Sydney

$549+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SYD
Jun 4 — Jun 111
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Cheap 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 5, 2026.

This Delta deal was found by Cheapflights users on 5/1. 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.
Sun 5/1011:50 am
BWI
-
SYD
2 stops29h 00m
Delta
Tue 5/199:15 am
SYD
-
BWI
2 stops28h 31m
Delta
Deal found 5/1$1,314
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.
Sat 6/135:32 pm
BWI
-
SYD
2 stops47h 18m
Delta
Mon 8/39:15 am
SYD
-
BWI
2 stops27h 58m
Delta
Deal found 4/30$1,332
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Sun 5/106:20 pm
BWI
-
SYD
1 stop22h 35m
United Airlines
Sun 5/2410:20 am
SYD
-
BWI
2 stops39h 27m
United Airlines
Deal found 5/4$1,334
This Kissandfly.com 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/147:00 am
BWI
-
SYD
2 stops33h 55m
Lufthansa
Sun 6/219:30 am
SYD
-
BWI
1 stop35h 44m
Lufthansa
Deal found 4/30$1,338
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Sun 7/263:03 pm
BWI
-
SYD
2 stops25h 57m
United Airlines
Sun 8/2310:20 am
SYD
-
BWI
1 stop21h 30m
United Airlines
Deal found 5/1$1,339
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/23:03 pm
BWI
-
SYD
2 stops25h 57m
United Airlines
Sun 8/2310:20 am
SYD
-
BWI
1 stop21h 30m
United Airlines
Deal found 4/30$1,340
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Sun 7/263:03 pm
BWI
-
SYD
2 stops25h 57m
United Airlines
Sun 8/169:30 am
SYD
-
BWI
2 stops24h 10m
United Airlines
Deal found 5/1$1,344
This United Airlines deal was found by Cheapflights users on 5/1. 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 8/47:00 am
BWI
-
SYD
1 stop34h 00m
United Airlines
Sun 9/279:30 am
SYD
-
BWI
1 stop21h 05m
United Airlines
Deal found 5/1$1,352
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/239:30 am
DCA
-
SYD
1 stop31h 00m
Multiple Airlines
Fri 11/132:55 pm
SYD
-
DCA
2 stops45h 05m
Multiple Airlines
Deal found 4/30$1,375
This Trip.com deal was found by Cheapflights users on 5/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/311:07 am
IAD
-
SYD
2 stops29h 58m
Multiple Airlines
Wed 6/1012:00 pm
SYD
-
IAD
2 stops25h 17m
Multiple Airlines
Deal found 5/4$1,393
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Tue 8/259:30 am
DCA
-
SYD
1 stop32h 00m
Multiple Airlines
Tue 9/81:15 pm
SYD
-
DCA
2 stops44h 45m
Multiple Airlines
Deal found 5/1$1,395
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Thu 9/179:30 am
DCA
-
SYD
1 stop32h 00m
Multiple Airlines
Thu 10/11:15 pm
SYD
-
DCA
2 stops44h 45m
Multiple Airlines
Deal found 5/1$1,397

Find 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 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,314
(Delta)

One-way from

$549
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,496
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. 3% potential increase in price ($55 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
Average for round-trip flights in May 2026

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 5, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 5/10

11:50 am-6:50 am

2 stops29h 00m

Sydney Kingsford Smith

Tue 5/19

9:15 am-11:46 pm

2 stops28h 31m

$1,314

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 7/26

3:03 pm-7:00 am

2 stops25h 57m

Sydney Kingsford Smith

Sun 8/23

10:20 am-5:50 pm

1 stop21h 30m

$1,339

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 7/26

7:23 pm-7:00 am

1 stop21h 37m

Sydney Kingsford Smith

Sun 8/16

10:20 am-5:50 pm

1 stop21h 30m

$1,339

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 8/2

3:03 pm-7:00 am

2 stops25h 57m

Sydney Kingsford Smith

Sun 8/16

9:30 am-4:31 pm

1 stop21h 01m

$1,340

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 5/25

3:00 pm-7:00 am

2 stops26h 00m

Sydney Kingsford Smith

Mon 6/1

9:30 am-11:30 pm

2 stops28h 00m

$1,345

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 7/1

6:14 pm-6:50 pm

2 stops34h 36m

Sydney Kingsford Smith

Sat 7/11

8:45 pm-6:45 pm

2 stops36h 00m

$1,637

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 7/1

6:59 pm-6:50 pm

2 stops33h 51m

Sydney Kingsford Smith

Tue 7/7

8:45 pm-8:00 pm

2 stops37h 15m

$1,645

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 8/2

6:14 pm-6:50 pm

2 stops34h 36m

Sydney Kingsford Smith

Sun 8/16

8:45 pm-6:45 pm

2 stops36h 00m

$1,661

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 7/26

6:14 pm-6:50 pm

2 stops34h 36m

Sydney Kingsford Smith

Sun 8/16

8:45 pm-6:45 pm

2 stops36h 00m

$1,661

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 7/26

6:14 pm-6:50 pm

2 stops34h 36m

Sydney Kingsford Smith

Sun 8/23

8:45 pm-6:14 pm

2 stops35h 29m

$1,661

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

Showing 1-10 of 55 resultsSorted by cheapest first
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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*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
GurufarePrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Sydney flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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?

Booking 70 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, August is the cheapest month in which you can book a flight from Washington, D.C. to Sydney (average of $78). Flying from Washington, D.C. to Sydney in January is currently the most expensive (average of $377). 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.

How much does it cost to fly round-trip from Washington, D.C. to Sydney?

What’s the top layover airport for flights from Washington, D.C. to Sydney?

Share of 1-stop round-trip flights from Washington, D.C. to Sydney chosen by Cheapflights users in the past 12 months, using the same layover each way.

Los Angeles (LAX) – chosen by Cheapflights users on 50% of 1-stop itineraries from Washington, D.C. to Sydney on Cheapflights.

What’s the cheapest layover airport for flights from Washington, D.C. to Sydney?

Average round-trip fare for 1-stop flights from Washington, D.C. to Sydney, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $379.

What’s the fastest layover option from Washington, D.C. to Sydney?

Shortest average travel time for 1-stop one-way flights from Washington, D.C. to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 9h 00m.

Which airport typically offers the quickest layover for flights from Washington, D.C. to Sydney?

Average layover duration for 1-stop one-way flights from Washington, D.C. to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 1h 25m.

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 5, 2026.
Peruse reviews from past customers who have flown with Air New Zealand,Delta, andQantas Airways from Washington, D.C. to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

7.4

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

7.4

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

7.4

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

7.4

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

7.4

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

7.4

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

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.

  • How long is the flight from Washington, D.C. to Sydney?

    A quick flight from Washington, D.C. to Sydney can take about 25h 57m. Delta provides one of the quickest options available for as low as $1,339. The distance between Washington, D.C. and Sydney is about 9781 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $377, United Airlines will fly you from Washington, D.C. to Sydney and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Fiji Airways - these airlines can fly you to your destination from $544 and $719, respectively. United Airlines is 74% 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 Delta ($632), United Airlines ($794), and Qantas Airways ($830).

  • 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 Little Tokyo 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 Little Tokyo are located about 12.4 mi, 11.7 mi, and 12.2 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 $44 per day.

  • 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, August is the cheapest month in which you can book a flight from Washington, D.C. to Sydney (average of $78). Flying from Washington, D.C. to Sydney in January is currently the most expensive (average of $377). 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
Parramatta
Wollongong
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 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$276Average$869FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$377Average$1,533FlexibilityNo cancel feeOn-time69%
Fiji AirwaysCheapest$719Average$768FlexibilityNo cancel feeOn-time74%
Qantas AirwaysCheapest$787Average$1,467FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$836Average$1,564FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$841Average$1,422FlexibilityNo cancel feeOn-time67%
Air New ZealandCheapest$1,285Average$1,874FlexibilityNo cancel feeOn-time78%

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