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$549+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SYD
May 26 — Jun 21
Tue 5/26
Tue 6/2
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 April 26, 2026.

This Trip.com deal was found by Cheapflights users on 4/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:00 am
IAD
-
SYD
3 stops39h 50m
Multiple Airlines
Mon 5/116:00 am
SYD
-
IAD
3 stops42h 12m
Multiple Airlines
Deal found 4/26$1,166
This Jetabroad deal was found by Cheapflights users on 4/22. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:57 pm
DCA
-
MEL
2 stops34h 23m
Multiple Airlines
Sat 8/297:30 am
MEL
-
DCA
2 stops29h 29m
Multiple Airlines
Deal found 4/22$1,179
This American Airlines deal was found by Cheapflights users on 4/25. 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.
Mon 5/44:11 pm
BWI
-
MEL
1 stop22h 49m
American Airlines
Mon 5/181:35 pm
MEL
-
BWI
1 stop23h 34m
American Airlines
Deal found 4/25$1,258
This Kissandfly.com deal was found by Cheapflights users on 4/25. 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.
Tue 6/94:23 pm
BWI
-
MEL
2 stops25h 52m
Lufthansa
Tue 6/1610:55 am
MEL
-
BWI
2 stops24h 31m
Lufthansa
Deal found 4/25$1,263
This American Airlines deal was found by Cheapflights users on 4/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/87:27 am
BWI
-
MEL
1 stop31h 33m
American Airlines
Mon 6/151:35 pm
MEL
-
BWI
1 stop24h 09m
American Airlines
Deal found 4/23$1,265
This American Airlines deal was found by Cheapflights users on 4/25. 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.
Mon 4/277:00 am
BWI
-
MEL
1 stop32h 00m
American Airlines
Fri 5/81:35 pm
MEL
-
BWI
1 stop23h 34m
American Airlines
Deal found 4/25$1,266
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/87:23 pm
BWI
-
MEL
1 stop22h 07m
United Airlines
Mon 6/1510:55 am
MEL
-
BWI
2 stops26h 35m
United Airlines
Deal found 4/23$1,267
This Kissandfly.com deal was found by Cheapflights users on 4/24. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/810:44 am
BWI
-
MEL
2 stops30h 46m
Lufthansa
Mon 6/1510:55 am
MEL
-
BWI
2 stops27h 38m
Lufthansa
Deal found 4/24$1,268
This United Airlines deal was found by Cheapflights users on 4/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/94:23 pm
BWI
-
MEL
2 stops25h 52m
United Airlines
Tue 6/1610:55 am
MEL
-
BWI
2 stops27h 38m
United Airlines
Deal found 4/24$1,270
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:23 pm
BWI
-
MEL
1 stop22h 07m
United Airlines
Wed 6/1710:55 am
MEL
-
BWI
1 stop21h 02m
United Airlines
Deal found 4/26$1,274
This American Airlines deal was found by Cheapflights users on 4/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/2510:06 am
BWI
-
BNE
2 stops28h 54m
American Airlines
Sun 6/78:35 pm
BNE
-
BWI
2 stops27h 28m
American Airlines
Deal found 4/24$1,325
This United Airlines deal was found by Cheapflights users on 4/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/266:22 am
BWI
-
SYD
1 stop34h 38m
United Airlines
Sun 5/109:30 am
SYD
-
BWI
1 stop21h 38m
United Airlines
Deal found 4/24$1,327

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 April 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,179
(Jetabroad)

One-way from

$549
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,297
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 ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 26, 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

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Thu 5/21

6:59 pm-8:15 am

1 stop23h 16m

Melbourne

Fri 6/12

10:55 am-5:57 pm

1 stop21h 02m

$1,277

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 5/27

3:00 pm-7:30 am

2 stops26h 30m

Melbourne

Sun 6/7

9:30 am-5:43 pm

1 stop22h 13m

$1,277

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Thu 5/14

6:20 pm-8:15 am

1 stop23h 55m

Melbourne

Mon 5/25

10:55 am-5:57 pm

1 stop21h 02m

$1,278

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Thu 5/21

3:00 pm-8:15 am

2 stops27h 15m

Melbourne

Thu 5/28

10:55 am-11:30 pm

2 stops26h 35m

$1,282

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 4/29

6:15 pm-8:15 am

1 stop24h 00m

Melbourne

Sat 5/9

10:55 am-10:03 am

2 stops37h 08m

$1,282

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Tue 6/9

4:23 pm-8:15 am

2 stops25h 52m

Melbourne

Tue 6/16

10:55 am-12:33 am

2 stops27h 38m

$1,282

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 6/10

3:03 pm-7:30 am

2 stops26h 27m

Melbourne

Wed 6/17

9:30 am-9:26 pm

2 stops25h 56m

$1,282

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 6/8

3:03 pm-7:30 am

2 stops26h 27m

Melbourne

Mon 6/15

10:55 am-12:33 am

2 stops27h 38m

$1,282

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 6/1

11:50 am-6:50 am

2 stops29h 00m

Sydney Kingsford Smith

Sat 7/25

9:15 am-11:13 pm

2 stops27h 58m

$1,395

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 6/30

5:16 pm-7:05 am

1 stop23h 49m

Sydney Kingsford Smith

Sun 8/23

12:00 pm-7:14 pm

1 stop21h 14m

$1,406

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 60 resultsSorted by cheapest first
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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 April 26, 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
635 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

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
635 reviews
Air New Zealand
8.0
Very good
635 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

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
8,459 reviews
Air New Zealand
8.0
Very good
635 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

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
1,027 reviews
Air New Zealand
8.0
Very good
635 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

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
9,657 reviews
Air New Zealand
8.0
Very good
635 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

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
11,673 reviews
Air New Zealand
8.0
Very good
635 reviews

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

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 $1,277, United Airlines can have you in Australia from Washington, D.C. in 23h 16m. There are 10200 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, 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 April 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$276Average$869FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$327Average$1,567FlexibilityNo cancel feeOn-time69%
Fiji AirwaysCheapest$719Average$768FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$787Average$1,274FlexibilityNo cancel feeOn-time67%
Qantas AirwaysCheapest$787Average$1,605FlexibilityNo 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%

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