How long is the flight from State of Washington to Sydney?

There are many flights that can get you from State of Washington to Sydney in 18h 45m. Fly via United Airlines or Delta to get the fastest option. The distance between State of Washington and Sydney is about 12463 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

What are the most popular routes from State of Washington to Sydney?

When deciding which route to take from State of Washington to Sydney, consider Seattle/Tacoma Intl - Sydney Kingsford Smith, Portland - Sydney Kingsford Smith or Spokane - Sydney Kingsford Smith, as they are the most popular.

What is the cheapest time of day to fly from WA to SYD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington to Sydney as you normally would.

What airport do you fly into for flights to Sydney from Washington?

Most people fly into Sydney Kingsford Smith (SYD) if they book a flight to Sydney from Washington. Kingsford Smith is conveniently located just 7.5 km from Sydney’s city centre.

Can I find deals for flights from Washington to Sydney that include hotel bookings?

Yes. In addition to deals on Washington to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Washington to Sydney?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Sydney.

Can I find deals for business class flights from Washington to Sydney?

Yes. Cheapflights offers flight deals from Washington to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$689+ Cheap Flights from Washington to Sydney

Cheap flight deals from Washington to Sydney

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Washington to Sydney
Explore the most affordable flight options available from Washington to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 September 2026.

Sun 25/1019:05 -

1 stop19h 30m

Sun 8/1111:20 -

1 stop22h 17m

Deal found 23/9$1,288

Sun 8/1110:10 -

1 stop28h 25m

Sun 15/1111:20 -

1 stop22h 17m

Deal found 24/9$1,352

Sun 25/1015:15 -

1 stop23h 20m

Sun 8/1106:20 -

2 stops22h 12m

Deal found 24/9$1,384

Mon 26/1015:15 -

1 stop23h 20m

Sun 8/1111:20 -

1 stop26h 02m

Deal found 25/9$1,408

Sun 1/1113:46 -

2 stops24h 14m

Wed 11/1121:25 -

2 stops21h 34m

Deal found 25/9$1,550

Tue 10/1112:26 -

2 stops22h 59m

Tue 17/1111:15 -

2 stops22h 07m

Deal found 26/9$1,552

Mon 26/1012:49 -

1 stop24h 06m

Mon 2/1114:05 -

1 stop25h 35m

Deal found 26/9$1,553

Tue 10/1117:24 -

1 stop20h 36m

Tue 17/1114:05 -

1 stop25h 35m

Deal found 26/9$1,556

Wed 2/1213:49 -

2 stops24h 31m

Wed 16/1211:50 -

1 stop18h 38m

Deal found 23/9$1,560

Mon 26/1012:49 -

1 stop24h 06m

Mon 2/1111:15 -

2 stops24h 24m

Deal found 26/9$1,564

Sun 1/1113:46 -

2 stops24h 14m

Wed 11/1114:05 -

1 stop25h 35m

Deal found 25/9$1,566

Wed 2/1215:26 -

2 stops22h 04m

Tue 15/1210:40 -

2 stops29h 30m

Deal found 27/9$1,570

Best flights from Washington to Sydney
Discover carefully curated flight deals from Washington to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 September 2026.

Sun 22/1119:35 -

1 stop18h 45m

Wed 9/1209:15 -

2 stops31h 06m

Deal found 22/9$1,515

Tue 16/206:30 -

1 stop29h 20m

Tue 8/609:15 -

1 stop21h 52m

Deal found 26/9$1,563

Tue 10/1110:30 -

3 stops24h 55m

Tue 17/1111:15 -

2 stops20h 55m

Deal found 26/9$1,564

Sun 22/1116:17 -

1 stop19h 08m

Thu 10/1213:00 -

2 stops44h 16m

Deal found 22/9$2,342

Sat 31/1001:10 -

1 stop41h 05m

Wed 4/1122:10 -

1 stop39h 00m

Deal found 26/9$2,880

Tue 24/1119:35 -

1 stop18h 45m

Wed 9/1209:15 -

2 stops31h 06m

Deal found 22/9$1,515

Tue 16/213:23 -

2 stops22h 12m

Tue 8/610:20 -

1 stop24h 01m

Deal found 26/9$1,564

Sat 7/1109:42 -

2 stops27h 48m

Sat 14/1110:40 -

2 stops25h 13m

Deal found 23/9$1,714

Wed 2/1212:30 -

1 stop22h 50m

Tue 15/1211:50 -

2 stops28h 35m

Deal found 23/9$1,560

Tue 16/212:36 -

2 stops22h 49m

Wed 9/612:00 -

1 stop25h 43m

Deal found 25/9$1,564

Mon 7/1205:05 -

2 stops33h 00m

Wed 23/1213:20 -

1 stop24h 09m

Deal found 24/9$1,572

Tue 2/214:20 -

2 stops46h 15m

Wed 24/210:35 -

3 stops44h 12m

Deal found 24/9$3,809

Thu 19/1110:50 -

2 stops27h 15m

Mon 7/1211:50 -

1 stop21h 33m

Deal found 22/9$1,586

Mon 23/1113:49 -

2 stops24h 31m

Sun 6/1211:50 -

1 stop18h 38m

Deal found 23/9$1,609

Fri 19/212:30 -

1 stop22h 50m

Mon 8/311:50 -

1 stop18h 34m

Deal found 23/9$1,624

Mon 15/214:20 -

3 stops46h 05m

Mon 8/309:55 -

2 stops44h 40m

Deal found 26/9$3,809

Sun 10/115:00 -

3 stops45h 55m

Sat 30/110:25 -

3 stops45h 40m

Deal found 26/9$4,057

Tue 12/115:30 -

2 stops31h 25m

Sat 30/115:50 -

3 stops46h 33m

Deal found 26/9$4,165

Thu 17/1215:24 -

1 stop22h 56m

Thu 31/1211:20 -

2 stops24h 12m

Deal found 23/9$3,429

Find flight deals from Washington to Sydney

Round-trip from	$1,288
One-way from	$689
Popular in	December
Cheapest in	August
Average price	$1,486

Air Canada
25/10-8/11
2 total stops
41h 47m total
Washington to Sydney

Search Deals

Philippine Airlines
8/3-31/12
1 total stop
41h 20m total
Washington to Sydney

Search Deals

Highest demand for flights based on searches. 17% potential increase in price ($515 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($123 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Mon 26/10

20:35-09:20

1 stop18h 45m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

$776

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Wed 18/11

12:45-09:05

2 stops25h 20m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

$809

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Sun 8/11

22:56-09:20

2 stops39h 24m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

$809

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Mon 7/12

17:18-09:00

1 stop20h 42m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

$817

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Tue 8/12

12:30-09:20

1 stop25h 50m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

$828

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Wed 9/12

13:53-06:25

2 stops45h 32m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

$833

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Thu 22/10

05:00-08:00

2 stops33h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

$865

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Thu 19/11

09:01-06:25

3 stops26h 24m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

$891

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Fri 6/11

08:30-09:20

2 stops29h 50m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

$894

SpokaneSydney

GEG Spokane - SYD Sydney Kingsford Smith

GEGSYD

Spokane

Sat 5/12

12:30-09:20

1 stop25h 50m

Sydney Kingsford Smith

Wed 31/12

00:00-06:00

Nonstop0h 00m

$914

Flights are sorted by cheapest return flights first.

Deals found on 22/9

Showing 1-10 of 35 resultsSorted by cheapest first

Best time to book a flight from Washington to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Washington with our price prediction graph.

SEA-SYD

GEG-SYD

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Sydney

USWA-SYD

SEA-SYD

GEG-SYD

What is the cheapest month to book a flight from State of Washington to Sydney?

Currently, August is the cheapest month in which you can book a flight from State of Washington to Sydney (average of $1,144). Flying from State of Washington to Sydney in December is currently the most expensive (average of $2,598). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from State of Washington to Sydney?

Airfare is below average for this route at the moment.

State of Washington to Sydney flights typically cost between $1,335 and $1,688 in October.
The cheapest return price found within the last 5 days was $1,288 on Air Canada (25 Oct–8 Nov).

How far ahead should I book a flight from State of Washington to Sydney?

To ensure you get the cheapest price possible for a flight from State of Washington to Sydney, you should look to book at least 23 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

What airport do you fly into for flights to Sydney from Washington?
Most people fly into Sydney Kingsford Smith (SYD) if they book a flight to Sydney from Washington. Kingsford Smith is conveniently located just 7.5 km from Sydney’s city centre.
How long is the flight from State of Washington to Sydney?
There are many flights that can get you from State of Washington to Sydney in 18h 45m. Fly via United Airlines or Delta to get the fastest option. The distance between State of Washington and Sydney is about 12463 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the most popular routes from State of Washington to Sydney?
When deciding which route to take from State of Washington to Sydney, consider Seattle/Tacoma Intl - Sydney Kingsford Smith, Portland - Sydney Kingsford Smith or Spokane - Sydney Kingsford Smith, as they are the most popular.
Can I find deals for flights from Washington to Sydney that include hotel bookings?
Yes. In addition to deals on Washington to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Washington to Sydney?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Sydney.
Can I find deals for business class flights from Washington to Sydney?
Yes. Cheapflights offers flight deals from Washington to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from State of Washington to Sydney?
Currently, August is the cheapest month in which you can book a flight from State of Washington to Sydney (average of $1,144). Flying from State of Washington to Sydney in December is currently the most expensive (average of $2,598). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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How does Cheapflights help users find flights from Washington to Sydney?

Deals for Washington to Sydney flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Washington to Sydney?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Sydney from Washington.

Can Cheapflights find flights from Washington to Sydney with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Washington to Sydney, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Washington to Sydney become cheaper?

Yes, Cheapflights offers price alerts on Washington to Sydney flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Washington to Sydney from $689

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Washington to Sydney

Cheapest flights from Washington to SydneyExplore the most affordable flight options available from Washington to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 September 2026.

Explore the most affordable flight options available from Washington to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 September 2026.

Best flights from Washington to SydneyDiscover carefully curated flight deals from Washington to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 September 2026.

Discover carefully curated flight deals from Washington to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 September 2026.

Last-minute flights from Washington to SydneyDiscover last-minute flight deals from Washington to Sydney. Data last updated 27 September 2026 and is based on user searches.

Discover last-minute flight deals from Washington to Sydney. Data last updated 27 September 2026 and is based on user searches.

One-way flights from Washington to SydneySearch for one-way flight options from Washington to Sydney. Find affordable one-way fares based on user searches. Data last updated 27 September 2026.

Search for one-way flight options from Washington to Sydney. Find affordable one-way fares based on user searches. Data last updated 27 September 2026.

Find flight deals from Washington to Sydney

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Use the filters below to find and compare flights from Washington to Sydney that are best for you.

Best time to book a flight from Washington to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Washington with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from State of Washington to Sydney?

How much does it cost for a return flight from State of Washington to Sydney?

Airfare is below average for this route at the moment.

State of Washington to Sydney flights typically cost between $1,335 and $1,688 in October.The cheapest return price found within the last 5 days was $1,288 on Air Canada (25 Oct–8 Nov).

How far ahead should I book a flight from State of Washington to Sydney?

To ensure you get the cheapest price possible for a flight from State of Washington to Sydney, you should look to book at least 23 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

What airport do you fly into for flights to Sydney from Washington?

How long is the flight from State of Washington to Sydney?

What are the most popular routes from State of Washington to Sydney?

Can I find deals for flights from Washington to Sydney that include hotel bookings?

How can I find direct flights from Washington to Sydney?

Can I find deals for business class flights from Washington to Sydney?

What is the cheapest month to book a flight from State of Washington to Sydney?

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Washington and Sydney flights

Browse other Washington and Sydney flight options. Last updated on 27 September 2026.

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Why should you use Cheapflights to find cheap flight tickets from Washington to Sydney?

Can Cheapflights find flights from Washington to Sydney with no change fees?

Can Cheapflights notify me if prices for flights from Washington to Sydney become cheaper?

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Cheapest flights from Washington to Sydney
Explore the most affordable flight options available from Washington to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 September 2026.

Best flights from Washington to Sydney
Discover carefully curated flight deals from Washington to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 September 2026.

Last-minute flights from Washington to Sydney
Discover last-minute flight deals from Washington to Sydney. Data last updated 27 September 2026 and is based on user searches.

One-way flights from Washington to Sydney
Search for one-way flight options from Washington to Sydney. Find affordable one-way fares based on user searches. Data last updated 27 September 2026.

State of Washington to Sydney flights typically cost between $1,335 and $1,688 in October.
The cheapest return price found within the last 5 days was $1,288 on Air Canada (25 Oct–8 Nov).