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

$431 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Virgin Australia and Air Canada, with prices starting from $447 and $469, 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.

$431+ Flights from Washington to Sydney - Compare & Save Big

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Washington to Sydney with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Washington to Sydney

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$878 (United Airlines)
One-way from	$431 (United Airlines)
Popular in	December
Cheapest in	March
Average price	$1,170

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

Search Deals

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

Search Deals

From Washington to Sydney Kingsford Smith

Search Deals

One-way flight from Washington to Sydney Kingsford Smith

Search Deals

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

Search Deals

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

Search Deals

Average for round-trip flights in May 2025

Search Deals

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 May 1, 2025.

Thu 7/315:30 amGEG - SYD

2 stops32h 30mUnited Airlines

Sat 8/169:30 amSYD - GEG

2 stops24h 57mUnited Airlines

Deal found 4/30

$878

Sat 8/97:46 pmPDX - SYD

1 stop18h 09mUnited Airlines

Sat 8/3010:20 amSYD - PDX

1 stop25h 12mUnited Airlines

Deal found 4/30

$966

Sun 10/1911:25 amSEA - SYD

2 stops26h 10mDelta

Fri 10/3110:05 amSYD - SEA

2 stops26h 25mDelta

Deal found 4/30

$996

Mon 6/26:52 pmSEA - SYD

1 stop19h 38mMultiple Airlines

Thu 6/54:20 pmSYD - SEA

2 stops31h 16mMultiple Airlines

Deal found 4/30

$997

Sun 8/171:37 pmPDX - SYD

1 stop24h 18mVirgin Australia

Sat 8/3010:20 amSYD - PDX

1 stop25h 12mVirgin Australia

Deal found 4/29

$1,032

Wed 7/95:14 pmSEA - SYD

1 stop20h 46mUnited Airlines

Tue 7/1510:20 amSYD - SEA

1 stop20h 05mUnited Airlines

Deal found 5/1

$1,068

Sun 9/71:45 pmSEA - SYD

2 stops26h 40mANA

Tue 9/1611:50 amSYD - SEA

2 stops23h 46mANA

Deal found 4/30

$1,070

Sun 5/254:00 pmSEA - SYD

1 stop22h 05mQantas Airways

Sun 6/85:45 pmSYD - SEA

1 stop21h 00mQantas Airways

Deal found 4/30

$1,138

Tue 11/48:20 pmSEA - SYD

1 stop18h 15mAir Canada

Tue 11/1111:20 amSYD - SEA

1 stop26h 06mAir Canada

Deal found 4/29

$1,144

Thu 8/288:15 amSEA - SYD

1 stop18h 30mHawaiian Airlines

Tue 9/29:40 pmSYD - SEA

1 stop18h 32mHawaiian Airlines

Deal found 4/30

$1,152

Wed 5/78:05 amPDX - SYD

1 stop18h 40mAlaska Airlines

Sat 5/179:40 pmSYD - PDX

1 stop17h 15mAlaska Airlines

Deal found 5/1

$1,158

Fri 5/912:09 pmPDX - SYD

1 stop26h 21mMultiple Airlines

Fri 5/234:20 pmSYD - PDX

1 stop31h 00mMultiple Airlines

Deal found 4/30

$1,169

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 May 1, 2025.

Thu 7/315:30 amGEG - SYD

2 stops32h 30mUnited Airlines

Sat 8/169:30 amSYD - GEG

2 stops24h 57mUnited Airlines

Deal found 4/30

$878

Sun 10/1911:25 amSEA - SYD

2 stops26h 10mDelta

Thu 10/3010:05 amSYD - SEA

2 stops22h 54mDelta

Deal found 4/30

$996

Mon 6/26:52 pmSEA - SYD

1 stop19h 38mMultiple Airlines

Thu 6/54:20 pmSYD - SEA

2 stops31h 16mMultiple Airlines

Deal found 4/30

$997

Sun 8/171:37 pmPDX - SYD

1 stop24h 18mVirgin Australia

Sat 8/3010:20 amSYD - PDX

1 stop25h 12mVirgin Australia

Deal found 4/29

$1,032

Sun 9/71:45 pmSEA - SYD

2 stops26h 40mANA

Tue 9/1611:50 amSYD - SEA

2 stops23h 46mANA

Deal found 4/30

$1,070

Sun 5/254:00 pmSEA - SYD

1 stop22h 05mQantas Airways

Sun 6/85:45 pmSYD - SEA

1 stop21h 00mQantas Airways

Deal found 4/30

$1,138

Thu 8/288:15 amSEA - SYD

1 stop18h 30mHawaiian Airlines

Tue 9/29:40 pmSYD - SEA

1 stop18h 32mHawaiian Airlines

Deal found 4/30

$1,152

Fri 5/308:00 amPDX - SYD

1 stop18h 45mAlaska Airlines

Fri 6/69:40 pmSYD - PDX

1 stop17h 15mAlaska Airlines

Deal found 4/30

$1,158

Sun 8/242:55 pmSEA - SYD

2 stops24h 50mAir New Zealand

Fri 9/1211:50 amSYD - SEA

2 stops27h 25mAir New Zealand

Deal found 4/30

$1,209

Mon 10/201:45 pmSEA - SYD

1 stop24h 35mAir Canada

Mon 10/277:30 amSYD - SEA

2 stops19h 46mAir Canada

Deal found 4/30

$1,249

Mon 5/197:20 amSEA - SYD

2 stops32h 40mChina Eastern

Mon 6/28:30 pmSYD - SEA

2 stops37h 15mChina Eastern

Deal found 4/30

$1,258

Tue 8/262:32 pmSEA - SYD

2 stops28h 13mFiji Airways

Tue 9/96:00 amSYD - SEA

3 stops34h 09mFiji Airways

Deal found 4/30

$1,571

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

Fri 5/28:40 pmSEA - SYD

1 stop30h 05mAlaska Airlines

Tue 5/69:40 pmSYD - SEA

2 stops25h 55mAlaska Airlines

Deal found 4/30

$1,175

Mon 5/58:15 amSEA - SYD

1 stop18h 30mHawaiian Airlines

Sun 5/119:40 pmSYD - SEA

1 stop25h 35mHawaiian Airlines

Deal found 4/30

$1,158

Tue 5/65:50 pmPDX - SYD

1 stop19h 15mQantas Airways

Wed 5/218:45 amSYD - PDX

2 stops24h 39mQantas Airways

Deal found 5/1

$1,598

Tue 5/61:10 amSEA - SYD

1 stop40h 35mChina Airlines

Wed 5/2110:10 pmSYD - SEA

1 stop38h 20mChina Airlines

Deal found 4/30

$1,690

Wed 5/712:50 pmSEA - SYD

2 stops49h 30mMultiple Airlines

Fri 5/234:20 pmSYD - SEA

1 stop33h 15mMultiple Airlines

Deal found 4/30

$1,097

Wed 5/78:05 amPDX - SYD

1 stop18h 40mAlaska Airlines

Sat 5/179:40 pmSYD - PDX

1 stop17h 15mAlaska Airlines

Deal found 5/1

$1,158

Wed 5/78:05 amPDX - SYD

1 stop18h 40mHawaiian Airlines

Tue 5/209:40 pmSYD - PDX

1 stop25h 40mHawaiian Airlines

Deal found 5/1

$1,278

Wed 5/79:00 amSEA - SYD

1 stop28h 55mUnited Airlines

Wed 5/2110:20 amSYD - SEA

1 stop20h 23mUnited Airlines

Deal found 4/30

$1,396

Wed 5/78:05 amPDX - SYD

1 stop18h 40mAlaska Airlines

Sun 5/189:40 pmSYD - PDX

1 stop25h 40mAlaska Airlines

Deal found 5/1

$1,158

Thu 5/83:56 pmPDX - SYD

1 stop21h 59mUnited Airlines

Thu 5/2210:20 amSYD - PDX

1 stop21h 26mUnited Airlines

Deal found 5/1

$966

Thu 5/85:40 pmPDX - SYD

3 stops25h 35mFiji Airways

Mon 5/191:15 pmSYD - PDX

2 stops27h 44mFiji Airways

Deal found 5/1

$1,712

Fri 5/912:09 pmPDX - SYD

1 stop26h 21mMultiple Airlines

Fri 5/234:20 pmSYD - PDX

1 stop31h 00mMultiple Airlines

Deal found 4/30

$1,169

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 May 1, 2025.

Sat 10/189:55 amPDX - SYD

1 stop28h 00mUnited Airlines

Deal found 4/30

$431

Fri 7/251:37 pmPDX - SYD

1 stop24h 18mVirgin Australia

Deal found 4/30

$447

Thu 6/128:40 pmSEA - SYD

1 stop25h 00mMultiple Airlines

Deal found 4/30

$466

Sun 6/12:55 pmSEA - SYD

1 stop23h 25mAir Canada

Deal found 4/30

$469

Sat 6/76:52 pmSEA - SYD

1 stop19h 13mQantas Airways

Deal found 4/30

$486

Thu 6/53:17 pmSEA - SYD

2 stops22h 48mAmerican Airlines

Deal found 4/30

$513

Thu 6/57:20 amSEA - SYD

3 stops30h 40mUnited Airlines

Deal found 4/30

$515

Tue 5/206:25 pmSEA - SYD

1 stop32h 20mHawaiian Airlines

Deal found 4/30

$669

Sat 5/108:15 amSEA - SYD

1 stop18h 30mAlaska Airlines

Deal found 4/30

$696

Fri 7/252:35 pmPDX - SYD

3 stops35h 40mMultiple Airlines

Deal found 4/30

$700

Wed 7/91:45 pmSEA - SYD

2 stops36h 30mANA

Deal found 4/30

$711

Tue 7/1511:22 amSEA - SYD

2 stops26h 13mDelta

Deal found 4/30

$720

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

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 7/31

5:30 am-7:00 am

2 stops32h 30m

Sydney Kingsford Smith

Sat 8/16

9:30 am-5:27 pm

2 stops24h 57m

$878

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sat 8/9

7:46 pm-6:55 am

1 stop18h 09m

Sydney Kingsford Smith

Sat 8/30

10:20 am-6:32 pm

1 stop25h 12m

$966

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 10/19

11:25 am-7:35 am

2 stops26h 10m

Sydney Kingsford Smith

Thu 10/30

10:05 am-2:59 pm

2 stops22h 54m

$996

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 6/2

6:52 pm-7:30 am

1 stop19h 38m

Sydney Kingsford Smith

Thu 6/5

4:20 pm-6:36 am

2 stops31h 16m

$997

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 8/17

1:37 pm-6:55 am

1 stop24h 18m

Sydney Kingsford Smith

Sat 8/30

10:20 am-6:32 pm

1 stop25h 12m

$1,032

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 7/9

5:14 pm-7:00 am

1 stop20h 46m

Sydney Kingsford Smith

Tue 7/15

10:20 am-1:25 pm

1 stop20h 05m

$1,068

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 9/7

1:45 pm-9:25 am

2 stops26h 40m

Sydney Kingsford Smith

Tue 9/16

11:50 am-6:36 pm

2 stops23h 46m

$1,070

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 5/25

4:00 pm-7:05 am

1 stop22h 05m

Sydney Kingsford Smith

Sun 6/8

5:45 pm-9:45 pm

1 stop21h 00m

$1,138

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Thu 8/28

8:15 am-7:45 pm

1 stop18h 30m

Sydney Kingsford Smith

Tue 9/2

9:40 pm-11:12 pm

1 stop18h 32m

$1,152

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sat 8/2

8:15 am-7:45 pm

1 stop18h 30m

Sydney Kingsford Smith

Sun 8/24

9:40 pm-9:44 pm

1 stop17h 04m

$1,158

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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, March is the cheapest month in which you can book a flight from State of Washington to Sydney (average of $1,043). 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

732 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

852 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

Singapore Airlines

8.1

Very good

1,292 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?
$431 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Virgin Australia and Air Canada, with prices starting from $447 and $469, 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, March is the cheapest month in which you can book a flight from State of Washington to Sydney (average of $1,043). 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

Wollongong

Parramatta

Coogee

Manly

Browse thousands of different options on Cheapflights for your next trip

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%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$431+ 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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington to Sydney with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 May 1, 2025.

Most accurate provider

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 May 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 May 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 May 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 May 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?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington to Sydney

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from Washington to Sydney

100% Free

Book with Flexibility

Travel Smart

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 May 1, 2025.