Sydney

$462+ Cheap flights from Washington, D.C. (WAS) 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SYD
May 6 — May 131
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Cheapflights Tip: The best prices from Washington, D.C. to Sydney Kingsford Smith are usually found in February or April, booked 79 days in advance, depart on a Tuesday or Thursday and return on a Wednesday

Cheap flight deals from Washington, D.C. to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,140
(Delta)

One-way from

$462
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,217
Provider with most accurate pricing for Washington, D.C. (WAS)-Sydney Kingsford Smith flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Sydney Kingsford Smith flights.
From Washington, D.C. (WAS) to Sydney Kingsford Smith
One-way flight from Washington, D.C. (WAS) to Sydney Kingsford Smith
Highest demand for flights based on searches. 20% potential increase in price ($319 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($49 potential savings vs. average RT price).
Average for round-trip flights in May 2025

Find flight deals from Washington, D.C. to Sydney

Cheapest flights from Washington, D.C. to Sydney
Explore the most affordable flight options available from Washington, D.C. to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/205:10 pmDCA - SYD
1 stop23h 25mDelta
Wed 7/99:25 amSYD - DCA
1 stop20h 35mDelta
Deal found 4/30$1,140
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/201:00 pmIAD - SYD
2 stops27h 35mDelta
Wed 7/99:25 amSYD - IAD
2 stops22h 59mDelta
Deal found 4/30$1,145
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/912:12 pmBWI - SYD
3 stops33h 33mMultiple Airlines
Wed 8/137:45 pmSYD - BWI
3 stops42h 14mMultiple Airlines
Deal found 4/29$1,147
This KAYAK deal was found by Cheapflights users on 4/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/3011:30 amIAD - SYD
2 stops31h 20mQantas Airways
Wed 12/107:05 amSYD - IAD
2 stops25h 01mQantas Airways
Deal found 4/30$1,180
This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/277:30 pmDCA - SYD
2 stops26h 15mFiji Airways
Sat 10/112:45 pmSYD - DCA
2 stops23h 15mFiji Airways
Deal found 4/29$1,213
This StudentUniverse deal was found by Cheapflights users on 4/29. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/17:00 amBWI - SYD
2 stops35h 45mAir New Zealand
Tue 9/308:55 amSYD - BWI
2 stops37h 11mAir New Zealand
Deal found 4/29$1,218
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/68:59 amDCA - SYD
1 stop32h 31mMultiple Airlines
Fri 6/134:20 pmSYD - DCA
2 stops44h 39mMultiple Airlines
Deal found 4/29$1,247
This StudentUniverse deal was found by Cheapflights users on 4/29. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/285:53 pmIAD - SYD
2 stops26h 42mAir New Zealand
Sat 8/911:50 amSYD - IAD
2 stops33h 03mAir New Zealand
Deal found 4/29$1,263
This StudentUniverse deal was found by Cheapflights users on 4/30. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/174:47 pmDCA - SYD
2 stops25h 58mAir New Zealand
Thu 10/911:50 amSYD - DCA
2 stops24h 01mAir New Zealand
Deal found 4/30$1,263
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2612:15 pmIAD - SYD
1 stop31h 10mANA
Tue 9/98:55 pmSYD - IAD
1 stop32h 40mANA
Deal found 4/30$1,283
This Gurufare deal was found by Cheapflights users on 4/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2811:54 amDCA - SYD
1 stop27h 01mQantas Airways
Sat 12/206:05 amSYD - DCA
2 stops26h 14mQantas Airways
Deal found 4/29$1,296
This Fiji Airways deal was found by Cheapflights users on 4/29. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2111:30 amIAD - SYD
2 stops34h 15mMultiple Airlines
Thu 11/136:00 amSYD - IAD
2 stops32h 18mMultiple Airlines
Deal found 4/29$1,297

Cheapflights Fare Finder

Customize your flight search to find flights from Washington, D.C. 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 May 1, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Sydney that are best for you.

Fly from

Washington, D.C.

Fly to

Sydney

Route

Depart

Return

Price

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Fri 6/20

5:10 pm-6:35 am

1 stop23h 25m

Sydney Kingsford Smith

Wed 7/9

9:25 am-4:00 pm

1 stop20h 35m

$1,140

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Fri 6/20

1:00 pm-6:35 am

2 stops27h 35m

Sydney Kingsford Smith

Wed 7/9

9:25 am-6:24 pm

2 stops22h 59m

$1,145

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sat 8/9

12:12 pm-11:45 am

3 stops33h 33m

Sydney Kingsford Smith

Wed 8/13

7:45 pm-11:59 pm

3 stops42h 14m

$1,147

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sat 9/27

7:30 pm-11:45 am

2 stops26h 15m

Sydney Kingsford Smith

Sat 10/11

2:45 pm-11:00 pm

2 stops23h 15m

$1,213

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 9/1

7:00 am-8:45 am

2 stops35h 45m

Sydney Kingsford Smith

Tue 9/30

8:55 am-8:06 am

2 stops37h 11m

$1,218

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Fri 6/6

8:59 am-7:30 am

1 stop32h 31m

Sydney Kingsford Smith

Fri 6/13

4:20 pm-10:59 pm

2 stops44h 39m

$1,247

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 7/28

5:53 pm-10:35 am

2 stops26h 42m

Sydney Kingsford Smith

Sat 8/9

11:50 am-6:53 am

2 stops33h 03m

$1,263

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 9/17

4:47 pm-8:45 am

2 stops25h 58m

Sydney Kingsford Smith

Thu 10/9

11:50 am-8:51 pm

2 stops24h 01m

$1,263

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 8/26

12:15 pm-9:25 am

1 stop31h 10m

Sydney Kingsford Smith

Tue 9/9

8:55 pm-3:35 pm

1 stop32h 40m

$1,283

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 10/21

11:30 am-12:45 pm

2 stops34h 15m

Sydney Kingsford Smith

Thu 11/13

6:00 am-10:18 pm

2 stops32h 18m

$1,297

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 60 results
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Compare providers for flights from Washington, D.C. to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Sydney in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Sydney flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C.-Sydney flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Sydney flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Washington, D.C. 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, D.C. to Sydney

How far ahead should I book a flight from Washington, D.C. to Sydney?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Sydney. Price data was last updated on April 25, 2025.

Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Washington, D.C. to Sydney?

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. to Sydney (average of $1,043). Flying from Washington, D.C. 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 WAS to SYD?

Find hourly flight availability from Washington, D.C. 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.

It’s optimal to fly from Washington, D.C. to Sydney at noon. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from Washington, D.C. to Sydney?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Sydney. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. to Sydney flight should consider departing on Monday mornings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Sydney by month

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

Plan your trip to Sydney by taking into account the average temperature totals 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 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.
To help decide which airline to fly from Washington, D.C. to Sydney, see what other customers have to say about Air Tahiti Nui, ANA and Fiji Airways. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.8

Boarding

8.7

Crew

9.1

Comfort

8.1

Overall

8.8

Entertainment

7.3

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.

Food

7.8

Boarding

8.7

Crew

9.1

Comfort

8.1

Overall

8.8

Entertainment

7.3

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.
8.3
Very good

Food

7.8

Boarding

8.7

Crew

9.1

Comfort

8.1

Overall

8.8

Entertainment

7.3

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.

Food

7.8

Boarding

8.7

Crew

9.1

Comfort

8.1

Overall

8.8

Entertainment

7.3

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.

Food

7.8

Boarding

8.7

Crew

9.1

Comfort

8.1

Overall

8.8

Entertainment

7.3

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.

Food

7.8

Boarding

8.7

Crew

9.1

Comfort

8.1

Overall

8.8

Entertainment

7.3

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.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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, D.C.?

    Sydney Kingsford Smith (SYD), located 4.6 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. to Sydney. 7 airlines have flights to Kingsford Smith from Washington, D.C. on a regular basis. Booking flights from Washington, D.C. to Sydney Kingsford Smith should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. per day.

  • What are the cheapest airlines flying from Washington, D.C. to Sydney round-trip?

    Currently priced at $1,140, Delta will fly you from Washington, D.C. to Sydney and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Fiji Airways and Air New Zealand - these airlines can fly you to your destination from $1,213 and $1,263, respectively. Delta is 9% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. to Sydney one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. to Sydney are Fiji Airways ($649), Qantas Airways ($743), and Alaska Airlines ($750).

  • What are the most popular routes from Washington, D.C. to Sydney?

  • Where are the most common layover locations when flying from Washington, D.C. to Sydney?

  • What are some popular things to do or see while on a layover in Los Angeles?

    Hollywood Bowl, Hollywood Walk of Fame, and L.A. Live are the most popular attractions in Los Angeles if you're in need of something to do during your layover. Hollywood Bowl, Hollywood Walk of Fame and L.A. Live are located about 12.5 mi, 11.7 mi, and 10.8 mi, respectively from Los Angeles if you are interested in checking them out. Those landing in Los Angeles looking to spend some time exploring during their layover can rent a car for about $41 per day.

  • What are some popular points of interest to see during a layover in Dallas?

    If you're on a layover in Dallas and looking for things to do, consider visiting American Airlines Center, Dallas World Aquarium, or Reunion Tower. American Airlines Center, Dallas World Aquarium, and Reunion Tower can be accessed by traveling approximately 15.0 mi, 15.5 mi, and 15.6 mi, respectively from Dallas/Fort Worth. Travelers can rent a car at Dallas/Fort Worth for an average daily rate of $58 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Washington, D.C. to Sydney flights?

  • Can I find deals for flights from Washington, D.C. to Sydney that include hotel bookings?

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

  • How can I find direct flights from Washington, D.C. to Sydney?

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

  • Can I find deals for business class flights from Washington, D.C. to Sydney?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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 Washington, D.C. to Sydney?

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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Wollongong
Parramatta
Coogee
Manly

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Alternative routes for Washington, D.C. to Sydney

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

Top 7 airlines flying from Washington, D.C. to Sydney

Discover the top 7 airlines that operate flights from Washington, D.C. 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$346Average$1,579FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$600Average$1,090FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$815Average$1,325FlexibilityNo cancel feeOn-time74%
DeltaCheapest$848Average$1,175FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$1,036Average$1,290FlexibilityNo cancel feeOn-time67%
Air New ZealandCheapest$1,375Average$1,889FlexibilityNo cancel feeOn-time78%
ANACheapest$1,392Average$1,712FlexibilityNo cancel feeOn-time80%

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