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

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

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 18h 35m on average. Another popular route from State of Washington to Sydney is flying from Spokane to Sydney, which will take roughly 20h 10m. Keep in mind that layovers or delays could extend your travel time.

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 8 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 November 2025, there are 8 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.

$379 Cheap Flights from Washington to Sydney in 2025/26

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Cheap round-trip flights

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9:30 pm - 9:50 amSEA-SYD

41h 20m1 stop

11:35 am - 7:40 pmSYD-SEA

26h 05m1 stop

$848Philippine Airlines

Find Deal

Fri, Mar 6 - Wed, Mar 18

5:39 pm - 9:20 amPDX-SYD

21h 41m2 stops

9:25 pm - 8:38 pmSYD-PDX

17h 13m1 stop

$854Multiple Airlines

Find Deal

Mon, Mar 9 - Tue, Mar 24

1:10 pm - 8:30 amGEG-SYD

24h 20m2 stops

10:40 am - 2:53 pmSYD-GEG

23h 13m2 stops

$882Delta

Find Deal

Wed, Nov 19 - Wed, Nov 26

10:30 am - 9:20 amPDX-SYD

28h 50m2 stops

9:25 pm - 8:38 pmSYD-PDX

17h 13m1 stop

$901Qantas Airways

Find Deal

Mon, Mar 9 - Tue, Mar 24

9:30 pm - 9:50 amSEA-SYD

41h 20m1 stop

1:55 pm - 2:16 pmSYD-SEA

42h 21m2 stops

$908Multiple Airlines

Find Deal

Tue, Mar 3 - Tue, Mar 17

2:38 pm - 9:00 amGEG-SYD

23h 22m1 stop

2:05 pm - 8:55 pmSYD-GEG

25h 50m1 stop

$913Qantas Airways

Find Deal

Wed, Nov 19 - Wed, Nov 26

12:44 pm - 7:00 amPSC-SYD

47h 16m2 stops

2:00 pm - 8:50 pmSYD-PSC

25h 50m2 stops

$915United Airlines

Find Deal

Thu, Feb 12 - Sun, Feb 22

5:05 am - 9:15 amGEG-SYD

33h 10m2 stops

10:20 am - 9:18 pmSYD-GEG

28h 58m2 stops

$922United Airlines

Find Deal

Wed, Dec 31 - Tue, Mar 10

6:50 am - 7:25 amGEG-SYD

29h 35m1 stop

2:05 pm - 9:13 pmSYD-GEG

26h 08m1 stop

$943Qantas Airways

Find Deal

Wed, Feb 11 - Tue, Feb 17

6:00 am - 6:50 amPSC-SYD

29h 50m2 stops

10:40 am - 11:08 pmSYD-PSC

31h 28m2 stops

$1,082Delta

Find Deal

Thu, Feb 12 - Sun, Feb 22

Philippine Airlines flights from State of Washington to Sydney

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

Philippine Airlines

Mar 6

SEA9:30 pmSeattle/Tacoma Intl

41h 20m

1 stop

SYD9:50 amSydney Kingsford Smith

Mar 18

SYD11:35 amSydney Kingsford Smith

26h 05m

1 stop

SEA7:40 pmSeattle/Tacoma Intl

$848

Find similar

Philippine Airlines

Mar 5

SEA9:30 pmSeattle/Tacoma Intl

41h 20m

1 stop

SYD9:50 amSydney Kingsford Smith

Mar 18

SYD11:35 amSydney Kingsford Smith

26h 05m

1 stop

SEA7:40 pmSeattle/Tacoma Intl

$966

Find similar

Philippine Airlines

Apr 24

SEA11:05 pmSeattle/Tacoma Intl

41h 40m

1 stop

SYD9:45 amSydney Kingsford Smith

May 24

SYD11:35 amSydney Kingsford Smith

25h 35m

1 stop

SEA8:10 pmSeattle/Tacoma Intl

$986

Find similar

Delta flights from State of Washington to Sydney

Our best Delta deals on State of Washington to Sydney flight tickets

Delta

Nov 19

GEG1:10 pmSpokane

24h 20m

2 stops

SYD8:30 amSydney Kingsford Smith

Nov 26

SYD10:40 amSydney Kingsford Smith

23h 13m

2 stops

GEG2:53 pmSpokane

$882

Find similar

Delta

Feb 12

PSC6:00 amPasco Tri Cities

29h 50m

2 stops

SYD6:50 amSydney Kingsford Smith

Feb 22

SYD10:40 amSydney Kingsford Smith

31h 28m

2 stops

PSC11:08 pmPasco Tri Cities

$1,082

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Fri 3/6

9:30 pm-9:50 am

1 stop41h 20m

Sydney Kingsford Smith

Wed 3/18

11:35 am-7:40 pm

1 stop26h 05m

$848

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 3/9

5:39 pm-9:20 am

2 stops21h 41m

Sydney Kingsford Smith

Tue 3/24

9:25 pm-8:38 pm

1 stop17h 13m

$854

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Wed 11/19

1:10 pm-8:30 am

2 stops24h 20m

Sydney Kingsford Smith

Wed 11/26

10:40 am-2:53 pm

2 stops23h 13m

$882

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 3/9

10:30 am-9:20 am

2 stops28h 50m

Sydney Kingsford Smith

Tue 3/24

9:25 pm-8:38 pm

1 stop17h 13m

$901

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Tue 3/3

9:30 pm-9:50 am

1 stop41h 20m

Sydney Kingsford Smith

Tue 3/17

1:55 pm-2:16 pm

2 stops42h 21m

$908

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Wed 11/19

2:38 pm-9:00 am

1 stop23h 22m

Sydney Kingsford Smith

Wed 11/26

2:05 pm-8:55 pm

1 stop25h 50m

$913

PascoSydney

PSC - SYD

PSCSYD

Pasco Tri Cities

Thu 2/12

12:44 pm-7:00 am

2 stops47h 16m

Sydney Kingsford Smith

Sun 2/22

2:00 pm-8:50 pm

2 stops25h 50m

$915

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Wed 12/31

5:05 am-9:15 am

2 stops33h 10m

Sydney Kingsford Smith

Tue 3/10

10:20 am-9:18 pm

2 stops28h 58m

$922

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Wed 2/11

6:50 am-7:25 am

1 stop29h 35m

Sydney Kingsford Smith

Tue 2/17

2:05 pm-9:13 pm

1 stop26h 08m

$943

PascoSydney

PSC - SYD

PSCSYD

Pasco Tri Cities

Thu 2/12

6:00 am-6:50 am

2 stops29h 50m

Sydney Kingsford Smith

Sun 2/22

10:40 am-11:08 pm

2 stops31h 28m

$1,082

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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 $895.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from State of Washington to Sydney is on a Tuesday when prices can be found for as low as $1,078. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $1,156.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the evening. momondo users have found flights departing from State of Washington to Sydney in the evening for as low as $1,078. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the morning, with an average ticket price of $1,152. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 $1,061 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 $870 on momondo.

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

You could potentially save up to 28% 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

Direct flights	None

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 November 2025, there are 8 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
ANA	PriceFrom $583	Free Cancellation	Rating 8.4 1,006 reviews	Search ANA flights
Alaska Airlines	PriceFrom $591	Free Cancellation	Rating 8.0 11,309 reviews	Search Alaska Airlines flights
Air Canada	PriceFrom $779	Free Cancellation	Rating 7.1 10,457 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $789	Free Cancellation	Rating 7.5 937 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $804	Free Cancellation	Rating 7.2 11,048 reviews	Search American Airlines flights
Hawaiian Airlines	PriceFrom $820	Free Cancellation	Rating 7.8 2,809 reviews	Search Hawaiian Airlines flights
United Airlines	PriceFrom $832	Free Cancellation	Rating 7.4 9,014 reviews	Search United Airlines flights
Delta	PriceFrom $842	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights

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Katoomba

Wollongong

Randwick

Coogee

Cronulla

Manly

Penrith

Leura

Lithgow

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Terrigal

Swansea

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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 $392

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 11/27. 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

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

What is the cheapest month to fly to Sydney?

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from State of Washington to Sydney is on a Tuesday when prices can be found for as low as $1,078. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $1,156.

What is the cheapest time of day to depart on your flight 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 28% 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?

Philippine Airlines, Air Canada, and Qantas Airways 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

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.

Get notified when prices go down

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

Find better results for your trip to Australia

Airports servicing New South Wales