What are the cheapest airlines to fly from State of Washington to Sydney one-way?

$469 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $511 and $529, respectively.

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

While some choose either Portland - Sydney Kingsford Smith or Spokane - Sydney Kingsford Smith, Seattle/Tacoma Intl - Sydney Kingsford Smith is the most popular route from State of Washington to Sydney.

What are the most popular airlines that fly from State of Washington to Sydney?

American Airlines, Air Canada and Alaska Airlines are the most popular airlines when flying from State of Washington to Sydney.

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

To save on the cost of your flight from State of Washington to Sydney, book at least 10 days before your planned departure. Booking around this time can save you about 15% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $880 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,183.

What is the cheapest month to fly from State of Washington to Sydney?

Our data shows that March tends to be the cheapest month to fly to Sydney from State of Washington. Users have commonly found prices around $1,144 for the month, but tickets can be as low as $833. Due to multiple factors, prepare for potentially higher prices in December.

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

For a flight from Washington to Sydney, you will be flying into Kingsford Smith. Sydney Kingsford Smith (SYD) is just 4.6 mi from the center of the city.

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 vacation 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.

$409+ Flights from Washington to Sydney - Compare & Save Big

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Cheap flight deals from Washington to Sydney

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$1,002 (KAYAK)
One-way from	$409 (Kiwi.com)
Popular in	December
Cheapest in	March
Average price	$1,119

Provider with most accurate pricing for Seattle/Tacoma Intl-Sydney Kingsford Smith flight deals.

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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sydney Kingsford Smith flights.

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From Washington to Sydney Kingsford Smith

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One-way flight from Washington to Sydney Kingsford Smith

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Highest demand for flights based on searches. 10% potential increase in price ($129 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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Find flight deals from Washington to Sydney

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 April 29, 2025.

Sun 6/84:30 pmSEA - SYD

1 stop33h 45mANA

Tue 6/178:55 pmSYD - SEA

2 stops38h 41mANA

Deal found 4/27

$1,002

Sun 6/82:55 pmSEA - SYD

2 stops35h 45mAir Canada

Tue 7/87:30 amSYD - SEA

2 stops18h 51mAir Canada

Deal found 4/27

$1,003

Wed 6/113:55 pmSEA - SYD

1 stop29h 45mMultiple Airlines

Wed 6/184:20 pmSYD - SEA

1 stop24h 04mMultiple Airlines

Deal found 4/28

$1,008

Wed 6/112:52 pmPDX - SYD

2 stops30h 48mMultiple Airlines

Wed 6/184:20 pmSYD - PDX

1 stop22h 45mMultiple Airlines

Deal found 4/27

$1,013

Fri 10/3111:55 pmSEA - SYD

1 stop39h 50mPhilippine Airlines

Wed 11/1911:35 amSYD - SEA

1 stop27h 00mPhilippine Airlines

Deal found 4/27

$1,060

Thu 6/122:30 pmSEA - SYD

2 stops23h 30mUnited Airlines

Thu 6/199:30 amSYD - SEA

2 stops28h 41mUnited Airlines

Deal found 4/28

$1,080

Mon 10/202:40 pmGEG - SYD

2 stops24h 05mMultiple Airlines

Mon 10/271:55 pmSYD - GEG

2 stops25h 29mMultiple Airlines

Deal found 4/28

$1,097

Tue 8/125:10 pmSEA - SYD

2 stops24h 25mAir New Zealand

Wed 8/2011:50 amSYD - SEA

2 stops27h 25mAir New Zealand

Deal found 4/27

$1,108

Tue 10/215:40 pmPDX - SYD

2 stops21h 05mAir New Zealand

Tue 11/119:55 amSYD - PDX

2 stops23h 47mAir New Zealand

Deal found 4/28

$1,108

Mon 6/305:40 pmSEA - SYD

1 stop19h 55mDelta

Mon 7/79:25 amSYD - SEA

1 stop28h 00mDelta

Deal found 4/27

$1,117

Sat 10/257:20 amSEA - SYD

1 stop30h 10mQantas Airways

Sat 11/1511:15 amSYD - SEA

1 stop26h 29mQantas Airways

Deal found 4/27

$1,138

Tue 9/23:25 pmPDX - SYD

1 stop22h 55mAir Canada

Tue 9/239:20 amSYD - PDX

1 stop22h 26mAir Canada

Deal found 4/28

$1,144

Best flights from Washington to Sydney
Discover carefully curated flight deals from Washington to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2025.

Sun 6/84:30 pmSEA - SYD

1 stop33h 45mANA

Tue 6/178:55 pmSYD - SEA

2 stops38h 41mANA

Deal found 4/27

$1,002

Sun 6/82:55 pmSEA - SYD

2 stops35h 45mAir Canada

Tue 7/87:30 amSYD - SEA

2 stops18h 51mAir Canada

Deal found 4/27

$1,003

Wed 6/113:55 pmSEA - SYD

1 stop29h 45mMultiple Airlines

Wed 6/184:20 pmSYD - SEA

1 stop24h 04mMultiple Airlines

Deal found 4/28

$1,008

Thu 6/122:30 pmSEA - SYD

2 stops23h 30mUnited Airlines

Thu 6/199:30 amSYD - SEA

2 stops28h 41mUnited Airlines

Deal found 4/28

$1,080

Tue 8/125:10 pmSEA - SYD

2 stops24h 25mAir New Zealand

Wed 8/2011:50 amSYD - SEA

2 stops27h 25mAir New Zealand

Deal found 4/27

$1,108

Mon 6/305:40 pmSEA - SYD

1 stop19h 55mDelta

Sun 7/69:25 amSYD - SEA

1 stop28h 10mDelta

Deal found 4/27

$1,117

Sat 10/257:20 amSEA - SYD

1 stop30h 10mQantas Airways

Sat 11/1511:15 amSYD - SEA

1 stop26h 29mQantas Airways

Deal found 4/27

$1,138

Wed 8/278:15 amSEA - SYD

1 stop18h 30mHawaiian Airlines

Tue 9/169:40 pmSYD - SEA

1 stop17h 04mHawaiian Airlines

Deal found 4/27

$1,152

Thu 8/288:15 amSEA - SYD

1 stop18h 30mAlaska Airlines

Tue 9/29:40 pmSYD - SEA

1 stop17h 04mAlaska Airlines

Deal found 4/28

$1,158

Sat 7/510:09 amSEA - SYD

2 stops28h 21mAmerican Airlines

Tue 7/2210:25 amSYD - SEA

1 stop21h 22mAmerican Airlines

Deal found 4/27

$1,189

Sun 8/3111:35 pmSEA - SYD

1 stop39h 25mPhilippine Airlines

Wed 9/1010:10 amSYD - SEA

1 stop26h 05mPhilippine Airlines

Deal found 4/27

$1,205

Thu 6/123:42 pmPDX - SYD

1 stop22h 13mVirgin Australia

Thu 6/1910:20 amSYD - PDX

1 stop21h 26mVirgin Australia

Deal found 4/28

$1,375

Last-minute flights from Washington to Sydney
Discover last-minute flight deals from Washington to Sydney. Data last updated April 29, 2025 and is based on user searches.

Tue 4/296:25 pmSEA - SYD

1 stop19h 40mQantas Airways

Tue 5/65:45 pmSYD - SEA

1 stop22h 24mQantas Airways

Deal found 4/28

$1,404

Sun 5/43:46 pmPDX - SYD

1 stop22h 09mUnited Airlines

Wed 5/2110:20 amSYD - PDX

1 stop21h 28mUnited Airlines

Deal found 4/28

$1,557

Mon 5/512:09 pmPDX - SYD

1 stop26h 21mMultiple Airlines

Fri 5/234:20 pmSYD - PDX

2 stops41h 26mMultiple Airlines

Deal found 4/28

$1,145

Mon 5/58:15 amSEA - SYD

1 stop18h 30mHawaiian Airlines

Tue 6/39:40 pmSYD - SEA

1 stop17h 20mHawaiian Airlines

Deal found 4/28

$1,158

Mon 5/58:15 amSEA - SYD

1 stop18h 30mAlaska Airlines

Tue 6/39:40 pmSYD - SEA

1 stop27h 55mAlaska Airlines

Deal found 4/27

$1,175

Mon 5/59:55 amSEA - SYD

2 stops27h 40mDelta

Tue 6/39:25 amSYD - SEA

2 stops26h 10mDelta

Deal found 4/28

$1,501

Mon 5/57:10 pmSEA - SYD

2 stops54h 50mTurkish Airlines

Tue 6/38:55 pmSYD - SEA

2 stops37h 20mTurkish Airlines

Deal found 4/27

$1,541

Mon 5/512:09 pmPDX - SYD

1 stop25h 56mQantas Airways

Tue 5/209:30 pmSYD - PDX

1 stop17h 46mQantas Airways

Deal found 4/28

$1,544

Mon 5/51:55 pmPDX - SYD

2 stops23h 40mDelta

Wed 5/219:25 amSYD - PDX

2 stops22h 25mDelta

Deal found 4/28

$1,571

Wed 5/78:05 amPDX - SYD

1 stop18h 40mAlaska Airlines

Sun 5/189:40 pmSYD - PDX

1 stop25h 40mAlaska Airlines

Deal found 4/28

$1,158

Wed 5/711:35 pmSEA - SYD

1 stop39h 25mMultiple Airlines

Wed 5/219:10 amSYD - SEA

1 stop30h 59mMultiple Airlines

Deal found 4/28

$1,256

Wed 5/78:05 amPDX - SYD

1 stop18h 40mHawaiian Airlines

Tue 5/209:40 pmSYD - PDX

1 stop17h 15mHawaiian Airlines

Deal found 4/28

$1,278

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 April 29, 2025.

Mon 8/189:44 pmSEA - SYD

2 stops47h 56mMultiple Airlines

Deal found 4/27

$409

Sun 6/17:15 pmSEA - SYD

1 stop19h 05mAir Canada

Deal found 4/28

$469

Sun 6/17:20 amSEA - SYD

3 stops30h 40mUnited Airlines

Deal found 4/28

$511

Wed 6/251:30 pmSEA - SYD

2 stops24h 05mDelta

Deal found 4/28

$529

Fri 6/279:30 pmPDX - SYD

2 stops48h 10mMultiple Airlines

Deal found 4/27

$561

Wed 10/1511:35 pmSEA - SYD

1 stop39h 25mPhilippine Airlines

Deal found 4/28

$618

Sun 8/104:30 pmSEA - SYD

1 stop23h 55mANA

Deal found 4/28

$683

Sun 5/48:00 pmSEA - SYD

2 stops30h 45mAlaska Airlines

Deal found 4/28

$696

Sat 5/178:00 amPDX - SYD

1 stop18h 45mAlaska Airlines

Deal found 4/27

$696

Sun 5/46:08 amSEA - SYD

1 stop32h 22mQantas Airways

Deal found 4/28

$699

Sun 8/102:32 pmSEA - SYD

2 stops28h 13mFiji Airways

Deal found 4/28

$702

Sat 5/35:40 pmSEA - SYD

2 stops23h 55mAir New Zealand

Deal found 4/28

$788

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 6/8

4:30 pm-7:15 pm

1 stop33h 45m

Sydney Kingsford Smith

Tue 6/17

8:55 pm-6:36 pm

2 stops38h 41m

$1,002

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 6/8

2:55 pm-7:40 pm

2 stops35h 45m

Sydney Kingsford Smith

Tue 7/8

7:30 am-9:21 am

2 stops18h 51m

$1,003

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 6/11

3:55 pm-2:40 pm

1 stop29h 45m

Sydney Kingsford Smith

Wed 6/18

4:20 pm-11:24 pm

1 stop24h 04m

$1,008

PortlandSydney

PDX - SYD

PDXSYD

Portland

Wed 6/11

2:52 pm-2:40 pm

2 stops30h 48m

Sydney Kingsford Smith

Wed 6/18

4:20 pm-10:05 pm

1 stop22h 45m

$1,013

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Thu 6/12

2:30 pm-7:00 am

2 stops23h 30m

Sydney Kingsford Smith

Thu 6/19

9:30 am-9:11 pm

2 stops28h 41m

$1,080

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Mon 10/20

2:40 pm-8:45 am

2 stops24h 05m

Sydney Kingsford Smith

Mon 10/27

1:55 pm-9:24 pm

2 stops25h 29m

$1,097

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Tue 8/12

5:10 pm-10:35 am

2 stops24h 25m

Sydney Kingsford Smith

Wed 8/20

11:50 am-10:15 pm

2 stops27h 25m

$1,108

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 6/30

5:40 pm-6:35 am

1 stop19h 55m

Sydney Kingsford Smith

Mon 7/7

9:25 am-8:25 pm

1 stop28h 00m

$1,117

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sat 10/25

7:20 am-7:30 am

1 stop30h 10m

Sydney Kingsford Smith

Sat 11/15

11:15 am-6:44 pm

1 stop26h 29m

$1,138

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 8/27

8:15 am-7:45 pm

1 stop18h 30m

Sydney Kingsford Smith

Tue 9/16

9:40 pm-9:44 pm

1 stop17h 04m

$1,152

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 51 results

...

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.

Estimated round-trip 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

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

Currently, February is the cheapest month in which you can book a flight from State of Washington to Sydney (average of $1,046). Flying from State of Washington to Sydney in December is currently the most expensive (average of $1,643). 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.

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

When flying from State of Washington to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Sydney by month

In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

Temperature in Sydney by month

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 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Sydney

Get a feel of what it's like to fly with Air Tahiti Nui, China Airlines and ANA from Washington to Sydney by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Air Tahiti Nui

8.8

Very good

62 reviews

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

China Airlines

8.3

Very good

729 reviews

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

ANA

8.3

Very good

855 reviews

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Asiana Airlines

8.2

Very good

442 reviews

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Fiji Airways

8.1

Very good

190 reviews

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Related info for your journey

What airport do you fly into for flights to Sydney from Washington?
For a flight from Washington to Sydney, you will be flying into Kingsford Smith. Sydney Kingsford Smith (SYD) is just 4.6 mi from the center of the city.
What are the cheapest airlines to fly from State of Washington to Sydney one-way?
$469 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $511 and $529, respectively.
What are the most popular routes from State of Washington to Sydney?
While some choose either Portland - Sydney Kingsford Smith or Spokane - Sydney Kingsford Smith, Seattle/Tacoma Intl - Sydney Kingsford Smith is the most popular route from State of Washington to Sydney.
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 vacation 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, February is the cheapest month in which you can book a flight from State of Washington to Sydney (average of $1,046). Flying from State of Washington to Sydney in December is currently the most expensive (average of $1,643). 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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Top 8 airlines flying from Washington to Sydney

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$759	Average$1,192	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$807	Average$1,212	FlexibilityNo cancel fee	On-time71%
Air Canada	Cheapest$834	Average$1,066	FlexibilityNo cancel fee	On-time67%
Delta	Cheapest$854	Average$1,200	FlexibilityNo cancel fee	On-timeN/A
Hawaiian Airlines	Cheapest$858	Average$1,144	FlexibilityNo cancel fee	On-time85%
ANA	Cheapest$861	Average$1,196	FlexibilityNo cancel fee	On-time80%
Qantas Airways	Cheapest$866	Average$1,241	FlexibilityNo cancel fee	On-time74%
Alaska Airlines	Cheapest$911	Average$1,364	FlexibilityNo cancel fee	On-time75%

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$409+ Cheap flights from Washington to Sydney (SYD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Washington to Sydney

Keep the following information in mind while searching for Washington to Sydney flight deals. Data was last updated April 29, 2025.

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Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 April 29, 2025.

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 April 29, 2025.

Cheapflights Fare Finder

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

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

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

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

Find hourly flight availability from Washington to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

Reviews of airlines servicing Sydney

Related info for your journey

Find useful and relevant information for your journey from Washington to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

What are the cheapest airlines to fly from State of Washington to Sydney one-way?

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?

Traveling to a place near Washington?

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Alternative routes for Washington to Sydney

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Top 8 airlines flying from Washington to Sydney

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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 April 29, 2025.