways

Sat, Feb 20 - Wed, Mar 10

7:59 pm - 6:50 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

39h 51m1 stop Los Angeles

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

18h 55m1 stop Los Angeles

$1,225Delta

Sat, Feb 20 - Mon, Mar 8

7:59 pm - 6:50 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

39h 51m1 stop Los Angeles

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

18h 55m1 stop Los Angeles

$1,225Delta

Recent last minute flight deals from Washington to Sydney

Mon, Nov 16 - Tue, Nov 24

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

17h 45m1 stop Honolulu

9:40 pm - 7:18 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

28h 38m2 stops Honolulu Lihue

$1,184Multiple Airlines

Mon, Nov 16 - Tue, Nov 24

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

17h 45m1 stop Honolulu

9:40 pm - 9:25 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 45m1 stop Honolulu

$1,184Multiple Airlines

Mon, Nov 16 - Mon, Nov 23

4:39 pm - 9:05 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 26m1 stop Los Angeles

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

18h 54m1 stop Los Angeles

$1,246United Airlines

Sun, Nov 15 - Mon, Nov 23

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

29h 15m1 stop San Francisco

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

18h 54m1 stop Los Angeles

$1,246United Airlines

Mon, Nov 16 - Wed, Nov 25

5:35 am - 8:30 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

31h 55m2 stops Salt Lake City Los Angeles

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

18h 25m1 stop Los Angeles

$1,251Delta

Sat, Nov 14 - Tue, Nov 24

7:55 pm - 8:30 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

41h 35m2 stops Salt Lake City Los Angeles

10:40 am - 8:09 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

28h 29m1 stop Los Angeles

$1,251Delta

Thu, Nov 12 - Wed, Nov 25

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

23h 00m2 stops Phoenix Sky Harbor Intl Los Angeles

2:05 pm - 8:08 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

25h 03m1 stop Dallas/Fort Worth

$1,298American Airlines

Fri, Nov 13 - Sun, Nov 29

1:35 pm - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 50m1 stop Los Angeles

11:15 am - 11:41 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 26m1 stop Los Angeles

$1,339American Airlines

Thu, Nov 12 - Wed, Nov 25

2:59 pm - 10:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 21m2 stops Los Angeles Brisbane

11:10 am - 2:42 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 32m1 stop Los Angeles

$1,409Qantas Airways

Mon, Nov 16 - Fri, Nov 27

4:59 pm - 10:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 21m2 stops Los Angeles Brisbane

11:10 am - 11:03 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 53m1 stop Los Angeles

$1,459Qantas Airways

Useful Info

Low season	July
High season	December
Cheapest flight	$447

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.