Cheap flights from Washington, D.C. to Australia from $497

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 8/12. 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
1 adult, Economy, 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.
Multiple Airlines Logo
11:11 am - 10:35 am
IAD
-
BNE
33h 24m
3 stops
Multiple Airlines Logo
11:35 am - 5:14 pm
BNE
-
IAD
43h 39m
3 stops
$991Multiple Airlines
Wed, Aug 12 - Wed, Aug 19
Multiple Airlines Logo
6:05 am - 10:35 am
BWI
-
BNE
38h 30m
3 stops
Multiple Airlines Logo
11:35 am - 12:24 pm
BNE
-
BWI
38h 49m
3 stops
$1,005Multiple Airlines
Wed, Aug 12 - Wed, Aug 19
Air New Zealand Logo
7:23 pm - 7:00 am
BWI
-
SYD
21h 37m
1 stop
Air New Zealand Logo
9:30 am - 4:35 pm
SYD
-
BWI
21h 05m
1 stop
$1,175Air New Zealand
Sun, Aug 9 - Sun, Aug 23
Air New Zealand Logo
8:00 am - 8:45 am
BWI
-
SYD
33h 45m
2 stops
Air New Zealand Logo
9:55 am - 9:07 pm
SYD
-
BWI
27h 12m
2 stops
$1,176Air New Zealand
Sun, Oct 4 - Wed, Nov 4
Qantas Airways Logo
3:55 pm - 6:55 am
BWI
-
SYD
25h 00m
1 stop
Qantas Airways Logo
12:00 pm - 10:59 pm
SYD
-
BWI
24h 59m
1 stop
$1,182Qantas Airways
Mon, Aug 31 - Mon, Sep 14
United Airlines Logo
6:52 pm - 6:55 am
BWI
-
SYD
22h 03m
1 stop
United Airlines Logo
9:30 am - 4:35 pm
SYD
-
BWI
21h 05m
1 stop
$1,186United Airlines
Mon, Aug 31 - Mon, Sep 14
Qantas Airways Logo
3:23 pm - 6:30 am
BWI
-
BNE
24h 07m
1 stop
Qantas Airways Logo
9:40 am - 6:17 pm
BNE
-
BWI
23h 37m
1 stop
$1,186Qantas Airways
Sun, Nov 1 - Sat, Nov 21
American Airlines Logo
1:55 pm - 7:30 am
BWI
-
SYD
27h 35m
2 stops
American Airlines Logo
9:25 pm - 9:49 am
SYD
-
BWI
26h 24m
2 stops
$1,187American Airlines
Sun, Aug 9 - Sun, Aug 23
American Airlines Logo
11:59 am - 6:45 am
BWI
-
MEL
28h 46m
2 stops
American Airlines Logo
9:45 am - 9:59 pm
MEL
-
BWI
26h 14m
2 stops
$1,193American Airlines
Sat, Aug 15 - Sat, Aug 22
United Airlines Logo
6:38 am - 6:55 am
BWI
-
SYD
34h 17m
1 stop
United Airlines Logo
9:30 am - 4:35 pm
SYD
-
BWI
21h 05m
1 stop
$1,197United Airlines
Sun, Jul 26 - Sun, Aug 23

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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 5
BWI7:23 pmBaltimore/Washington
21h 37m
1 stop
SYD7:00 amSydney Kingsford Smith
Jul 19
SYD10:20 amSydney Kingsford Smith
39h 27m
2 stops
BWI11:47 amBaltimore/Washington
$1,176
United Airlines
Jul 6
BWI7:00 amBaltimore/Washington
34h 00m
1 stop
SYD7:00 amSydney Kingsford Smith
Jul 19
SYD9:30 amSydney Kingsford Smith
35h 47m
1 stop
BWI7:17 amBaltimore/Washington
$1,178
United Airlines
Jul 5
BWI7:23 pmBaltimore/Washington
21h 37m
1 stop
SYD7:00 amSydney Kingsford Smith
Jul 19
SYD9:30 amSydney Kingsford Smith
28h 58m
2 stops
BWI12:28 amBaltimore/Washington
$1,180

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

Our best Air Canada deals on Washington, D.C. to Australia flight tickets
Air Canada
Jul 5
IAD3:45 pmWashington, D.C. Dulles Intl
25h 35m
2 stops
SYD7:20 amSydney Kingsford Smith
Jul 19
SYD9:20 amSydney Kingsford Smith
23h 41m
2 stops
IAD7:01 pmWashington, D.C. Dulles Intl
$1,419
Air Canada
Jul 5
IAD3:45 pmWashington, D.C. Dulles Intl
25h 35m
2 stops
SYD7:20 amSydney Kingsford Smith
Jul 19
SYD9:20 amSydney Kingsford Smith
23h 41m
2 stops
IAD7:01 pmWashington, D.C. Dulles Intl
$1,459
Air Canada
Jul 6
IAD8:25 amWashington, D.C. Dulles Intl
32h 55m
1 stop
SYD7:20 amSydney Kingsford Smith
Jul 19
SYD9:20 amSydney Kingsford Smith
23h 41m
2 stops
IAD7:01 pmWashington, D.C. Dulles Intl
$1,468

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 July 2, 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.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Wed 8/12

11:11 am-10:35 am

3 stops33h 24m

Brisbane

Wed 8/19

11:35 am-5:14 pm

3 stops43h 39m

$991

BaltimoreBrisbane

BWI - BNE

BWIBNE

Baltimore/Washington

Wed 8/12

6:05 am-10:35 am

3 stops38h 30m

Brisbane

Wed 8/19

11:35 am-12:24 pm

3 stops38h 49m

$1,005
Quickest round-trip

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 8/9

7:23 pm-7:00 am

1 stop21h 37m

Sydney Kingsford Smith

Sun 8/23

9:30 am-4:35 pm

1 stop21h 05m

$1,175

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 10/4

8:00 am-8:45 am

2 stops33h 45m

Sydney Kingsford Smith

Wed 11/4

9:55 am-9:07 pm

2 stops27h 12m

$1,176

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/31

3:55 pm-6:55 am

1 stop25h 00m

Sydney Kingsford Smith

Mon 9/14

12:00 pm-10:59 pm

1 stop24h 59m

$1,182

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/31

6:52 pm-6:55 am

1 stop22h 03m

Sydney Kingsford Smith

Mon 9/14

9:30 am-4:35 pm

1 stop21h 05m

$1,186

BaltimoreBrisbane

BWI - BNE

BWIBNE

Baltimore/Washington

Sun 11/1

3:23 pm-6:30 am

1 stop24h 07m

Brisbane

Sat 11/21

9:40 am-6:17 pm

1 stop23h 37m

$1,186

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 8/9

1:55 pm-7:30 am

2 stops27h 35m

Sydney Kingsford Smith

Sun 8/23

9:25 pm-9:49 am

2 stops26h 24m

$1,187

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Sat 8/15

11:59 am-6:45 am

2 stops28h 46m

Melbourne

Sat 8/22

9:45 am-9:59 pm

2 stops26h 14m

$1,193

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 7/26

6:38 am-6:55 am

1 stop34h 17m

Sydney Kingsford Smith

Sun 8/23

9:30 am-4:35 pm

1 stop21h 05m

$1,197

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 $1,652 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 $1,041 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

21h 16m

Direct flights

None
The fastest flight from Washington, D.C. to Australia takes 21h 16m
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 $282Free CancellationRating
7.8
8,452 reviews
Search Delta flights
United AirlinesPriceFrom $357Free CancellationRating
7.4
9,926 reviews
Search United Airlines flights
Air CanadaPriceFrom $787Free CancellationRating
7.1
11,287 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $787Free CancellationRating
7.5
1,056 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $836Free CancellationRating
7.1
11,766 reviews
Search American Airlines flights
Air New ZealandPriceFrom $1,285Free CancellationRating
8.0
649 reviews
Search Air New Zealand flights
Qatar AirwaysPriceFrom $2,062Free CancellationRating
7.3
3,737 reviews
Search Qatar Airways 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
Sat 8/1
Sat 8/8

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