Cheap flights from Washington, D.C. to Australia from $541

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Australia departing on 5/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
4:50 pm - 6:50 am
DCA
-
SYD
24h 00m
1 stop
Delta Logo
9:15 am - 3:35 pm
SYD
-
DCA
20h 20m
1 stop
$1,010Delta
Mon, Jun 1 - Sun, Jun 7
Delta Logo
4:50 pm - 6:50 am
DCA
-
SYD
24h 00m
1 stop
Delta Logo
9:15 am - 3:35 pm
SYD
-
DCA
20h 20m
1 stop
$1,011Delta
Mon, Jun 1 - Sun, Jun 7
American Airlines Logo
2:58 pm - 5:00 am
BWI
-
MEL
24h 02m
1 stop
American Airlines Logo
1:35 pm - 11:59 pm
MEL
-
BWI
24h 24m
1 stop
$1,072American Airlines
Sat, Jun 27 - Sat, Jul 11
American Airlines Logo
11:31 am - 6:45 am
BWI
-
MEL
29h 14m
2 stops
American Airlines Logo
9:45 am - 8:40 pm
MEL
-
BWI
24h 55m
2 stops
$1,086American Airlines
Thu, May 14 - Mon, May 25
Air New Zealand Logo
6:59 pm - 8:15 am
BWI
-
MEL
23h 16m
1 stop
Air New Zealand Logo
9:30 am - 5:50 pm
MEL
-
BWI
22h 20m
1 stop
$1,092Air New Zealand
Fri, Jun 5 - Fri, Jul 10
United Airlines Logo
6:20 pm - 8:15 am
BWI
-
MEL
23h 55m
1 stop
United Airlines Logo
10:55 am - 5:57 pm
MEL
-
BWI
21h 02m
1 stop
$1,093United Airlines
Thu, May 14 - Mon, May 25
United Airlines Logo
3:00 pm - 7:30 am
BWI
-
MEL
26h 30m
2 stops
United Airlines Logo
10:55 am - 5:57 pm
MEL
-
BWI
21h 02m
1 stop
$1,094United Airlines
Mon, Jun 1 - Mon, Jun 15
Air New Zealand Logo
8:25 am - 7:30 am
BWI
-
MEL
33h 05m
2 stops
Air New Zealand Logo
10:55 am - 12:28 am
MEL
-
BWI
27h 33m
2 stops
$1,096Air New Zealand
Fri, Jun 5 - Fri, Jul 10
Qantas Airways Logo
7:10 pm - 6:30 am
BWI
-
BNE
21h 20m
1 stop
Qantas Airways Logo
9:15 am - 2:30 pm
BNE
-
BWI
20h 15m
1 stop
$1,363Qantas Airways
Tue, Oct 27 - Tue, Nov 3
Qantas Airways Logo
7:26 am - 8:20 am
BWI
-
BNE
34h 54m
2 stops
Qantas Airways Logo
9:15 am - 6:17 pm
BNE
-
BWI
24h 02m
1 stop
$1,377Qantas Airways
Sat, Oct 17 - Thu, Nov 12

Air New Zealand flights from Washington, D.C. to Australia

Our best Air New Zealand deals on Washington, D.C. to Australia flight tickets
Air New Zealand
Jun 5
BWI6:59 pmBaltimore/Washington
23h 16m
1 stop
MEL8:15 amMelbourne
Jul 10
MEL9:30 amMelbourne
22h 20m
1 stop
BWI5:50 pmBaltimore/Washington
$1,092
Air New Zealand
Jun 5
BWI8:25 amBaltimore/Washington
33h 05m
2 stops
MEL7:30 amMelbourne
Jul 10
MEL10:55 amMelbourne
27h 33m
2 stops
BWI12:28 amBaltimore/Washington
$1,096
Air New Zealand
Aug 4
BWI3:03 pmBaltimore/Washington
25h 57m
1 stop
SYD7:00 amSydney Kingsford Smith
Sep 27
SYD9:30 amSydney Kingsford Smith
21h 05m
1 stop
BWI4:35 pmBaltimore/Washington
$1,162

Air Canada flights from Washington, D.C. to Australia

Our best Air Canada deals on Washington, D.C. to Australia flight tickets
Air Canada
Jun 24
IAD3:45 pmWashington, D.C. Dulles Intl
25h 35m
2 stops
SYD7:20 amSydney Kingsford Smith
Jul 15
SYD9:20 amSydney Kingsford Smith
23h 41m
2 stops
IAD7:01 pmWashington, D.C. Dulles Intl
$1,417
Air Canada
Aug 4
IAD3:45 pmWashington, D.C. Dulles Intl
25h 35m
2 stops
SYD7:20 amSydney Kingsford Smith
Sep 27
SYD9:20 amSydney Kingsford Smith
23h 40m
2 stops
IAD7:00 pmWashington, D.C. Dulles Intl
$1,482
Air Canada
Jun 3
IAD12:35 pmWashington, D.C. Dulles Intl
28h 45m
2 stops
SYD7:20 amSydney Kingsford Smith
Jun 10
SYD9:20 amSydney Kingsford Smith
25h 53m
2 stops
IAD9:13 pmWashington, D.C. Dulles Intl
$1,484

momondo 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, momondo users made 832,500 searches. Data last updated May 10, 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

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Mon 6/1

4:50 pm-6:50 am

1 stop24h 00m

Sydney Kingsford Smith

Sun 6/7

9:15 am-3:35 pm

1 stop20h 20m

$1,010

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

Sun 6/7

9:15 am-3:35 pm

1 stop20h 20m

$1,011

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Sat 6/27

2:58 pm-5:00 am

1 stop24h 02m

Melbourne

Sat 7/11

1:35 pm-11:59 pm

1 stop24h 24m

$1,072

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Thu 5/14

11:31 am-6:45 am

2 stops29h 14m

Melbourne

Mon 5/25

9:45 am-8:40 pm

2 stops24h 55m

$1,086

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Fri 6/5

6:59 pm-8:15 am

1 stop23h 16m

Melbourne

Fri 7/10

9:30 am-5:50 pm

1 stop22h 20m

$1,092

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

$1,093

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 6/1

3:00 pm-7:30 am

2 stops26h 30m

Melbourne

Mon 6/15

10:55 am-5:57 pm

1 stop21h 02m

$1,094

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Fri 6/5

8:25 am-7:30 am

2 stops33h 05m

Melbourne

Fri 7/10

10:55 am-12:28 am

2 stops27h 33m

$1,096
Quickest round-trip

BaltimoreBrisbane

BWI - BNE

BWIBNE

Baltimore/Washington

Tue 10/27

7:10 pm-6:30 am

1 stop21h 20m

Brisbane

Tue 11/3

9:15 am-2:30 pm

1 stop20h 15m

$1,363

BaltimoreBrisbane

BWI - BNE

BWIBNE

Baltimore/Washington

Sat 10/17

7:26 am-8:20 am

2 stops34h 54m

Brisbane

Thu 11/12

9:15 am-6:17 pm

1 stop24h 02m

$1,377

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Australia from

How to get the cheapest flight ticket from Washington, D.C. to Australia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Australia?

The month of August is, on average, the cheapest month to fly to Australia from Washington, D.C., with most prices found around $78. If you aren’t able to travel during the month of August, then book flights to Australia from Washington, D.C. during September instead. Flights to Australia in September, while not as cheap as those in August, still average around $82.

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

You are more likely to see cheaper flights to Australia from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,622 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Washington, D.C. for as low as $758 on momondo.

Can stopping save me money on Washington, D.C. to Australia flights?

You could potentially save up to 24% on your flight if you consider stops on a Washington, D.C. to Australia flight.

Cheap Washington, D.C. to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Australia

Fastest flight time

21h 56m

Direct flights

None
The fastest flight from Washington, D.C. to Australia takes 21h 56m
There are no direct flights from Washington, D.C. to Australia. There are no popular flight routes from Washington, D.C. to Australia.

Frequently asked questions about flying from Washington, D.C. to Australia

  • When did momondo last update prices for flights from Washington, D.C. to Australia?

    Prices for flights from Washington, D.C. to Australia refresh daily.

  • How many operators does momondo search for flights from Washington, D.C. to Australia?

  • How old do you have to be to fly from Washington, D.C. to Australia?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Australia.

  • What documentation or ID do you need to fly to Australia?

    The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Washington, D.C. to Australia

Compare and see reviews for airlines that fly from Washington, D.C. to Australia with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $276Free CancellationRating
7.9
8,454 reviews
Search Delta flights
United AirlinesPriceFrom $377Free CancellationRating
7.4
9,695 reviews
Search United Airlines flights
Fiji AirwaysPriceFrom $719Free CancellationRating
8.1
240 reviews
Search Fiji Airways flights
Air CanadaPriceFrom $787Free CancellationRating
7.1
11,014 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $787Free CancellationRating
7.5
1,034 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $836Free CancellationRating
7.1
11,668 reviews
Search American Airlines flights
Qatar AirwaysPriceFrom $1,195Free CancellationRating
7.4
3,728 reviews
Search Qatar Airways flights
Air New ZealandPriceFrom $1,195Free CancellationRating
8.0
640 reviews
Search Air New Zealand flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Australia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Australia for you.

Can I find flights from Washington, D.C. to Australia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to Australia flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Australia?

Once you have performed a search for Washington, D.C. to Australia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to Australia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington, D.C. to Australia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Tue 6/9
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