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

$528 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Air Canada and Qantas Airways, with prices starting from $635 and $715, 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 $1,142 for the month, but tickets can be as low as $838. 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.

$423+ Flights from Washington to Sydney

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Cheap flight deals from Washington to Sydney

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$903 (Air Canada)
One-way from	$423 (Kiwi.com)
Popular in	December
Cheapest in	March
Average price	$1,120

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. 9% potential increase in price ($121 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($32 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 1, 2025.

Tue 9/23:25 pmPDX - SYD

1 stop22h 55mAir Canada

Tue 9/169:20 amSYD - PDX

1 stop17h 01mAir Canada

Deal found 4/1

$903

Tue 9/27:40 pmPDX - SYD

1 stop18h 40mMultiple Airlines

Tue 9/166:00 amSYD - PDX

2 stops20h 21mMultiple Airlines

Deal found 4/1

$913

Thu 5/156:25 pmSEA - SYD

1 stop27h 15mMultiple Airlines

Thu 5/224:20 pmSYD - SEA

1 stop30h 55mMultiple Airlines

Deal found 3/31

$943

Wed 8/277:15 pmSEA - SYD

1 stop19h 05mAir Canada

Sat 9/139:20 amSYD - SEA

1 stop17h 01mAir Canada

Deal found 3/30

$1,050

Sun 5/1810:00 amSEA - SYD

2 stops40h 15mANA

Thu 5/2211:50 amSYD - SEA

2 stops23h 43mANA

Deal found 3/31

$1,100

Fri 9/1210:35 amPDX - SYD

1 stop27h 30mAlaska Airlines

Fri 9/199:10 amSYD - PDX

1 stop19h 18mAlaska Airlines

Deal found 3/31

$1,149

Wed 5/148:15 amSEA - SYD

1 stop18h 30mHawaiian Airlines

Tue 5/279:40 pmSYD - SEA

1 stop25h 35mHawaiian Airlines

Deal found 4/1

$1,151

Fri 7/47:30 amPDX - SYD

1 stop19h 15mHawaiian Airlines

Fri 7/119:40 pmSYD - PDX

1 stop25h 15mHawaiian Airlines

Deal found 4/1

$1,151

Thu 7/311:23 pmGEG - SYD

2 stops24h 42mAlaska Airlines

Sat 8/169:10 amSYD - GEG

2 stops31h 49mAlaska Airlines

Deal found 3/31

$1,154

Fri 5/911:31 amPSC - SYD

2 stops26h 34mAlaska Airlines

Fri 5/169:10 amSYD - PSC

2 stops28h 40mAlaska Airlines

Deal found 4/1

$1,154

Sat 5/108:15 amSEA - SYD

1 stop18h 30mAlaska Airlines

Tue 5/139:40 pmSYD - SEA

2 stops25h 56mAlaska Airlines

Deal found 3/31

$1,156

Mon 11/310:10 amPDX - SYD

2 stops39h 05mANA

Sun 11/99:45 pmSYD - PDX

2 stops39h 39mANA

Deal found 3/31

$1,215

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 1, 2025.

Tue 9/23:25 pmPDX - SYD

1 stop22h 55mAir Canada

Tue 9/169:20 amSYD - PDX

1 stop17h 01mAir Canada

Deal found 4/1

$903

Tue 9/27:40 pmPDX - SYD

1 stop18h 40mMultiple Airlines

Tue 9/166:00 amSYD - PDX

2 stops20h 21mMultiple Airlines

Deal found 4/1

$913

Sun 5/1810:00 amSEA - SYD

2 stops40h 15mANA

Thu 5/2211:50 amSYD - SEA

2 stops23h 43mANA

Deal found 3/31

$1,100

Fri 9/1210:35 amPDX - SYD

1 stop27h 30mAlaska Airlines

Fri 9/199:10 amSYD - PDX

1 stop19h 18mAlaska Airlines

Deal found 3/31

$1,149

Wed 5/148:15 amSEA - SYD

1 stop18h 30mHawaiian Airlines

Tue 5/279:40 pmSYD - SEA

1 stop25h 35mHawaiian Airlines

Deal found 4/1

$1,151

Tue 6/35:14 pmSEA - SYD

1 stop20h 46mUnited Airlines

Sun 6/229:30 amSYD - SEA

2 stops28h 41mUnited Airlines

Deal found 3/31

$1,256

Mon 7/212:32 pmGEG - SYD

1 stop23h 03mDelta

Mon 7/289:25 amSYD - GEG

1 stop21h 25mDelta

Deal found 3/31

$1,265

Tue 7/16:49 pmGEG - SYD

1 stop19h 16mQantas Airways

Sat 7/199:10 amSYD - GEG

1 stop25h 37mQantas Airways

Deal found 3/30

$1,314

Sat 4/196:10 amSEA - SYD

2 stops33h 50mChina Eastern

Wed 4/308:30 pmSYD - SEA

2 stops36h 37mChina Eastern

Deal found 3/31

$1,410

Tue 5/206:59 pmSEA - SYD

2 stops23h 46mFiji Airways

Thu 6/51:15 pmSYD - SEA

2 stops22h 41mFiji Airways

Deal found 4/1

$1,445

Sun 4/132:58 pmSEA - SYD

2 stops23h 07mAmerican Airlines

Sun 4/275:45 pmSYD - SEA

1 stop22h 04mAmerican Airlines

Deal found 3/31

$1,495

Sun 5/41:10 amSEA - SYD

1 stop40h 35mChina Airlines

Mon 5/1210:10 pmSYD - SEA

1 stop38h 20mChina Airlines

Deal found 3/31

$1,572

Last-minute flights from Washington to Sydney
Discover last-minute flight deals from Washington to Sydney. Data last updated April 1, 2025 and is based on user searches.

Tue 4/16:40 pmSEA - SYD

1 stop31h 05mHawaiian Airlines

Tue 4/299:40 pmSYD - SEA

1 stop27h 45mHawaiian Airlines

Deal found 4/1

$1,190

Mon 4/712:03 pmPDX - SYD

2 stops30h 42mFiji Airways

Tue 4/291:15 pmSYD - PDX

2 stops26h 06mFiji Airways

Deal found 3/31

$1,465

Mon 4/72:40 pmPDX - SYD

1 stop23h 25mQantas Airways

Mon 4/285:45 pmSYD - PDX

1 stop21h 36mQantas Airways

Deal found 3/31

$1,544

Mon 4/710:50 amPDX - SYD

2 stops27h 05mUnited Airlines

Mon 4/2810:20 amSYD - PDX

1 stop21h 37mUnited Airlines

Deal found 3/31

$1,561

Mon 4/711:30 amPDX - SYD

2 stops26h 05mDelta

Sun 4/279:25 amSYD - PDX

2 stops24h 07mDelta

Deal found 3/31

$1,570

Tue 4/810:10 amPDX - SYD

2 stops40h 05mANA

Mon 4/2811:50 amSYD - PDX

2 stops44h 07mANA

Deal found 3/31

$1,298

Tue 4/86:07 pmPDX - SYD

1 stop32h 38mHawaiian Airlines

Tue 4/299:40 pmSYD - PDX

1 stop17h 10mHawaiian Airlines

Deal found 3/31

$1,369

Wed 4/96:07 pmPDX - SYD

1 stop27h 33mMultiple Airlines

Thu 5/14:20 pmSYD - PDX

1 stop31h 00mMultiple Airlines

Deal found 3/31

$1,098

Thu 4/106:15 amSEA - SYD

2 stops33h 45mMultiple Airlines

Mon 4/284:20 pmSYD - SEA

1 stop33h 05mMultiple Airlines

Deal found 4/1

$1,282

Thu 4/104:59 pmSEA - SYD

1 stop21h 31mQantas Airways

Mon 4/285:45 pmSYD - SEA

1 stop22h 04mQantas Airways

Deal found 4/1

$1,412

Thu 4/108:50 amSEA - SYD

2 stops29h 10mUnited Airlines

Mon 4/289:30 amSYD - SEA

2 stops25h 37mUnited Airlines

Deal found 4/1

$1,611

Fri 4/116:05 pmPDX - SYD

1 stop20h 00mAlaska Airlines

Fri 5/29:10 amSYD - PDX

2 stops24h 38mAlaska Airlines

Deal found 3/31

$1,154

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 1, 2025.

Wed 5/287:55 pmSEA - SYD

1 stop25h 45mMultiple Airlines

Deal found 4/1

$423

Tue 4/810:33 amPDX - SYD

2 stops27h 32mAlaska Airlines

Deal found 3/31

$528

Tue 4/297:30 amPDX - SYD

3 stops39h 20mMultiple Airlines

Deal found 3/30

$619

Mon 8/117:15 pmSEA - SYD

1 stop19h 05mAir Canada

Deal found 3/31

$635

Mon 5/1210:10 amSEA - SYD

1 stop27h 55mAlaska Airlines

Deal found 3/31

$696

Thu 7/102:30 pmSEA - SYD

1 stop23h 35mQantas Airways

Deal found 3/30

$715

Mon 4/217:10 amSEA - SYD

2 stops32h 50mChina Eastern

Deal found 3/31

$747

Sat 6/217:20 amSEA - SYD

3 stops30h 40mUnited Airlines

Deal found 4/1

$770

Tue 4/292:25 pmPDX - SYD

3 stops47h 30mUnited Airlines

Deal found 3/31

$847

Tue 5/131:10 amSEA - SYD

1 stop40h 35mChina Airlines

Deal found 3/31

$939

Mon 4/214:43 pmSEA - SYD

3 stops50h 02mFiji Airways

Deal found 3/31

$1,212

Tue 8/126:55 pmSEA - SYD

3 stops27h 15mAir Tahiti Nui

Deal found 3/31

$1,233

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

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 9/2

3:25 pm-7:20 am

1 stop22h 55m

Sydney Kingsford Smith

Tue 9/16

9:20 am-9:21 am

1 stop17h 01m

$903

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 9/2

7:40 pm-7:20 am

1 stop18h 40m

Sydney Kingsford Smith

Tue 9/16

6:00 am-9:21 am

2 stops20h 21m

$913

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Thu 5/15

6:25 pm-2:40 pm

1 stop27h 15m

Sydney Kingsford Smith

Thu 5/22

4:20 pm-6:15 am

1 stop30h 55m

$943

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 8/27

7:15 pm-7:20 am

1 stop19h 05m

Sydney Kingsford Smith

Sat 9/13

9:20 am-9:21 am

1 stop17h 01m

$1,050

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 5/18

10:00 am-7:15 pm

2 stops40h 15m

Sydney Kingsford Smith

Thu 5/22

11:50 am-6:33 pm

2 stops23h 43m

$1,100

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 9/12

10:35 am-7:05 am

1 stop27h 30m

Sydney Kingsford Smith

Fri 9/19

9:10 am-11:28 am

1 stop19h 18m

$1,149

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 5/14

8:15 am-7:45 pm

1 stop18h 30m

Sydney Kingsford Smith

Tue 5/27

9:40 pm-6:15 am

1 stop25h 35m

$1,151

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 7/4

7:30 am-7:45 pm

1 stop19h 15m

Sydney Kingsford Smith

Fri 7/11

9:40 pm-5:55 am

1 stop25h 15m

$1,151

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 7/31

1:23 pm-7:05 am

2 stops24h 42m

Sydney Kingsford Smith

Sat 8/16

9:10 am-11:59 pm

2 stops31h 49m

$1,154

PascoSydney

PSC - SYD

PSCSYD

Pasco Tri Cities

Fri 5/9

11:31 am-7:05 am

2 stops26h 34m

Sydney Kingsford Smith

Fri 5/16

9:10 am-8:50 pm

2 stops28h 40m

$1,154

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 50 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, ANA and China Airlines 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

8.7

Very good

61 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

8.7

Very good

61 reviews

Air Tahiti Nui

8.7

Very good

61 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

ANA

8.3

Very good

830 reviews

Air Tahiti Nui

8.7

Very good

61 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

China Airlines

8.2

Very good

723 reviews

Air Tahiti Nui

8.7

Very good

61 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Asiana Airlines

8.2

Very good

440 reviews

Air Tahiti Nui

8.7

Very good

61 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Singapore Airlines

8.1

Very good

1,286 reviews

Air Tahiti Nui

8.7

Very good

61 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?
$528 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Air Canada and Qantas Airways, with prices starting from $635 and $715, 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$1,217	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$807	Average$1,199	FlexibilityNo cancel fee	On-time71%
Air Canada	Cheapest$832	Average$1,065	FlexibilityNo cancel fee	On-time67%
Alaska Airlines	Cheapest$854	Average$1,358	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$854	Average$1,197	FlexibilityNo cancel fee	On-timeN/A
ANA	Cheapest$861	Average$1,196	FlexibilityNo cancel fee	On-time80%
Qantas Airways	Cheapest$866	Average$1,268	FlexibilityNo cancel fee	On-time74%
Hawaiian Airlines	Cheapest$876	Average$1,146	FlexibilityNo cancel fee	On-time85%

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$423+ 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 5/28. 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 1, 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 1, 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 1, 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 1, 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

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated April 1, 2025.

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 1, 2025.