HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Australia

$541+ Cheap flights from Washington, D.C. (WAS) to Australia

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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SYD
Jun 7 — Jun 141
Sun 6/7
Sun 6/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington, D.C. to Australia 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, D.C. to Australia

Cheapest flights from Washington, D.C. to Australia
Explore the most affordable flight options available from Washington, D.C. to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 8, 2026.

This Delta deal was found by Cheapflights users on 5/7. 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 5/104:50 pm
DCA
-
SYD
1 stop24h 00m
Delta
Sun 5/249:15 am
SYD
-
DCA
1 stop20h 25m
Delta
Deal found 5/7$1,010
This Delta deal was found by Cheapflights users on 5/8. 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.
Mon 6/14:50 pm
DCA
-
SYD
1 stop24h 00m
Delta
Sun 6/79:15 am
SYD
-
DCA
1 stop20h 20m
Delta
Deal found 5/8$1,011
This Delta deal was found by Cheapflights users on 5/7. 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.
Mon 6/1510:16 am
IAD
-
SYD
2 stops30h 34m
Delta
Mon 6/299:15 am
SYD
-
IAD
2 stops29h 29m
Delta
Deal found 5/7$1,015
This Delta deal was found by Cheapflights users on 5/8. 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.
Mon 6/14:50 pm
DCA
-
SYD
1 stop24h 00m
Delta
Sat 7/259:15 am
SYD
-
DCA
1 stop20h 20m
Delta
Deal found 5/8$1,060
This Delta deal was found by Cheapflights users on 5/8. 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 6/144:45 pm
DCA
-
SYD
1 stop24h 05m
Delta
Thu 6/189:15 am
SYD
-
DCA
1 stop20h 20m
Delta
Deal found 5/8$1,061
This Delta deal was found by Cheapflights users on 5/7. 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.
Wed 9/24:00 pm
IAD
-
SYD
2 stops24h 50m
Delta
Sat 9/199:15 am
SYD
-
IAD
2 stops28h 14m
Delta
Deal found 5/7$1,065
This Delta deal was found by Cheapflights users on 5/8. 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 6/144:45 pm
DCA
-
SYD
1 stop24h 05m
Delta
Fri 6/199:15 am
SYD
-
DCA
2 stops38h 00m
Delta
Deal found 5/8$1,066
This American Airlines deal was found by Cheapflights users on 5/6. 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.
Sat 6/272:58 pm
BWI
-
MEL
1 stop24h 02m
American Airlines
Sat 7/111:35 pm
MEL
-
BWI
1 stop24h 24m
American Airlines
Deal found 5/6$1,072
This Delta deal was found by Cheapflights users on 5/8. 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 6/142:45 pm
DCA
-
SYD
2 stops50h 05m
Delta
Sat 6/209:15 am
SYD
-
DCA
1 stop20h 20m
Delta
Deal found 5/8$1,080
This American Airlines deal was found by Cheapflights users on 5/7. 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.
Thu 5/1411:31 am
BWI
-
MEL
2 stops29h 14m
American Airlines
Mon 5/259:45 am
MEL
-
BWI
2 stops24h 55m
American Airlines
Deal found 5/7$1,086
This KAYAK deal was found by Cheapflights users on 5/7. 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.
Fri 6/56:59 pm
BWI
-
MEL
1 stop23h 16m
Air New Zealand
Fri 7/109:30 am
MEL
-
BWI
1 stop22h 20m
Air New Zealand
Deal found 5/7$1,092
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Fri 5/86:35 pm
BWI
-
MEL
1 stop22h 55m
United Airlines
Sat 5/2310:55 am
MEL
-
BWI
1 stop21h 02m
United Airlines
Deal found 5/7$1,093

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

Keep the following information in mind while searching for Washington, D.C. to Australia flight deals. Data was last updated May 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,010
(Delta)

One-way from

$541
(Delta)

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.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Sydney Kingsford Smith flights.
Search Deals
From Washington, D.C. (WAS) to Australia
Search Deals
One-way flight from Washington, D.C. (WAS) to Australia
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($55 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 May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Australia 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 8, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 5/10

3:08 pm-6:50 am

2 stops25h 42m

Sydney Kingsford Smith

Sun 5/24

9:15 am-6:48 pm

2 stops23h 33m

$1,015

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Mon 6/1

4:50 pm-6:50 am

1 stop24h 00m

Sydney Kingsford Smith

Thu 7/23

9:15 am-3:35 pm

1 stop20h 20m

$1,060

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Thu 5/21

6:38 am-8:15 am

1 stop35h 37m

Melbourne

Fri 6/12

9:30 am-6:09 pm

1 stop22h 39m

$1,103

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Fri 6/5

10:11 am-6:50 am

2 stops30h 39m

Sydney Kingsford Smith

Fri 6/12

9:15 am-11:14 pm

2 stops27h 59m

$1,115
Quickest round-trip

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 7/26

7:23 pm-7:00 am

1 stop21h 37m

Sydney Kingsford Smith

Sun 8/16

9:30 am-4:31 pm

1 stop21h 01m

$1,160

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 6/14

6:59 pm-6:55 am

1 stop21h 56m

Sydney Kingsford Smith

Wed 7/1

9:30 am-12:28 am

2 stops28h 58m

$1,165

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Thu 5/28

6:59 pm-8:15 am

1 stop23h 16m

Melbourne

Fri 6/5

10:55 am-5:57 pm

1 stop21h 02m

$1,277

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Sun 6/7

10:40 am-8:15 am

2 stops31h 35m

Melbourne

Sun 6/14

10:55 am-11:47 am

2 stops38h 52m

$1,282

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 5/10

12:31 pm-6:50 am

2 stops28h 19m

Sydney Kingsford Smith

Sun 5/24

9:15 am-8:46 pm

2 stops25h 31m

$1,315

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 5/10

6:20 am-7:00 am

1 stop34h 40m

Sydney Kingsford Smith

Sun 5/24

10:20 am-11:47 am

2 stops39h 27m

$1,331

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/7

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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

Have a flexible travel schedule? Discover the best time to fly to Australia 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 Australia

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

The price you pay for your flight from Washington, D.C. to Australia may vary depending on when you book. For the best chance of a lower fare, look to book 24 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Australia (average of $78). Flying from Washington, D.C. to Australia in February is currently the most expensive (average of $318). 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.

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated May 8, 2026.
See what other customers who have flown with Air New Zealand,Delta, andQantas Airways from Washington, D.C. to Australia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very good
640 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.4

Entertainment

7.4

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Air New Zealand
8.0
Very good
640 reviews
Air New Zealand
8.0
Very good
640 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.4

Entertainment

7.4

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Delta
7.9
Good
8,457 reviews
Air New Zealand
8.0
Very good
640 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.4

Entertainment

7.4

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Qantas Airways
7.5
Good
1,033 reviews
Air New Zealand
8.0
Very good
640 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.4

Entertainment

7.4

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
United Airlines
7.4
Good
9,695 reviews
Air New Zealand
8.0
Very good
640 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.4

Entertainment

7.4

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
American Airlines
7.1
Good
11,673 reviews
Air New Zealand
8.0
Very good
640 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.4

Entertainment

7.4

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 Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For as low as $1,378, Delta can have you in Australia from Washington, D.C. in 24h 55m. There are 9480 mi between Washington, D.C. and Australia. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airlines for a one-way flight from Washington, D.C. to Australia are United Airlines ($462), Delta ($632), and Qantas Airways ($830).

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

    The most popular flight routes from Washington, D.C. to Australia are Washington, D.C. Dulles Intl - Sydney Kingsford Smith, Washington, D.C. Reagan-National - Sydney Kingsford Smith and Baltimore/Washington - Sydney Kingsford Smith.

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

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

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

    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 Australia.

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

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

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Australia (average of $78). Flying from Washington, D.C. to Australia in February is currently the most expensive (average of $318). 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

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.

Top 8 airlines flying from Washington, D.C. to Australia

Discover the top 8 airlines that operate flights from Washington, D.C. to Australia. 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 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$276Average$869FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$377Average$1,602FlexibilityNo cancel feeOn-time69%
Fiji AirwaysCheapest$719Average$768FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$787Average$1,274FlexibilityNo cancel feeOn-time67%
Qantas AirwaysCheapest$787Average$1,607FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$836Average$1,565FlexibilityNo cancel feeOn-time71%
Qatar AirwaysCheapest$1,195Average$2,421FlexibilityNo cancel feeOn-time68%
Air New ZealandCheapest$1,195Average$1,707FlexibilityNo cancel feeOn-time78%

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.