HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sydney

$366+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SYD
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

Keep the following information in mind while searching for Washington to Sydney flight deals. Data was last updated July 30, 2025.

Round-trip from

$709
(Expedia)

One-way from

$366
(Air Canada)

Popular in

December

Cheapest in

February

Average price

$1,082
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. 12% potential increase in price ($159 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 30, 2025.

This Expedia deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2410:00 amSEA - SYD
1 stop28h 20mAir Canada
Tue 9/99:20 amSYD - SEA
1 stop21h 56mAir Canada
Deal found 7/29$709
This Air Canada deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/38:00 pmSEA - SYD
2 stops23h 25mMultiple Airlines
Sun 11/1611:20 amSYD - SEA
1 stop26h 56mMultiple Airlines
Deal found 7/30$748
This Expedia deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/217:40 pmPDX - SYD
1 stop18h 40mAir Canada
Thu 9/49:20 amSYD - PDX
1 stop22h 26mAir Canada
Deal found 7/29$765
This Aunt Betty deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/122:50 pmPDX - SYD
1 stop23h 15mQantas Airways
Fri 9/199:10 amSYD - PDX
1 stop21h 14mQantas Airways
Deal found 7/29$800
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1211:42 amPDX - SYD
2 stops26h 23mAmerican Airlines
Fri 9/199:10 amSYD - PDX
2 stops24h 34mAmerican Airlines
Deal found 7/29$803
This Ovago deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/195:59 pmSEA - SYD
1 stop20h 06mQantas Airways
Mon 9/299:10 amSYD - SEA
1 stop20h 44mQantas Airways
Deal found 7/28$810
This Qantas Airways deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/22:30 pmPDX - SYD
1 stop22h 35mMultiple Airlines
Tue 9/239:10 amSYD - PDX
1 stop21h 14mMultiple Airlines
Deal found 7/30$815
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/21:01 pmPDX - SYD
2 stops24h 59mUnited Airlines
Tue 9/239:30 amSYD - PDX
2 stops28h 31mUnited Airlines
Deal found 7/30$835
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/237:15 amPDX - SYD
2 stops30h 20mDelta
Tue 9/309:25 amSYD - PDX
1 stop26h 32mDelta
Deal found 7/29$836
This Qantas Airways deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/96:49 pmGEG - SYD
1 stop19h 41mMultiple Airlines
Sat 8/235:45 pmSYD - GEG
1 stop21h 40mMultiple Airlines
Deal found 7/29$862
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/91:37 pmGEG - SYD
2 stops24h 18mUnited Airlines
Sat 8/2310:20 amSYD - GEG
1 stop17h 18mUnited Airlines
Deal found 7/29$878
This Gurufare deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/42:38 pmGEG - SYD
1 stop23h 22mQantas Airways
Mon 11/175:45 pmSYD - GEG
1 stop39h 13mQantas Airways
Deal found 7/28$909

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2025.
Use the filters below to find and compare flights from Washington to Sydney that are best for you.

Fly from

Washington

Fly to

Sydney

Route

Depart

Return

Price

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 8/24

10:00 am-7:20 am

1 stop28h 20m

Sydney Kingsford Smith

Tue 9/9

9:20 am-2:16 pm

1 stop21h 56m

$709

PortlandSydney

PDX - SYD

PDXSYD

Portland

Thu 8/21

7:40 pm-7:20 am

1 stop18h 40m

Sydney Kingsford Smith

Thu 9/4

9:20 am-2:46 pm

1 stop22h 26m

$765

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 9/12

2:50 pm-7:05 am

1 stop23h 15m

Sydney Kingsford Smith

Fri 9/19

9:10 am-1:24 pm

1 stop21h 14m

$800

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sat 9/13

3:59 pm-7:05 am

1 stop22h 06m

Sydney Kingsford Smith

Sat 9/20

9:10 am-6:25 pm

1 stop26h 15m

$803

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 9/12

2:56 pm-7:30 am

1 stop23h 34m

Sydney Kingsford Smith

Fri 9/19

9:10 am-4:44 pm

2 stops24h 34m

$803

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Fri 9/19

5:59 pm-7:05 am

1 stop20h 06m

Sydney Kingsford Smith

Mon 9/29

9:10 am-12:54 pm

1 stop20h 44m

$810

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 9/2

2:30 pm-6:05 am

1 stop22h 35m

Sydney Kingsford Smith

Tue 9/23

9:10 am-1:24 pm

1 stop21h 14m

$815

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 10/6

1:35 pm-6:55 am

1 stop23h 20m

Sydney Kingsford Smith

Mon 10/20

10:10 am-2:12 pm

1 stop22h 02m

$818

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 9/2

1:01 pm-7:00 am

2 stops24h 59m

Sydney Kingsford Smith

Tue 9/23

9:30 am-9:01 pm

2 stops28h 31m

$835

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 9/23

7:15 am-6:35 am

2 stops30h 20m

Sydney Kingsford Smith

Tue 9/30

9:25 am-6:57 pm

1 stop26h 32m

$836

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 40 results
1
2
3
4

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 $1,028). Flying from State of Washington to Sydney in December is currently the most expensive (average of $1,619). 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?

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 July 30, 2025.

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.

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 July 30, 2025.
Peruse reviews from past customers who have flown with China Airlines, Fiji Airways, and Delta from Washington to Sydney to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very good
754 reviews

Entertainment

8.0

Food

7.8

Overall

8.3

Crew

8.5

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
China Airlines
8.3
Very good
754 reviews
China Airlines
8.3
Very good
754 reviews

Entertainment

8.0

Food

7.8

Overall

8.3

Crew

8.5

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
Fiji Airways
8.0
Very good
202 reviews
China Airlines
8.3
Very good
754 reviews

Entertainment

8.0

Food

7.8

Overall

8.3

Crew

8.5

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
Delta
8.0
Very good
7,980 reviews
China Airlines
8.3
Very good
754 reviews

Entertainment

8.0

Food

7.8

Overall

8.3

Crew

8.5

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
Alaska Airlines
8.0
Very good
10,000 reviews
China Airlines
8.3
Very good
754 reviews

Entertainment

8.0

Food

7.8

Overall

8.3

Crew

8.5

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
Air New Zealand
8.0
Very good
501 reviews
China Airlines
8.3
Very good
754 reviews

Entertainment

8.0

Food

7.8

Overall

8.3

Crew

8.5

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.

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?

    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?

    $366 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 Qantas Airways and American Airlines, with prices starting from $378 and $394, 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 $1,028). Flying from State of Washington to Sydney in December is currently the most expensive (average of $1,619). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Wollongong
Parramatta
Manly
Coogee

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.
Los Angeles to Sydney flights
San Francisco to Sydney flights
John F Kennedy Intl to Sydney flights
Dallas/Fort Worth to Sydney flights
Newark to Sydney flights
LaGuardia to Sydney flights
Seattle to Sydney flights
Ontario to Sydney flights
Santa Ana to Sydney flights
Dulles Intl to Sydney flights
Boston to Sydney flights
Hobby to Sydney flights
O'Hare Intl to Sydney flights
Reagan-National to Sydney flights
Baltimore to Sydney flights
San Jose to Sydney flights
George Bush Intcntl to Sydney flights
Honolulu to Sydney flights
Minneapolis to Sydney flights
Denver to Sydney flights
Detroit to Sydney flights
Salt Lake City to Sydney flights
Oakland to Sydney flights
Sky Harbor Intl to Sydney flights
Atlanta to Sydney flights
Burbank to Sydney flights
Midway to Sydney flights
Miami to Sydney flights
Orlando to Sydney flights
Tampa to Sydney flights
Portland to Sydney flights
Philadelphia to Sydney flights
Austin to Sydney flights
Raleigh to Sydney flights
San Diego to Sydney flights
Charlotte to Sydney flights
Fort Lauderdale to Sydney flights
Norfolk to Sydney flights
Sacramento to Sydney flights
St. Louis to Sydney flights
Nashville to Sydney flights
Long Beach to Sydney flights
Love Field to Sydney flights
Cincinnati to Sydney flights
Pittsburgh to Sydney flights
Buffalo to Sydney flights
Indianapolis to Sydney flights
New Orleans to Sydney flights
Kansas City to Sydney flights
Cleveland to Sydney flights

Top 8 airlines flying from Washington to Sydney

Discover the top 8 airlines that operate flights from Washington to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$591Average$1,169FlexibilityNo cancel feeOn-time75%
Qantas AirwaysCheapest$789Average$1,020FlexibilityNo cancel feeOn-time74%
ANACheapest$794Average$1,115FlexibilityNo cancel feeOn-time80%
American AirlinesCheapest$807Average$1,128FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$834Average$1,074FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$844Average$1,167FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$858Average$1,158FlexibilityNo cancel feeOn-time85%
DeltaCheapest$874Average$1,197FlexibilityNo cancel feeOn-timeN/A

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.