Cheap flights from Washington, D.C. to Australia from $523

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 8/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Washington, D.C. to Australia

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
3:00 pm - 5:00 am
BWI
-
MEL
24h 00m
1 stop
American Airlines Logo
1:35 pm - 11:43 pm
MEL
-
BWI
24h 08m
1 stop
$1,262American Airlines
Mon, Jun 22 - Wed, Jul 8
Multiple Airlines Logo
9:30 am - 12:00 pm
IAD
-
MEL
36h 30m
3 stops
Multiple Airlines Logo
1:30 pm - 12:53 pm
MEL
-
IAD
37h 23m
3 stops
$1,263Multiple Airlines
Sat, Aug 15 - Mon, Aug 31
United Airlines Logo
3:03 pm - 7:30 am
BWI
-
MEL
26h 27m
2 stops
United Airlines Logo
9:30 am - 4:31 pm
MEL
-
BWI
21h 01m
1 stop
$1,277United Airlines
Mon, Jul 27 - Sun, Aug 16
United Airlines Logo
4:23 pm - 8:15 am
BWI
-
MEL
25h 52m
2 stops
United Airlines Logo
10:55 am - 5:57 pm
MEL
-
BWI
21h 02m
1 stop
$1,278United Airlines
Thu, May 28 - Fri, Jun 5
Delta Logo
12:00 pm - 8:50 am
BWI
-
MEL
29h 50m
2 stops
Delta Logo
12:00 pm - 8:46 pm
MEL
-
BWI
24h 46m
2 stops
$1,290Delta
Wed, Oct 14 - Wed, Nov 4
Delta Logo
1:59 pm - 6:50 am
BWI
-
SYD
26h 51m
2 stops
Delta Logo
9:15 am - 9:25 pm
SYD
-
BWI
26h 10m
2 stops
$1,314Delta
Sun, May 31 - Sun, Jun 7
Qantas Airways Logo
7:20 pm - 11:30 am
BWI
-
BNE
26h 10m
2 stops
Qantas Airways Logo
7:10 pm - 9:27 pm
BNE
-
BWI
40h 17m
2 stops
$1,408Qantas Airways
Sun, Sep 6 - Tue, Sep 15
Qantas Airways Logo
3:48 pm - 11:35 am
BWI
-
BNE
29h 47m
2 stops
Qantas Airways Logo
9:15 am - 2:30 pm
BNE
-
BWI
20h 15m
1 stop
$1,456Qantas Airways
Sat, Oct 17 - Thu, Nov 12
Air New Zealand Logo
2:51 pm - 11:05 am
IAD
-
BNE
30h 14m
2 stops
Air New Zealand Logo
9:40 am - 12:31 am
BNE
-
IAD
28h 51m
2 stops
$1,621Air New Zealand
Wed, Jun 3 - Wed, Jun 10
Air New Zealand Logo
5:35 pm - 11:05 am
IAD
-
BNE
27h 30m
2 stops
Air New Zealand Logo
9:40 am - 12:40 am
BNE
-
IAD
29h 00m
2 stops
$1,632Air New Zealand
Sun, Sep 6 - Tue, Sep 15

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Fiji Airways flights from Washington, D.C. to Australia

Our best Fiji Airways deals on Washington, D.C. to Australia flight tickets
Fiji Airways
Aug 22
DCA6:57 pmWashington, D.C. Reagan-National
26h 53m
2 stops
SYD11:50 amSydney Kingsford Smith
Aug 29
SYD1:15 pmSydney Kingsford Smith
23h 44m
2 stops
DCA10:59 pmWashington, D.C. Reagan-National
$1,485
Fiji Airways
Aug 22
DCA6:57 pmWashington, D.C. Reagan-National
26h 53m
2 stops
SYD11:50 amSydney Kingsford Smith
Aug 29
SYD1:15 pmSydney Kingsford Smith
23h 44m
2 stops
DCA10:59 pmWashington, D.C. Reagan-National
$1,486

United Airlines flights from Washington, D.C. to Australia

Our best United Airlines deals on Washington, D.C. to Australia flight tickets
United Airlines
Jul 27
BWI3:03 pmBaltimore/Washington
26h 27m
2 stops
MEL7:30 amMelbourne
Aug 16
MEL9:30 amMelbourne
21h 01m
1 stop
BWI4:31 pmBaltimore/Washington
$1,277
United Airlines
May 28
BWI4:23 pmBaltimore/Washington
25h 52m
2 stops
MEL8:15 amMelbourne
Jun 5
MEL10:55 amMelbourne
21h 02m
1 stop
BWI5:57 pmBaltimore/Washington
$1,278
United Airlines
Aug 13
BWI4:23 pmBaltimore/Washington
25h 52m
2 stops
MEL8:15 amMelbourne
Aug 31
MEL10:55 amMelbourne
27h 48m
2 stops
BWI12:43 amBaltimore/Washington
$1,282

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 5, 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

Mon 6/22

3:00 pm-5:00 am

1 stop24h 00m

Melbourne

Wed 7/8

1:35 pm-11:43 pm

1 stop24h 08m

$1,262

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Sat 8/15

9:30 am-12:00 pm

3 stops36h 30m

Melbourne

Mon 8/31

1:30 pm-12:53 pm

3 stops37h 23m

$1,263

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 7/27

3:03 pm-7:30 am

2 stops26h 27m

Melbourne

Sun 8/16

9:30 am-4:31 pm

1 stop21h 01m

$1,277
Quickest round-trip

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Thu 5/28

4:23 pm-8:15 am

2 stops25h 52m

Melbourne

Fri 6/5

10:55 am-5:57 pm

1 stop21h 02m

$1,278

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 10/14

12:00 pm-8:50 am

2 stops29h 50m

Melbourne

Wed 11/4

12:00 pm-8:46 pm

2 stops24h 46m

$1,290

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 5/31

1:59 pm-6:50 am

2 stops26h 51m

Sydney Kingsford Smith

Sun 6/7

9:15 am-9:25 pm

2 stops26h 10m

$1,314

BaltimoreBrisbane

BWI - BNE

BWIBNE

Baltimore/Washington

Sun 9/6

7:20 pm-11:30 am

2 stops26h 10m

Brisbane

Tue 9/15

7:10 pm-9:27 pm

2 stops40h 17m

$1,408

BaltimoreBrisbane

BWI - BNE

BWIBNE

Baltimore/Washington

Sat 10/17

3:48 pm-11:35 am

2 stops29h 47m

Brisbane

Thu 11/12

9:15 am-2:30 pm

1 stop20h 15m

$1,456

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Wed 6/3

2:51 pm-11:05 am

2 stops30h 14m

Brisbane

Wed 6/10

9:40 am-12:31 am

2 stops28h 51m

$1,621

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Sun 9/6

5:35 pm-11:05 am

2 stops27h 30m

Brisbane

Tue 9/15

9:40 am-12:40 am

2 stops29h 00m

$1,632

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 $1,636 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 3% 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

22h 09m

Direct flights

None
The fastest flight from Washington, D.C. to Australia takes 22h 09m
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
8,459 reviews
Search Delta flights
United AirlinesPriceFrom $377Free CancellationRating
7.4
9,684 reviews
Search United Airlines flights
Fiji AirwaysPriceFrom $719Free CancellationRating
8.1
240 reviews
Search Fiji Airways flights
Air CanadaPriceFrom $787Free CancellationRating
7.1
11,000 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $787Free CancellationRating
7.5
1,033 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $836Free CancellationRating
7.1
11,667 reviews
Search American Airlines flights
Qatar AirwaysPriceFrom $1,195Free CancellationRating
7.4
3,727 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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1 adult
Thu 6/4
Thu 6/11

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