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.

$498 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, Oct 25 - Sun, Nov 8

7:05 pm - 8:35 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

$905Air Canada

Sun, Nov 8 - Sun, Nov 15

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

$950Air Canada

Sun, Oct 25 - Sun, Nov 8

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

23h 20m1 stop Vancouver Intl

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

22h 12m2 stops Brisbane Vancouver Intl

$972Multiple Airlines

Sun, Oct 25 - Sun, Nov 8

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

23h 20m1 stop Vancouver Intl

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

22h 12m2 stops Brisbane Vancouver Intl

$974Multiple Airlines

Tue, Oct 27 - Sun, Nov 8

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

$991Air New Zealand

Tue, Oct 27 - Wed, Nov 11

7:05 pm - 8:35 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

$991Air New Zealand

Mon, Oct 26 - Mon, Nov 2

7:08 pm - 9:00 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 52m1 stop Los Angeles

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

20h 50m1 stop Los Angeles

$1,043Qantas Airways

Tue, Nov 24 - Wed, Dec 9

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

18h 45m1 stop San Francisco

11:50 am - 2:23 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 33m1 stop San Francisco

$1,059United Airlines

Sun, Nov 22 - Wed, Dec 9

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

20h 57m1 stop San Francisco

11:50 am - 2:23 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 33m1 stop San Francisco

$1,059United Airlines

Sat, Dec 12 - Tue, Jan 12

3:55 pm - 9:00 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 05m1 stop Los Angeles

9:00 pm - 10:10 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

20h 10m1 stop Las Vegas Harry Reid Intl

$1,088Qantas Airways

Recent last minute flight deals from Washington to Sydney

Thu, Oct 1 - Sun, Oct 11

7:20 am - 6:50 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

18h 30m1 stop Honolulu

8:45 pm - 6:04 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

27h 19m1 stop Honolulu

$1,275Alaska Airlines

Thu, Oct 1 - Sun, Oct 11

11:10 pm - 8:00 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

39h 50m1 stop Manila Ninoy Aquino Intl

11:15 am - 8:05 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 50m1 stop Manila Ninoy Aquino Intl

$1,285Philippine Airlines

Wed, Sep 30 - Thu, Oct 8

11:10 pm - 8:00 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

39h 50m1 stop Manila Ninoy Aquino Intl

11:15 am - 8:05 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 50m1 stop Manila Ninoy Aquino Intl

$1,287Philippine Airlines

Wed, Sep 30 - Mon, Oct 5

9:40 am - 6:50 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 10m2 stops Salt Lake City Los Angeles

10:15 am - 6:36 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 21m2 stops Los Angeles Salt Lake City

$1,648Delta

Wed, Sep 30 - Sat, Oct 3

1:24 pm - 6:50 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 26m2 stops Salt Lake City Los Angeles

9:15 am - 4:50 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

24h 35m2 stops Los Angeles Salt Lake City

$1,671Delta

Wed, Sep 30 - Fri, Oct 2

5:02 pm - 7:05 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 03m1 stop Los Angeles

9:10 am - 10:40 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

30h 30m1 stop Los Angeles

$2,110Qantas Airways

Sat, Oct 3 - Thu, Oct 8

7:55 pm - 10:40 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

44h 45m2 stops Vancouver Intl Auckland Intl

11:55 am - 4:26 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 31m2 stops Auckland Intl Vancouver Intl

$8,506Air New Zealand

Fri, Oct 2 - Tue, Oct 27

4:30 pm - 7:10 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

33h 40m1 stop Tokyo Haneda

9:45 pm - 2:20 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

34h 35m1 stop Tokyo Haneda

$9,729ANA

Fri, Oct 2 - Thu, Oct 22

4:30 pm - 7:10 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

33h 40m1 stop Tokyo Haneda

9:45 pm - 2:25 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

34h 40m1 stop Tokyo Haneda

$9,979ANA

Sat, Oct 3 - Mon, Oct 26

3:00 pm - 10:40 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

25h 40m2 stops Vancouver Intl Auckland Intl

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

24h 32m2 stops Auckland Intl Vancouver Intl

$12,477Air New Zealand

Useful Info

Low season	July
High season	December
Cheapest flight	$498

Best time to beat the crowds but there is an average 4% increase in price.

Most popular time to fly with an average 30% 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.