How long does it take to fly to Sydney?

Flight times from State of Washington to Sydney vary, but if you’re flying out of Seattle and flying into Sydney (one of the most popular routes), then the duration is 17h 45m on average. Another popular route from State of Washington to Sydney is flying from Spokane to Sydney, which will take roughly 18h 11m. Keep in mind that layovers or delays could extend your travel time.

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

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

What airlines fly to Sydney?

United Airlines, Air Canada and Alaska Airlines are the top three most popular airlines that fly to Sydney from State of Washington according to our data. United Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 9 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

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 updated daily.

How many operators does momondo search for flights from Washington to Sydney Kingsford Smith Airport?

As of January 2026, there are 9 operators available to choose from for flights from Washington to Sydney Kingsford Smith Airport.

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 layovers 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 license, 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.

$414 Cheap Flights from Washington to Sydney in 2026

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4:30 pm - 7:15 pm

SEA

SYD

33h 45m

1 stop

11:50 am - 6:30 pm

SYD

SEA

23h 40m

2 stops

$796ANA

Wed, May 6 - Wed, May 27

4:30 pm - 7:15 pm

SEA

SYD

33h 45m

1 stop

8:55 pm - 2:25 pm

SYD

SEA

34h 30m

1 stop

$802ANA

Mon, May 25 - Sun, May 31

4:30 pm - 9:25 am

SEA

SYD

23h 55m

1 stop

11:50 am - 8:48 pm

SYD

SEA

25h 58m

2 stops

$853ANA

Sun, May 17 - Thu, May 28

5:50 pm - 12:35 pm

SEA

SYD

24h 45m

2 stops

6:00 am - 11:40 pm

SYD

SEA

35h 40m

2 stops

$893Multiple Airlines

Wed, Mar 11 - Mon, Mar 23

4:50 pm - 12:35 pm

SEA

SYD

24h 45m

2 stops

2:00 pm - 8:58 pm

SYD

SEA

24h 58m

2 stops

$939Multiple Airlines

Fri, Mar 6 - Mon, Mar 9

3:45 pm - 6:10 am

GEG

SYD

19h 25m

1 stop

1:05 pm - 4:54 pm

SYD

GEG

21h 49m

1 stop

$969Qantas Airways

Tue, Mar 3 - Tue, Mar 10

1:07 pm - 6:55 am

GEG

SYD

24h 48m

1 stop

12:00 pm - 8:47 pm

SYD

GEG

25h 47m

1 stop

$970Qantas Airways

Fri, Jul 3 - Tue, Jul 7

1:07 pm - 6:55 am

GEG

SYD

24h 48m

1 stop

12:00 pm - 8:47 pm

SYD

GEG

25h 47m

1 stop

$973American Airlines

Tue, Jun 16 - Wed, Jun 24

11:10 pm - 8:00 am

SEA

SYD

39h 50m

1 stop

10:15 am - 8:05 pm

SYD

SEA

26h 50m

1 stop

$973Philippine Airlines

Thu, May 14 - Thu, May 28

6:00 am - 6:55 am

GEG

SYD

29h 55m

1 stop

5:45 pm - 11:14 pm

SYD

GEG

23h 29m

2 stops

$976American Airlines

Tue, Mar 3 - Tue, Mar 10

United Airlines flights from State of Washington to Sydney

Our best United Airlines deals on State of Washington to Sydney flight tickets

United Airlines

Feb 1

SEA12:25 pmSeattle/Tacoma Intl

25h 40m

2 stops

SYD9:05 amSydney Kingsford Smith

Feb 9

SYD11:50 amSydney Kingsford Smith

25h 36m

2 stops

SEA6:26 pmSeattle/Tacoma Intl

$1,181

United Airlines

May 13

PSC1:39 pmPasco Tri Cities

24h 16m

1 stop

SYD6:55 amSydney Kingsford Smith

May 17

SYD10:20 amSydney Kingsford Smith

18h 55m

1 stop

PSC12:15 pmPasco Tri Cities

$1,217

United Airlines

Mar 15

PSC3:05 pmPasco Tri Cities

21h 15m

1 stop

SYD6:20 amSydney Kingsford Smith

Mar 22

SYD12:10 pmSydney Kingsford Smith

17h 26m

1 stop

PSC11:36 amPasco Tri Cities

$1,218

American Airlines flights from State of Washington to Sydney

Our best American Airlines deals on State of Washington to Sydney flight tickets

American Airlines

Jun 16

GEG1:07 pmSpokane

24h 48m

1 stop

SYD6:55 amSydney Kingsford Smith

Jun 24

SYD12:00 pmSydney Kingsford Smith

25h 47m

1 stop

GEG8:47 pmSpokane

$973

American Airlines

Mar 3

GEG6:00 amSpokane

29h 55m

1 stop

SYD6:55 amSydney Kingsford Smith

Mar 10

SYD5:45 pmSydney Kingsford Smith

23h 29m

2 stops

GEG11:14 pmSpokane

$976

American Airlines

Jul 3

GEG3:00 pmSpokane

23h 30m

2 stops

SYD7:30 amSydney Kingsford Smith

Jul 7

SYD5:50 pmSydney Kingsford Smith

22h 16m

2 stops

GEG11:06 pmSpokane

$977

Fly from

Fly to

Route

Depart

Return

Price

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 5/6

4:30 pm-7:15 pm

1 stop33h 45m

Sydney Kingsford Smith

Wed 5/27

11:50 am-6:30 pm

2 stops23h 40m

$796

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 5/25

4:30 pm-7:15 pm

1 stop33h 45m

Sydney Kingsford Smith

Sun 5/31

8:55 pm-2:25 pm

1 stop34h 30m

$802

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 5/17

4:30 pm-9:25 am

1 stop23h 55m

Sydney Kingsford Smith

Thu 5/28

11:50 am-8:48 pm

2 stops25h 58m

$853

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 3/11

5:50 pm-12:35 pm

2 stops24h 45m

Sydney Kingsford Smith

Mon 3/23

6:00 am-11:40 pm

2 stops35h 40m

$893

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Fri 3/6

4:50 pm-12:35 pm

2 stops24h 45m

Sydney Kingsford Smith

Mon 3/9

2:00 pm-8:58 pm

2 stops24h 58m

$939

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 3/3

3:45 pm-6:10 am

1 stop19h 25m

Sydney Kingsford Smith

Tue 3/10

1:05 pm-4:54 pm

1 stop21h 49m

$969

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Fri 7/3

1:07 pm-6:55 am

1 stop24h 48m

Sydney Kingsford Smith

Tue 7/7

12:00 pm-8:47 pm

1 stop25h 47m

$970

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 6/16

1:07 pm-6:55 am

1 stop24h 48m

Sydney Kingsford Smith

Wed 6/24

12:00 pm-8:47 pm

1 stop25h 47m

$973

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Thu 5/14

11:10 pm-8:00 am

1 stop39h 50m

Sydney Kingsford Smith

Thu 5/28

10:15 am-8:05 pm

1 stop26h 50m

$973

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 3/3

6:00 am-6:55 am

1 stop29h 55m

Sydney Kingsford Smith

Tue 3/10

5:45 pm-11:14 pm

2 stops23h 29m

$976

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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?

In general, August is the cheapest month to fly from State of Washington to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $846. If you are unable to visit Sydney during the month of August, then departing from State of Washington during the month September is also very affordable. Most momondo users find prices during this month for around $860.

How far in advance should I book a flight 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 $1,055 when searching weeks out. 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 $876 on momondo.

Can stopping save me money on State of Washington to Sydney flights?

You could potentially save up to 27% on your flight if you consider stops on a State of Washington to Sydney flight.

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

Fastest flight time	17h 45m
Direct flights	None

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

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 updated daily.
How many operators does momondo search for flights from Washington to Sydney Kingsford Smith Airport?
As of January 2026, there are 9 operators available to choose from for flights from Washington to Sydney Kingsford Smith Airport.
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 layovers 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 license, 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.

Best airlines flying from State of Washington to Sydney

Compare and see reviews for airlines that fly from State of Washington to Sydney with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $491	Free Cancellation	Rating 7.9 8,128 reviews	Search Delta flights
ANA	PriceFrom $583	Free Cancellation	Rating 8.4 1,078 reviews	Search ANA flights
Alaska Airlines	PriceFrom $591	Free Cancellation	Rating 8.0 11,805 reviews	Search Alaska Airlines flights
Philippine Airlines	PriceFrom $758	Free Cancellation	Rating 7.3 957 reviews	Search Philippine Airlines flights
Air Canada	PriceFrom $779	Free Cancellation	Rating 7.1 10,667 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $789	Free Cancellation	Rating 7.5 981 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $804	Free Cancellation	Rating 7.2 11,206 reviews	Search American Airlines flights
Hawaiian Airlines	PriceFrom $812	Free Cancellation	Rating 7.8 2,830 reviews	Search Hawaiian Airlines flights
United Airlines	PriceFrom $830	Free Cancellation	Rating 7.4 9,215 reviews	Search United Airlines flights

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Randwick

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Coogee

Manly

Lithgow

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Cronulla

Charlestown

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington to Sydney. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Sydney from Washington with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from Washington.

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

Price alerts on flights to Sydney from Washington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Washington to Sydney from $414

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Sydney departing on 2/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

What is the cheapest month to fly to Sydney?

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

Can stopping save me money on State of Washington to Sydney flights?

You could potentially save up to 27% on your flight if you consider stops on a State of Washington to Sydney flight.

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

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

What airlines fly to Sydney?

How long does it take to fly to Sydney?

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

Fastest flight time

Direct flights

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

How many operators does momondo search for flights from Washington to Sydney Kingsford Smith Airport?

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

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

Best airlines flying from State of Washington to Sydney

Compare and see reviews for airlines that fly from State of Washington to Sydney with momondo

Traveling to a place near Sydney?

Why use momondo?

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

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

How can momondo help me find flights 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?

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Daily price changes in your inbox - only with Price Alerts.

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Airports servicing New South Wales