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$481+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SYD
Apr 27 — May 41
Mon 4/27
Mon 5/4
1 adult, Economy
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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 March 28, 2026.

This Trip.com deal was found by Cheapflights users on 3/27. 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 5/27:05 am
IAD
-
MEL
3 stops38h 55m
Multiple Airlines
Sun 5/101:30 pm
MEL
-
IAD
3 stops34h 42m
Multiple Airlines
Deal found 3/27$1,000
This Air Canada deal was found by Cheapflights users on 3/23. 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.
Tue 5/56:00 am
DCA
-
BNE
2 stops35h 05m
Air Canada
Tue 5/1210:00 am
BNE
-
DCA
2 stops38h 19m
Air Canada
Deal found 3/23$1,001
This FlightHub deal was found by Cheapflights users on 3/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/110:10 pm
IAD
-
BNE
2 stops42h 55m
Air Canada
Mon 6/810:00 am
BNE
-
IAD
2 stops44h 35m
Air Canada
Deal found 3/24$1,004
This Air Canada deal was found by Cheapflights users on 3/23. 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.
Tue 5/59:45 am
IAD
-
BNE
2 stops31h 20m
Air Canada
Tue 5/1210:00 am
BNE
-
IAD
2 stops24h 29m
Air Canada
Deal found 3/23$1,006
This Trip.com deal was found by Cheapflights users on 3/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1211:07 am
IAD
-
MEL
3 stops34h 53m
Multiple Airlines
Tue 5/191:25 pm
MEL
-
IAD
3 stops40h 57m
Multiple Airlines
Deal found 3/28$1,034
This Air Canada deal was found by Cheapflights users on 3/23. 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.
Fri 5/299:40 am
DCA
-
BNE
2 stops31h 25m
Air Canada
Tue 6/910:15 am
BNE
-
DCA
2 stops25h 40m
Air Canada
Deal found 3/23$1,038
This Justfly.com deal was found by Cheapflights users on 3/26. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1312:45 pm
DCA
-
BNE
2 stops52h 20m
Air Canada
Fri 7/1010:00 am
BNE
-
DCA
2 stops40h 00m
Air Canada
Deal found 3/26$1,040
This Justfly.com deal was found by Cheapflights users on 3/26. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/135:06 pm
IAD
-
BNE
2 stops47h 59m
Air Canada
Fri 7/1010:00 am
BNE
-
IAD
2 stops49h 13m
Air Canada
Deal found 3/26$1,040
This Air Canada deal was found by Cheapflights users on 3/27. 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.
Fri 5/89:40 am
DCA
-
BNE
2 stops31h 25m
Multiple Airlines
Wed 5/1310:00 am
BNE
-
DCA
2 stops25h 05m
Multiple Airlines
Deal found 3/27$1,043
This Air Canada deal was found by Cheapflights users on 3/23. 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.
Fri 5/299:45 am
IAD
-
BNE
2 stops31h 20m
Air Canada
Tue 6/910:15 am
BNE
-
IAD
2 stops24h 14m
Air Canada
Deal found 3/23$1,043
This Priceline deal was found by Cheapflights users on 3/23. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/294:13 pm
DCA
-
BNE
2 stops24h 52m
Air Canada
Fri 10/210:00 am
BNE
-
DCA
2 stops25h 50m
Air Canada
Deal found 3/23$1,067
This FlightHub deal was found by Cheapflights users on 3/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/19:45 am
IAD
-
BNE
2 stops31h 20m
Air Canada
Mon 6/1510:00 am
BNE
-
IAD
2 stops39h 12m
Air Canada
Deal found 3/24$1,067

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 March 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,000
(Trip.com)

One-way from

$481
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$1,569
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 ($67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 28, 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

5:59 pm-6:55 am

1 stop22h 56m

Sydney Kingsford Smith

Tue 5/19

12:00 pm-11:26 pm

1 stop25h 26m

$1,183

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sat 5/30

5:16 pm-7:05 am

1 stop23h 49m

Sydney Kingsford Smith

Wed 6/3

12:00 pm-9:30 pm

1 stop23h 30m

$1,234

Washington, D.C.Brisbane

DCA - BNE

DCABNE

Washington, D.C. Reagan-National

Sun 5/31

12:45 pm-7:05 am

2 stops28h 20m

Brisbane

Thu 6/4

10:15 am-12:01 pm

2 stops39h 46m

$1,240

Washington, D.C.Melbourne

DCA - MEL

DCAMEL

Washington, D.C. Reagan-National

Sat 4/25

4:59 pm-10:35 am

2 stops27h 36m

Melbourne

Sat 5/2

6:00 am-8:35 pm

2 stops28h 35m

$1,401

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Fri 5/8

5:59 pm-10:05 am

2 stops26h 06m

Brisbane

Fri 5/15

8:35 pm-5:40 am

1 stop23h 05m

$1,422
Quickest round-trip

Washington, D.C.Brisbane

DCA - BNE

DCABNE

Washington, D.C. Reagan-National

Sat 5/23

5:16 pm-5:00 am

1 stop21h 44m

Brisbane

Fri 6/19

8:45 am-7:13 pm

2 stops24h 28m

$1,425

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 8/4

3:03 pm-7:00 am

2 stops25h 57m

Sydney Kingsford Smith

Sun 9/27

9:30 am-4:47 pm

1 stop21h 17m

$1,468

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 5/24

3:03 pm-7:00 am

2 stops25h 57m

Sydney Kingsford Smith

Sun 6/14

9:30 am-5:43 pm

1 stop22h 13m

$1,468

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 5/31

3:03 pm-6:55 am

2 stops25h 52m

Sydney Kingsford Smith

Sun 6/7

9:30 am-10:45 pm

2 stops27h 15m

$1,473

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Sun 5/31

6:30 am-8:15 am

1 stop35h 45m

Melbourne

Sat 8/8

10:55 am-7:10 am

1 stop34h 15m

$1,489

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 60 resultsSorted by cheapest first
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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, August is the cheapest month in which you can book a flight from Washington, D.C. to Australia (average of $132). Flying from Washington, D.C. to Australia in March is currently the most expensive (average of $855). 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 March 28, 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
621 reviews

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Entertainment

7.4

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
621 reviews
Air New Zealand
8.0
Very good
621 reviews

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Entertainment

7.4

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
8,352 reviews
Air New Zealand
8.0
Very good
621 reviews

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Entertainment

7.4

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
1,013 reviews
Air New Zealand
8.0
Very good
621 reviews

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Entertainment

7.4

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
9,500 reviews
Air New Zealand
8.0
Very good
621 reviews

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Entertainment

7.4

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
11,519 reviews
Air New Zealand
8.0
Very good
621 reviews

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Entertainment

7.4

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 $1,183, Qantas Airways can have you in Australia from Washington, D.C. in 22h 56m. There are 9737 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 Delta ($632), United Airlines ($794), 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, 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, August is the cheapest month in which you can book a flight from Washington, D.C. to Australia (average of $132). Flying from Washington, D.C. to Australia in March is currently the most expensive (average of $855). 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 March 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$276Average$869FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$346Average$1,528FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$787Average$1,457FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$836Average$1,604FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$839Average$1,214FlexibilityNo cancel feeOn-time67%
Qatar AirwaysCheapest$1,195Average$2,397FlexibilityNo cancel feeOn-time68%
Air New ZealandCheapest$1,195Average$1,667FlexibilityNo cancel feeOn-time78%

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