How long does it take to fly to Sydney?

If you’re flying from a popular airport in State of Washington, such as Seattle or Spokane, and flying into Sydney, then you can expect flight times to average 17h 45m and 22h 50m, respectively.

What is the cheapest airline that flies from Washington to Sydney Kingsford Smith?

Philippine Airlines, Qantas Airways, and United Airlines are the most popular carriers operating from Washington to Sydney Kingsford Smith

When did momondo last update prices for flights from Washington to Sydney Kingsford Smith Airport?

Prices for flights from Washington to Sydney Kingsford Smith Airport are refreshed on a daily basis.

How old do you have to be to fly from Washington to Sydney Kingsford Smith Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$693 Cheap Flights from Washington to Sydney in 2026/27

Find the cheapest flights from Washington to Sydney

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

19:05 - 08:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 30m1 stop Vancouver Intl

11:20 - 14:37SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 17m1 stop Vancouver Intl

$1,288Air Canada

Sun, 25 Oct - Sun, 8 Nov

19:05 - 08:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 30m1 stop Vancouver Intl

11:20 - 14:37SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 17m1 stop Vancouver Intl

$1,352Air Canada

Sun, 25 Oct - Sun, 8 Nov

15:15 - 09:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 20m1 stop Vancouver Intl

11:20 - 14:37SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 17m1 stop Vancouver Intl

$1,357Air Canada

Mon, 1 Feb - Mon, 8 Feb

19:05 - 08:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 30m1 stop Vancouver Intl

11:20 - 14:37SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 17m1 stop Vancouver Intl

$1,358Air Canada

Sun, 25 Oct - Sun, 8 Nov

15:15 - 09:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 20m1 stop Vancouver Intl

11:20 - 09:32SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

17h 12m1 stop Vancouver Intl

$1,359Air Canada

Tue, 9 Feb - Sun, 28 Feb

19:05 - 08:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 30m1 stop Vancouver Intl

11:20 - 14:37SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 17m1 stop Vancouver Intl

$1,362Air Canada

Sun, 25 Oct - Sun, 8 Nov

15:15 - 09:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 20m1 stop Vancouver Intl

16:00 - 21:57SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

24h 57m1 stop Vancouver Intl

$1,367Air Canada

Sat, 21 Nov - Mon, 14 Dec

19:05 - 08:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 30m1 stop Vancouver Intl

08:30 - 09:32SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

20h 02m2 stops Brisbane Vancouver Intl

$1,374Multiple Airlines

Sun, 25 Oct - Sun, 8 Nov

19:05 - 14:40SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 35m2 stops Vancouver Intl Brisbane

11:20 - 18:22SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 02m1 stop Vancouver Intl

$1,381Air Canada

Sun, 8 Nov - Sun, 15 Nov

15:15 - 08:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 20m1 stop Vancouver Intl

06:20 - 09:32SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 12m2 stops Brisbane Vancouver Intl

$1,384Multiple Airlines

Sun, 25 Oct - Sun, 8 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

07:20 - 18:50SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

18h 30m1 stop Honolulu

20:45 - 06:04SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

27h 19m1 stop Honolulu

$1,815Alaska Airlines

Thu, 1 Oct - Sun, 11 Oct

23:10 - 08:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

39h 50m1 stop Manila Ninoy Aquino Intl

11:15 - 20:05SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 50m1 stop Manila Ninoy Aquino Intl

$1,832Philippine Airlines

Wed, 30 Sep - Thu, 8 Oct

23:10 - 08:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

39h 50m1 stop Manila Ninoy Aquino Intl

11:15 - 07:08SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

37h 53m2 stops Manila Ninoy Aquino Intl Vancouver Intl

$1,910Multiple Airlines

Sun, 27 Sep - Wed, 7 Oct

23:10 - 08:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

39h 50m1 stop Manila Ninoy Aquino Intl

11:15 - 22:47SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

29h 32m2 stops Manila Ninoy Aquino Intl Vancouver Intl

$1,912Multiple Airlines

Sun, 27 Sep - Wed, 7 Oct

07:20 - 18:50SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

18h 30m1 stop Honolulu

20:45 - 21:34SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 49m1 stop Honolulu

$1,915Alaska Airlines

Thu, 1 Oct - Sun, 11 Oct

07:20 - 18:50SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

18h 30m1 stop Honolulu

20:45 - 21:34SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 49m1 stop Honolulu

$1,964Alaska Airlines

Thu, 1 Oct - Sun, 11 Oct

06:49 - 08:40SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

32h 51m2 stops Los Angeles Hong Kong Intl

08:40 - 10:05SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

43h 25m1 stop Hong Kong Intl

$1,989Multiple Airlines

Thu, 1 Oct - Sun, 11 Oct

06:49 - 08:40SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

32h 51m2 stops Los Angeles Hong Kong Intl

08:40 - 10:05SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

43h 25m1 stop Hong Kong Intl

$1,994Multiple Airlines

Thu, 1 Oct - Sun, 11 Oct

06:49 - 08:40SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

32h 51m2 stops Los Angeles Hong Kong Intl

08:40 - 10:05SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

43h 25m1 stop Hong Kong Intl

$1,996Multiple Airlines

Thu, 1 Oct - Sun, 11 Oct

23:10 - 08:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

39h 50m1 stop Manila Ninoy Aquino Intl

11:15 - 20:05SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 50m1 stop Manila Ninoy Aquino Intl

$2,041Philippine Airlines

Thu, 1 Oct - Sun, 11 Oct

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Qantas Airways flights from State of Washington to Sydney

Our best Qantas Airways deals on State of Washington to Sydney flight tickets

Qantas Airways

4 Nov

GEG17:24Spokane

20h 36m

1 stop

SYD09:00Sydney Kingsford Smith

11 Nov

SYD14:05Sydney Kingsford Smith

25h 35m

1 stop

GEG20:40Spokane

$1,446

Qantas Airways

21 Oct

GEG14:51Spokane

23h 14m

1 stop

SYD08:05Sydney Kingsford Smith

3 Dec

SYD14:05Sydney Kingsford Smith

25h 35m

1 stop

GEG20:40Spokane

$1,648

Qantas Airways

7 Nov

GEG17:24Spokane

20h 36m

1 stop

SYD09:00Sydney Kingsford Smith

14 Nov

SYD11:10Sydney Kingsford Smith

20h 12m

1 stop

GEG12:22Spokane

$1,658

Air Canada flights from State of Washington to Sydney

Our best Air Canada deals on State of Washington to Sydney flight tickets

Air Canada

25 Oct

SEA19:05Seattle/Tacoma Intl

19h 30m

1 stop

SYD08:35Sydney Kingsford Smith

8 Nov

SYD11:20Sydney Kingsford Smith

22h 17m

1 stop

SEA14:37Seattle/Tacoma Intl

$1,288

Air Canada

25 Oct

SEA19:05Seattle/Tacoma Intl

19h 30m

1 stop

SYD08:35Sydney Kingsford Smith

8 Nov

SYD11:20Sydney Kingsford Smith

22h 17m

1 stop

SEA14:37Seattle/Tacoma Intl

$1,352

Air Canada

1 Feb

SEA15:15Seattle/Tacoma Intl

23h 20m

1 stop

SYD09:35Sydney Kingsford Smith

8 Feb

SYD11:20Sydney Kingsford Smith

22h 17m

1 stop

SEA14:37Seattle/Tacoma Intl

$1,357

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Sun 25/10

19:05-08:35

1 stop19h 30m

Sydney Kingsford Smith

Sun 8/11

11:20-14:37

1 stop22h 17m

$1,288

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Sun 25/10

19:05-08:35

1 stop19h 30m

Sydney Kingsford Smith

Sun 8/11

11:20-14:37

1 stop22h 17m

$1,352

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Mon 1/2

15:15-09:35

1 stop23h 20m

Sydney Kingsford Smith

Mon 8/2

11:20-14:37

1 stop22h 17m

$1,357

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Sun 25/10

19:05-08:35

1 stop19h 30m

Sydney Kingsford Smith

Sun 8/11

11:20-14:37

1 stop22h 17m

$1,358

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Tue 9/2

15:15-09:35

1 stop23h 20m

Sydney Kingsford Smith

Sun 28/2

11:20-09:32

1 stop17h 12m

$1,359

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Sun 25/10

19:05-08:35

1 stop19h 30m

Sydney Kingsford Smith

Sun 8/11

11:20-14:37

1 stop22h 17m

$1,362

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Sat 21/11

15:15-09:35

1 stop23h 20m

Sydney Kingsford Smith

Mon 14/12

16:00-21:57

1 stop24h 57m

$1,366

Fastest return journey

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Sun 25/10

19:05-08:35

1 stop19h 30m

Sydney Kingsford Smith

Sun 8/11

08:30-09:32

2 stops20h 02m

$1,374

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Sun 8/11

19:05-14:40

2 stops24h 35m

Sydney Kingsford Smith

Sun 15/11

11:20-18:22

1 stop26h 02m

$1,381

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Sun 25/10

15:15-08:35

1 stop23h 20m

Sydney Kingsford Smith

Sun 8/11

06:20-09:32

2 stops22h 12m

$1,384

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Sydney?

The month of August is, on average, the cheapest month to fly to Sydney from State of Washington, with most prices found around $1,144. If you aren’t able to travel to Sydney during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $1,482.

How far in advance should I book a flight from Washington to Sydney?

You are more likely to see cheaper flights to Sydney from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,648 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from State of Washington for as low as $1,438 on momondo.

Cheap State of Washington to Sydney flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Sydney

Best price found	$693
Fastest flight time	17h 45m
Direct flights	None

The best one-way flight to Sydney from State of Washington in the past 72 hours is $693. The best return flight deal from State of Washington to Sydney found on momondo in the last 72 hours is $1,288.

The fastest flight from State of Washington to Sydney takes 17h 45m

There are no direct flights from State of Washington to Sydney. There are no popular flight routes from State of Washington to Sydney.

Search flight deals

Frequently asked questions about flying from Washington to Sydney

When did momondo last update prices for flights from Washington to Sydney Kingsford Smith Airport?
Prices for flights from Washington to Sydney Kingsford Smith Airport are refreshed on a daily basis.
How old do you have to be to fly from Washington to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Parramatta

Terrigal

Wollongong

Katoomba

Penrith

Coogee

Lithgow

Manly

Cronulla

Randwick

Leura

Bondi Beach

Charlestown

Swansea

Newport

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Sydney?

It is quick and easy to find Washington to Sydney flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sydney that suits you.

Can I find flights from Washington to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington to Sydney?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington to Sydney.

I’m not ready to book a flight from Washington to Sydney right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Sydney from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.