HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Australia

$605+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SYD
Aug 19 — Aug 261
Wed 8/19
Wed 8/26
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 July 20, 2026.

This Trip.com deal was found by Cheapflights users on 7/19. 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.
Tue 9/111:05 am
IAD
-
SYD
3 stops45h 20m
Multiple Airlines
Mon 9/141:15 pm
SYD
-
IAD
3 stops43h 54m
Multiple Airlines
Deal found 7/19$1,133
This oojo deal was found by Cheapflights users on 7/19. 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.
Wed 9/93:57 pm
BWI
-
MEL
1 stop23h 03m
Qantas Airways
Wed 9/161:35 pm
MEL
-
BWI
1 stop21h 54m
Qantas Airways
Deal found 7/19$1,155
This Trip.com deal was found by Cheapflights users on 7/16. 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.
Sat 8/159:30 am
IAD
-
MEL
3 stops36h 30m
Multiple Airlines
Fri 8/211:30 pm
MEL
-
IAD
3 stops41h 44m
Multiple Airlines
Deal found 7/16$1,167
This oojo deal was found by Cheapflights users on 7/19. 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.
Mon 9/77:26 am
BWI
-
MEL
1 stop31h 34m
Qantas Airways
Wed 9/161:35 pm
MEL
-
BWI
1 stop21h 54m
Qantas Airways
Deal found 7/19$1,168
This oojo deal was found by Cheapflights users on 7/15. 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.
Mon 8/177:26 am
BWI
-
SYD
1 stop33h 29m
Qantas Airways
Wed 8/2612:00 pm
SYD
-
BWI
1 stop23h 34m
Qantas Airways
Deal found 7/15$1,170
This American Airlines deal was found by Cheapflights users on 7/18. 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.
Wed 8/123:55 pm
BWI
-
MEL
1 stop23h 05m
American Airlines
Wed 8/191:35 pm
MEL
-
BWI
1 stop21h 59m
American Airlines
Deal found 7/18$1,171
This Kiwi.com deal was found by Cheapflights users on 7/19. 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.
Sun 7/267:17 pm
BWI
-
SYD
1 stop21h 38m
Qantas Airways
Mon 8/1012:00 pm
SYD
-
BWI
1 stop25h 41m
Qantas Airways
Deal found 7/19$1,171
This oojo deal was found by Cheapflights users on 7/19. 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.
Sun 7/267:17 pm
BWI
-
SYD
1 stop21h 38m
Qantas Airways
Sun 8/2312:00 pm
SYD
-
BWI
1 stop21h 29m
Qantas Airways
Deal found 7/19$1,172
This Kiwi.com deal was found by Cheapflights users on 7/17. 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.
Mon 8/33:46 pm
BWI
-
SYD
1 stop25h 09m
Qantas Airways
Mon 8/1712:00 pm
SYD
-
BWI
1 stop25h 41m
Qantas Airways
Deal found 7/17$1,174
This United Airlines deal was found by Cheapflights users on 7/19. 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 8/93:03 pm
BWI
-
SYD
2 stops25h 57m
United Airlines
Wed 8/199:30 am
SYD
-
BWI
1 stop21h 05m
United Airlines
Deal found 7/19$1,177
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Mon 8/36:40 am
BWI
-
SYD
1 stop34h 15m
United Airlines
Mon 8/1710:20 am
SYD
-
BWI
2 stops39h 25m
United Airlines
Deal found 7/17$1,179
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Mon 8/171:15 pm
BWI
-
SYD
2 stops27h 40m
United Airlines
Sun 8/309:30 am
SYD
-
BWI
1 stop21h 05m
United Airlines
Deal found 7/17$1,180

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 July 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,133
(Trip.com)

One-way from

$605
(oojo)

Popular in

December

Cheapest in

April

Average price

$1,497
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. 4% potential increase in price ($68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 20, 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
Quickest round-trip

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 8/9

6:59 pm-6:55 am

1 stop21h 56m

Sydney Kingsford Smith

Sun 8/16

9:30 am-4:35 pm

1 stop21h 05m

$1,187

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 8/9

12:30 pm-6:50 am

2 stops28h 20m

Sydney Kingsford Smith

Sun 8/23

9:15 am-11:29 pm

2 stops28h 14m

$1,192

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 8/4

7:00 am-7:00 am

1 stop34h 00m

Sydney Kingsford Smith

Sun 9/27

9:30 am-4:37 pm

1 stop21h 07m

$1,198

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 9/9

10:21 am-7:50 am

2 stops31h 29m

Melbourne

Sun 9/20

10:00 am-6:18 am

2 stops34h 18m

$1,211

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 9/28

4:13 pm-8:15 am

2 stops26h 02m

Melbourne

Mon 10/5

11:55 am-11:44 pm

2 stops26h 49m

$1,215

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Sat 8/29

4:22 pm-8:15 am

2 stops25h 53m

Melbourne

Sat 9/5

10:55 am-10:09 am

2 stops37h 14m

$1,215

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 9/9

1:05 pm-7:30 am

2 stops28h 25m

Melbourne

Sun 9/20

9:30 am-4:35 pm

1 stop21h 05m

$1,216

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Sun 8/16

6:52 pm-8:15 am

1 stop23h 23m

Melbourne

Sun 8/23

9:30 am-7:15 am

2 stops35h 45m

$1,216

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 10/7

6:00 am-9:15 am

2 stops36h 15m

Melbourne

Wed 10/21

10:30 am-4:37 pm

1 stop21h 07m

$1,216

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Tue 12/1

6:31 pm-10:30 am

1 stop23h 59m

Melbourne

Wed 12/9

12:45 pm-11:00 pm

2 stops26h 15m

$1,216

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/19

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

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

Currently, May is the cheapest month in which you can book a flight from Washington, D.C. to Australia (average of $1,390). Flying from Washington, D.C. to Australia in December is currently the most expensive (average of $1,911). 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 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 37 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 July 20, 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
654 reviews

Comfort

8.0

Entertainment

7.4

Food

7.5

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Viren,Jun 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Air New Zealand
8.0
Very good
654 reviews
Air New Zealand
8.0
Very good
654 reviews

Comfort

8.0

Entertainment

7.4

Food

7.5

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Viren,Jun 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Delta
7.8
Good
8,477 reviews
Air New Zealand
8.0
Very good
654 reviews

Comfort

8.0

Entertainment

7.4

Food

7.5

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Viren,Jun 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Qantas Airways
7.5
Good
1,064 reviews
Air New Zealand
8.0
Very good
654 reviews

Comfort

8.0

Entertainment

7.4

Food

7.5

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Viren,Jun 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
United Airlines
7.4
Good
10,015 reviews
Air New Zealand
8.0
Very good
654 reviews

Comfort

8.0

Entertainment

7.4

Food

7.5

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Viren,Jun 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
American Airlines
7.1
Good
11,825 reviews
Air New Zealand
8.0
Very good
654 reviews

Comfort

8.0

Entertainment

7.4

Food

7.5

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Viren,Jun 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.

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 $1,187, United Airlines can have you in Australia from Washington, D.C. in 21h 56m. There are 9781 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 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, Baltimore/Washington - Sydney Kingsford Smith and Washington, D.C. Reagan-National - 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, May is the cheapest month in which you can book a flight from Washington, D.C. to Australia (average of $1,390). Flying from Washington, D.C. to Australia in December is currently the most expensive (average of $1,911). 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 7 airlines flying from Washington, D.C. to Australia

Discover the top 7 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 July 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$282Average$795FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$337Average$1,568FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$787Average$1,263FlexibilityNo cancel feeOn-time67%
Qantas AirwaysCheapest$787Average$1,590FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$836Average$1,500FlexibilityNo cancel feeOn-time71%
Air New ZealandCheapest$1,285Average$1,746FlexibilityNo cancel feeOn-time78%
Qatar AirwaysCheapest$2,062Average$2,421FlexibilityNo cancel feeOn-time68%

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.