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.

$487 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, Oct 20 - Tue, Oct 27

3:00 pm - 8:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 20m1 stop Vancouver Intl

10:20 am - 2:37 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 17m1 stop Vancouver Intl

$849Air Canada

Tue, Oct 20 - Tue, Oct 27

3:00 pm - 8:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 20m1 stop Vancouver Intl

10:20 am - 2:37 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 17m1 stop Vancouver Intl

$851Air Canada

Sat, Nov 7 - Tue, Nov 10

8:09 pm - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

39h 16m1 stop Los Angeles

2:00 pm - 6:54 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 54m2 stops Nadi Los Angeles

$860Multiple Airlines

Tue, Oct 27 - Wed, Nov 11

8:09 pm - 6:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

40h 16m1 stop Los Angeles

2:00 pm - 6:54 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 54m2 stops Nadi Los Angeles

$876Multiple Airlines

Mon, Feb 1 - Sat, Feb 13

5:32 pm - 9:00 amPDX Portland-SYD Sydney Kingsford Smith

20h 28m1 stop Los Angeles

7:05 am - 5:11 pmSYD Sydney Kingsford Smith-PDX Portland

29h 06m2 stops Auckland Intl Los Angeles

$968Qantas Airways

Mon, Feb 8 - Wed, Feb 24

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

19h 30m1 stop Vancouver Intl

11:20 am - 9:27 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

17h 07m1 stop Vancouver Intl

$1,000Air New Zealand

Mon, Feb 8 - Tue, Feb 23

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

$1,000Air New Zealand

Tue, Feb 23 - Tue, Mar 16

5:40 pm - 8:50 pmPDX Portland-SYD Sydney Kingsford Smith

32h 10m2 stops Los Angeles Auckland Intl

11:20 am - 5:20 pmSYD Sydney Kingsford Smith-PDX Portland

24h 00m1 stop Los Angeles

$1,012Qantas Airways

Tue, Oct 27 - Mon, Nov 9

2:30 pm - 7:30 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 00m1 stop Los Angeles

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

21h 00m1 stop Los Angeles

$1,060Delta

Sun, Oct 25 - Wed, Nov 11

5:45 pm - 7:30 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 45m1 stop Los Angeles

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

18h 25m1 stop Los Angeles

$1,060Delta

Recent last minute flight deals from Washington to Sydney

Tue, Sep 8 - Wed, Sep 30

10:50 am - 7:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

27h 30m1 stop Vancouver Intl

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

26h 12m1 stop Vancouver Intl

$901Air Canada

Tue, Sep 8 - Tue, Sep 22

3:00 pm - 7:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 20m1 stop Vancouver Intl

9:20 am - 10:05 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

17h 45m1 stop Vancouver Intl

$905Air Canada

Tue, Sep 8 - Tue, Sep 22

10:50 am - 7:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

27h 30m1 stop Vancouver Intl

6:00 am - 10:05 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 05m2 stops Brisbane Vancouver Intl

$916Multiple Airlines

Tue, Sep 8 - Wed, Sep 30

5:50 am - 7:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

32h 30m1 stop Vancouver Intl

9:20 am - 10:47 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

30h 27m1 stop Vancouver Intl

$1,000Air New Zealand

Tue, Sep 8 - Sun, Sep 20

3:00 pm - 7:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 20m1 stop Vancouver Intl

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

26h 12m1 stop Vancouver Intl

$1,047Air New Zealand

Tue, Sep 8 - Wed, Sep 30

5:50 am - 10:40 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

35h 50m2 stops Vancouver Intl Brisbane

6:30 am - 10:47 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

33h 17m2 stops Brisbane Vancouver Intl

$1,117Multiple Airlines

Fri, Sep 11 - Thu, Sep 17

3:21 pm - 6:50 amPDX Portland-SYD Sydney Kingsford Smith

22h 29m2 stops Seattle/Tacoma Intl Los Angeles

9:15 am - 6:16 pmSYD Sydney Kingsford Smith-PDX Portland

26h 01m2 stops Los Angeles Salt Lake City

$1,523Delta

Wed, Sep 9 - Wed, Sep 16

3:21 pm - 6:50 amPDX Portland-SYD Sydney Kingsford Smith

22h 29m2 stops Seattle/Tacoma Intl Los Angeles

9:15 am - 11:40 pmSYD Sydney Kingsford Smith-PDX Portland

31h 25m2 stops Los Angeles Salt Lake City

$1,523Delta

Wed, Sep 9 - Wed, Sep 16

10:50 am - 7:00 amPDX Portland-SYD Sydney Kingsford Smith

27h 10m2 stops Denver Intl Los Angeles

9:30 am - 6:19 pmSYD Sydney Kingsford Smith-PDX Portland

25h 49m3 stops Los Angeles Denver Intl San Francisco

$1,523United Airlines

Thu, Sep 10 - Wed, Sep 23

5:02 pm - 7:30 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

45h 28m2 stops Los Angeles Melbourne

9:50 pm - 10:40 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

41h 50m2 stops Brisbane Los Angeles

$1,951Qantas Airways

Useful Info

Low season	May
High season	December
Cheapest flight	$487

Best time to beat the crowds with an average 9% drop in price.

Most popular time to fly with an average 34% 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.