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.

$491 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, Nov 8 - Sun, Nov 22

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

28h 25m1 stop Vancouver Intl

8:30 am - 9:27 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 57m2 stops Brisbane Vancouver Intl

$967Air Canada

Sun, Nov 8 - Sun, Nov 22

7:05 pm - 4:40 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

26h 35m2 stops Vancouver Intl Brisbane

8:30 am - 9:27 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 57m2 stops Brisbane Vancouver Intl

$986Air Canada

Thu, Feb 25 - Sun, Mar 14

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

41h 20m1 stop Manila Ninoy Aquino Intl

11:30 am - 6:45 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 15m1 stop Manila Ninoy Aquino Intl

$1,007Philippine Airlines

Thu, Mar 18 - Wed, Apr 21

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

41h 20m1 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

$1,007Philippine Airlines

Mon, Nov 23 - Wed, Dec 9

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

$1,030Air New Zealand

Mon, Nov 30 - Mon, Dec 7

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

19h 30m1 stop Vancouver Intl

4:00 pm - 6:22 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 22m1 stop Vancouver Intl

$1,030Air New Zealand

Sun, Oct 18 - Mon, Nov 2

4:37 pm - 8:05 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 28m1 stop Los Angeles

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

20h 45m1 stop Los Angeles

$1,060Qantas Airways

Tue, Oct 27 - Tue, Nov 3

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

22h 23m1 stop Los Angeles

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

22h 02m1 stop Los Angeles

$1,072Qantas Airways

Sun, Oct 18 - Mon, Nov 2

7:10 am - 8:05 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

30h 55m1 stop Los Angeles

2:05 pm - 4:54 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 49m1 stop Dallas/Fort Worth

$1,085American Airlines

Sun, Oct 18 - Mon, Nov 2

4:37 pm - 8:05 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 28m1 stop Los Angeles

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

20h 45m1 stop Los Angeles

$1,085American Airlines