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 on average. Another popular route from State of Washington to Sydney is flying from Spokane to Sydney, which will take roughly 18h 23m. 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?

Air Canada, 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 29% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 10 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 May 2026, there are 10 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.

$469 Cheap Flights from Washington to Sydney in 2026

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One-way

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7:20 pm - 7:20 am

SEA

SYD

19h 00m

1 stop

9:20 am - 10:05 am

SYD

SEA

17h 45m

1 stop

$1,012Air Canada

Tue, Jun 2 - Tue, Jun 9

2:55 pm - 7:20 am

SEA

SYD

23h 25m

1 stop

6:00 am - 10:05 am

SYD

SEA

21h 05m

2 stops

$1,032Multiple Airlines

Tue, May 26 - Tue, Jun 2

5:45 am - 7:20 am

SEA

SYD

32h 35m

1 stop

9:20 am - 6:30 pm

SYD

SEA

26h 10m

1 stop

$1,046Air Canada

Wed, Jun 3 - Mon, Jun 15

10:45 am - 7:10 pm

SEA

SYD

39h 25m

2 stops

11:45 am - 6:30 pm

SYD

SEA

23h 45m

2 stops

$1,047ANA

Wed, Jun 3 - Mon, Jun 15

7:20 pm - 10:55 am

SEA

SYD

22h 35m

2 stops

9:20 am - 6:30 pm

SYD

SEA

26h 10m

1 stop

$1,052Multiple Airlines

Wed, Jun 3 - Mon, Jun 15

6:40 pm - 7:05 am

SEA

SYD

19h 25m

1 stop

5:50 pm - 9:49 pm

SYD

SEA

20h 59m

1 stop

$1,075Qantas Airways

Mon, May 18 - Wed, Jun 3

12:51 pm - 7:05 am

GEG

SYD

25h 14m

2 stops

12:00 pm - 8:43 pm

SYD

GEG

25h 43m

1 stop

$1,093American Airlines

Mon, Jun 1 - Sun, Jun 14

5:41 am - 6:55 am

GEG

SYD

32h 14m

1 stop

12:00 pm - 12:01 pm

SYD

GEG

41h 01m

1 stop

$1,094American Airlines

Mon, Jun 1 - Sun, Jun 14

7:00 am - 7:05 am

GEG

SYD

31h 05m

1 stop

10:10 am - 1:17 pm

SYD

GEG

21h 07m

1 stop

$1,124Alaska Airlines

Tue, Sep 8 - Thu, Oct 8

2:51 pm - 8:00 am

GEG

SYD

23h 09m

1 stop

7:15 pm - 8:55 pm

SYD

GEG

44h 40m

2 stops

$1,137Qantas Airways

Thu, Oct 29 - Mon, Nov 2

ANA flights from State of Washington to Sydney

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

ANA

Jun 3

SEA10:45 amSeattle/Tacoma Intl

39h 25m

2 stops

SYD7:10 pmSydney Kingsford Smith

Jun 15

SYD11:45 amSydney Kingsford Smith

23h 45m

2 stops

SEA6:30 pmSeattle/Tacoma Intl

$1,047

ANA

May 11

SEA4:30 pmSeattle/Tacoma Intl

23h 55m

1 stop

SYD9:25 amSydney Kingsford Smith

May 31

SYD8:55 pmSydney Kingsford Smith

38h 35m

2 stops

SEA6:30 pmSeattle/Tacoma Intl

$1,081

ANA

Jun 7

SEA4:30 pmSeattle/Tacoma Intl

33h 40m

1 stop

SYD7:10 pmSydney Kingsford Smith

Jun 14

SYD8:55 pmSydney Kingsford Smith

34h 30m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

$1,117

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 10

SEA2:03 pmSeattle/Tacoma Intl

24h 02m

2 stops

SYD7:05 amSydney Kingsford Smith

Jun 17

SYD9:10 amSydney Kingsford Smith

21h 47m

1 stop

SEA1:57 pmSeattle/Tacoma Intl

$1,089

American Airlines

May 10

SEA6:40 pmSeattle/Tacoma Intl

19h 50m

1 stop

SYD7:30 amSydney Kingsford Smith

May 24

SYD9:10 amSydney Kingsford Smith

29h 39m

1 stop

SEA9:49 pmSeattle/Tacoma Intl

$1,092

American Airlines

Jun 1

GEG12:51 pmSpokane

25h 14m

2 stops

SYD7:05 amSydney Kingsford Smith

Jun 14

SYD12:00 pmSydney Kingsford Smith

25h 43m

1 stop

GEG8:43 pmSpokane

$1,093

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Tue 6/2

7:20 pm-7:20 am

1 stop19h 00m

Sydney Kingsford Smith

Tue 6/9

9:20 am-10:05 am

1 stop17h 45m

$1,012

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Tue 5/26

2:55 pm-7:20 am

1 stop23h 25m

Sydney Kingsford Smith

Tue 6/2

6:00 am-10:05 am

2 stops21h 05m

$1,032

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 6/3

5:45 am-7:20 am

1 stop32h 35m

Sydney Kingsford Smith

Mon 6/15

9:20 am-6:30 pm

1 stop26h 10m

$1,046

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 6/3

10:45 am-7:10 pm

2 stops39h 25m

Sydney Kingsford Smith

Mon 6/15

11:45 am-6:30 pm

2 stops23h 45m

$1,047

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 6/3

7:20 pm-10:55 am

2 stops22h 35m

Sydney Kingsford Smith

Mon 6/15

9:20 am-6:30 pm

1 stop26h 10m

$1,052

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 5/18

6:40 pm-7:05 am

1 stop19h 25m

Sydney Kingsford Smith

Wed 6/3

5:50 pm-9:49 pm

1 stop20h 59m

$1,075

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 6/1

12:51 pm-7:05 am

2 stops25h 14m

Sydney Kingsford Smith

Sun 6/14

12:00 pm-8:43 pm

1 stop25h 43m

$1,093

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 6/1

5:41 am-6:55 am

1 stop32h 14m

Sydney Kingsford Smith

Sun 6/14

12:00 pm-12:01 pm

1 stop41h 01m

$1,094

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Tue 9/8

7:00 am-7:05 am

1 stop31h 05m

Sydney Kingsford Smith

Thu 10/8

10:10 am-1:17 pm

1 stop21h 07m

$1,124

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 10/29

2:51 pm-8:00 am

1 stop23h 09m

Sydney Kingsford Smith

Mon 11/2

7:15 pm-8:55 pm

2 stops44h 40m

$1,137

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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

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Other information

What is the cheapest month to fly to Sydney?

In general, February 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 $142. If you are unable to visit Sydney during the month of February, then departing from State of Washington during the month October is also very affordable. Most momondo users find prices during this month for around $562.

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 $1,068 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 $900 on momondo.

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

You could potentially save up to 37% 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 30m
Direct flights	None

The fastest flight from State of Washington to Sydney takes 17h 30m

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

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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 updated daily.
How many operators does momondo search for flights from Washington to Sydney Kingsford Smith Airport?
As of May 2026, there are 10 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 8.3 1,207 reviews	Search ANA flights
Alaska Airlines	PriceFrom $591	Free Cancellation	Rating 7.9 12,349 reviews	Search Alaska Airlines flights
Air Canada	PriceFrom $778	Free Cancellation	Rating 7.1 11,008 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $789	Free Cancellation	Rating 7.5 1,033 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $804	Free Cancellation	Rating 7.1 11,670 reviews	Search American Airlines flights
Hawaiian Airlines	PriceFrom $813	Free Cancellation	Rating 7.8 2,837 reviews	Search Hawaiian Airlines flights
United Airlines	PriceFrom $831	Free Cancellation	Rating 7.4 9,693 reviews	Search United Airlines flights
Delta	PriceFrom $842	Free Cancellation	Rating 7.9 8,457 reviews	Search Delta flights
Air New Zealand	PriceFrom $947	Free Cancellation	Rating 8.0 640 reviews	Search Air New Zealand flights
Alaska Airlines	PriceFrom $1,126	Free Cancellation	Rating 0.0	Search Alaska Airlines flights

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

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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 $469

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 6/5. 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

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

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

What airlines fly to Sydney?

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Cheap State of Washington to Sydney flight deals and tips

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An easier way to manage your Sydney trip

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