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$490+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SYD
Jul 24 — Jul 311
Fri 7/24
Fri 7/31
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 June 24, 2026.

This Trip.com deal was found by Cheapflights users on 6/20. 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 8/49:50 am
IAD
-
SYD
3 stops36h 00m
Multiple Airlines
Tue 8/111:15 pm
SYD
-
IAD
3 stops35h 01m
Multiple Airlines
Deal found 6/20$996
This Trip.com deal was found by Cheapflights users on 6/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:48 am
IAD
-
BNE
3 stops36h 52m
Multiple Airlines
Thu 8/1311:55 am
BNE
-
IAD
3 stops43h 19m
Multiple Airlines
Deal found 6/23$1,005
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Mon 6/227:21 pm
BWI
-
MEL
1 stop22h 09m
United Airlines
Sun 7/510:55 am
MEL
-
BWI
1 stop21h 02m
United Airlines
Deal found 6/19$1,074
This United Airlines deal was found by Cheapflights users on 6/20. 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.
Thu 8/138:00 am
BWI
-
MEL
1 stop34h 15m
United Airlines
Fri 8/2810:55 am
MEL
-
BWI
1 stop34h 20m
United Airlines
Deal found 6/20$1,078
This American Airlines deal was found by Cheapflights users on 6/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/711:59 am
BWI
-
MEL
2 stops28h 46m
American Airlines
Fri 8/149:45 am
MEL
-
BWI
2 stops27h 56m
American Airlines
Deal found 6/22$1,084
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Wed 7/13:03 pm
BWI
-
MEL
2 stops26h 27m
United Airlines
Sat 7/1810:55 am
MEL
-
BWI
1 stop21h 02m
United Airlines
Deal found 6/19$1,091
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Fri 7/33:03 pm
BWI
-
MEL
2 stops26h 27m
United Airlines
Tue 7/1410:55 am
MEL
-
BWI
1 stop21h 02m
United Airlines
Deal found 6/19$1,095
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Sat 7/46:30 am
BWI
-
MEL
1 stop35h 45m
United Airlines
Fri 7/179:30 am
MEL
-
BWI
1 stop22h 20m
United Airlines
Deal found 6/19$1,101
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Wed 7/13:03 pm
BWI
-
MEL
2 stops26h 27m
United Airlines
Tue 7/146:00 am
MEL
-
BWI
2 stops25h 57m
United Airlines
Deal found 6/19$1,107
This American Airlines deal was found by Cheapflights users on 6/20. 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 7/13:00 pm
BWI
-
MEL
1 stop24h 00m
American Airlines
Wed 7/229:00 am
MEL
-
BWI
2 stops24h 24m
American Airlines
Deal found 6/20$1,110
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Wed 7/13:03 pm
BWI
-
MEL
2 stops26h 27m
United Airlines
Mon 7/137:15 am
MEL
-
BWI
2 stops24h 42m
United Airlines
Deal found 6/19$1,112
This United Airlines deal was found by Cheapflights users on 6/19. 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 6/286:59 pm
BWI
-
MEL
2 stops26h 21m
United Airlines
Wed 7/1510:55 am
MEL
-
BWI
1 stop21h 02m
United Airlines
Deal found 6/19$1,115

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 June 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$996
(Trip.com)

One-way from

$490
(Trip.com)

Popular in

December

Cheapest in

April

Average price

$1,562
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. 6% potential increase in price ($96 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 June 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 June 24, 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

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Sat 7/4

7:00 am-8:15 am

2 stops35h 15m

Melbourne

Tue 7/14

10:55 am-5:57 pm

1 stop21h 02m

$1,095

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Thu 7/2

7:23 pm-10:35 am

2 stops25h 12m

Melbourne

Sat 7/18

10:55 am-9:32 pm

2 stops24h 37m

$1,124

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Fri 6/26

6:59 pm-7:30 am

1 stop22h 31m

Melbourne

Sat 7/4

10:55 am-5:59 pm

1 stop21h 04m

$1,200
Quickest round-trip

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 7/29

7:23 pm-7:30 am

1 stop22h 07m

Melbourne

Wed 8/5

10:55 am-5:57 pm

1 stop21h 02m

$1,200

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 9/16

4:18 pm-7:30 am

2 stops25h 12m

Melbourne

Sun 9/27

9:30 am-4:37 pm

1 stop21h 07m

$1,205

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Thu 8/6

12:55 pm-8:15 am

2 stops29h 20m

Melbourne

Thu 8/13

10:55 am-10:09 am

2 stops37h 14m

$1,205

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Fri 8/28

3:04 pm-7:30 am

2 stops26h 26m

Melbourne

Sat 11/21

12:45 pm-9:07 pm

2 stops24h 22m

$1,205

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 8/19

4:18 pm-6:55 am

2 stops24h 37m

Sydney Kingsford Smith

Fri 9/4

9:30 am-7:34 pm

2 stops24h 04m

$1,242

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 8/2

10:33 am-6:50 am

2 stops30h 17m

Sydney Kingsford Smith

Sun 8/23

9:15 am-11:18 pm

2 stops28h 03m

$1,422

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/3

10:25 am-6:50 am

2 stops30h 25m

Sydney Kingsford Smith

Mon 8/10

9:15 am-11:18 pm

2 stops28h 03m

$1,423

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/19

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 $78). Flying from Washington, D.C. to Australia in June is currently the most expensive (average of $365). 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 24 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 June 24, 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
645 reviews

Comfort

7.9

Entertainment

7.4

Overall

8.0

Boarding

8.2

Crew

8.5

Food

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
645 reviews
Air New Zealand
8.0
Very good
645 reviews

Comfort

7.9

Entertainment

7.4

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.4

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Delta
7.8
Good
8,431 reviews
Air New Zealand
8.0
Very good
645 reviews

Comfort

7.9

Entertainment

7.4

Overall

8.0

Boarding

8.2

Crew

8.5

Food

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
1,050 reviews
Air New Zealand
8.0
Very good
645 reviews

Comfort

7.9

Entertainment

7.4

Overall

8.0

Boarding

8.2

Crew

8.5

Food

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
9,879 reviews
Air New Zealand
8.0
Very good
645 reviews

Comfort

7.9

Entertainment

7.4

Overall

8.0

Boarding

8.2

Crew

8.5

Food

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
11,750 reviews
Air New Zealand
8.0
Very good
645 reviews

Comfort

7.9

Entertainment

7.4

Overall

8.0

Boarding

8.2

Crew

8.5

Food

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 $1,477, United Airlines can have you in Australia from Washington, D.C. in 25h 20m. There are 9439 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, 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 June is currently the most expensive (average of $365). 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 June 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$282Average$922FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$377Average$1,601FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$787Average$1,608FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$836Average$1,607FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$839Average$1,316FlexibilityNo cancel feeOn-time67%
Air New ZealandCheapest$1,285Average$1,793FlexibilityNo cancel feeOn-time78%
Qatar AirwaysCheapest$2,062Average$2,421FlexibilityNo cancel feeOn-time68%

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