How long is the flight from Washington, D.C. to Australia?

Flight times from Washington, D.C. to Australia vary, but if you’re flying out of Baltimore and flying into Sydney (one of the most popular routes), then the duration is 21h 55m on average. Another popular route from Washington, D.C. to Australia is flying from Washington, D.C. to Sydney, which will take roughly 23h 58m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Australia?

American Airlines, United Airlines and Qantas Airways are the top three most popular airlines that fly to Australia from Washington, D.C. according to our data. American Airlines is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 8 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

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?

The number of operators available for flights from Washington, D.C. to Australia is 7 as of September 2025.

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.

$484 Cheap Flights from Washington, D.C. to Australia in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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

Round-trip

One-way

Last minute

Cheap round-trip flights

7:15 am - 7:00 amIAD-SYD

32h 45m2 stops

11:50 am - 11:55 pmSYD-IAD

27h 05m2 stops

$956

Find Deal

Sat, Oct 25 - Sat, Nov 1

6:15 am - 8:05 amIAD-SYD

34h 50m2 stops

1:05 pm - 11:29 pmSYD-IAD

25h 24m2 stops

$989

Find Deal

Mon, Oct 20 - Fri, Oct 31

3:17 pm - 10:55 amBWI-SYD

27h 38m2 stops

2:05 pm - 11:02 pmSYD-BWI

24h 57m1 stop

$1,106Qantas Airways

Find Deal

Sun, Nov 9 - Wed, Nov 19

3:17 pm - 11:35 amBWI-SYD

28h 18m2 stops

2:05 pm - 6:17 pmSYD-BWI

20h 12m1 stop

$1,107Qantas Airways

Find Deal

Sun, Nov 9 - Sun, Nov 16

1:05 pm - 5:00 amBWI-MEL

24h 55m2 stops

4:05 pm - 11:54 pmMEL-BWI

22h 49m1 stop

$1,253American Airlines

Find Deal

Sun, Oct 26 - Sun, Nov 2

9:30 am - 5:00 amBWI-MEL

28h 30m2 stops

12:00 pm - 11:59 pmMEL-BWI

26h 59m2 stops

$1,265American Airlines

Find Deal

Fri, Oct 24 - Fri, Oct 31

8:42 am - 9:30 amBWI-MEL

32h 48m2 stops

11:30 am - 4:47 pmMEL-BWI

21h 17m1 stop

$1,390United Airlines

Find Deal

Sat, Jan 31 - Wed, Feb 18

9:00 am - 1:35 pmIAD-MEL

36h 35m3 stops

8:00 am - 8:29 pmMEL-IAD

28h 29m3 stops

$1,401Air Canada

Find Deal

Mon, Feb 16 - Mon, Mar 2

8:40 pm - 1:35 pmDCA-MEL

48h 55m3 stops

8:00 am - 10:35 pmMEL-DCA

30h 35m3 stops

$1,435Air Canada

Find Deal

Sun, Feb 1 - Wed, Feb 18

12:00 pm - 8:30 amDCA-MEL

29h 30m2 stops

1:00 pm - 9:43 pmMEL-DCA

24h 43m1 stop

$1,554United Airlines

Find Deal

Wed, Oct 29 - Tue, Nov 18

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

Our best Qantas Airways deals on Washington, D.C. to Australia flight tickets

Qantas Airways

Nov 9

BWI3:17 pmBaltimore/Washington

27h 38m

2 stops

SYD10:55 amSydney Kingsford Smith

Nov 19

SYD2:05 pmSydney Kingsford Smith

24h 57m

1 stop

BWI11:02 pmBaltimore/Washington

$1,106

Find similar

Qantas Airways

Nov 9

BWI3:17 pmBaltimore/Washington

28h 18m

2 stops

SYD11:35 amSydney Kingsford Smith

Nov 16

SYD2:05 pmSydney Kingsford Smith

20h 12m

1 stop

BWI6:17 pmBaltimore/Washington

$1,107

Find similar

Qantas Airways

Nov 11

BWI3:23 pmBaltimore/Washington

23h 32m

1 stop

SYD6:55 amSydney Kingsford Smith

Nov 23

SYD7:05 amSydney Kingsford Smith

23h 10m

2 stops

BWI2:15 pmBaltimore/Washington

$1,115

Find similar

Delta flights from Washington, D.C. to Australia

Our best Delta deals on Washington, D.C. to Australia flight tickets

Delta

Feb 2

BWI12:15 pmBaltimore/Washington

27h 45m

2 stops

MEL8:00 amMelbourne

Feb 18

MEL10:10 amMelbourne

28h 49m

2 stops

BWI10:59 pmBaltimore/Washington

$1,297

Find similar

Delta

Feb 1

BWI6:25 pmBaltimore/Washington

45h 35m

2 stops

MEL8:00 amMelbourne

Feb 22

MEL10:10 amMelbourne

28h 49m

2 stops

BWI10:59 pmBaltimore/Washington

$1,315

Find similar

Delta

Sep 20

BWI1:50 pmBaltimore/Washington

26h 45m

2 stops

SYD6:35 amSydney Kingsford Smith

Oct 4

SYD9:25 amSydney Kingsford Smith

28h 12m

2 stops

BWI11:37 pmBaltimore/Washington

$1,457

Find similar

momondo Fare Finder

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

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sat 10/25

7:15 am-7:00 am

2 stops32h 45m

Sydney Kingsford Smith

Sat 11/1

11:50 am-11:55 pm

2 stops27h 05m

$956

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 10/20

6:15 am-8:05 am

2 stops34h 50m

Sydney Kingsford Smith

Fri 10/31

1:05 pm-11:29 pm

2 stops25h 24m

$989

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 11/9

3:17 pm-10:55 am

2 stops27h 38m

Sydney Kingsford Smith

Wed 11/19

2:05 pm-11:02 pm

1 stop24h 57m

$1,106

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 11/9

3:17 pm-11:35 am

2 stops28h 18m

Sydney Kingsford Smith

Sun 11/16

2:05 pm-6:17 pm

1 stop20h 12m

$1,107

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Sun 10/26

1:05 pm-5:00 am

2 stops24h 55m

Melbourne

Sun 11/2

4:05 pm-11:54 pm

1 stop22h 49m

$1,253

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Fri 10/24

9:30 am-5:00 am

2 stops28h 30m

Melbourne

Fri 10/31

12:00 pm-11:59 pm

2 stops26h 59m

$1,265

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Sat 1/31

8:42 am-9:30 am

2 stops32h 48m

Melbourne

Wed 2/18

11:30 am-4:47 pm

1 stop21h 17m

$1,390

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Mon 2/16

9:00 am-1:35 pm

3 stops36h 35m

Melbourne

Mon 3/2

8:00 am-8:29 pm

3 stops28h 29m

$1,401

Washington, D.C.Melbourne

DCA - MEL

DCAMEL

Washington, D.C. Reagan-National

Sun 2/1

8:40 pm-1:35 pm

3 stops48h 55m

Melbourne

Wed 2/18

8:00 am-10:35 pm

3 stops30h 35m

$1,435

Washington, D.C.Melbourne

DCA - MEL

DCAMEL

Washington, D.C. Reagan-National

Wed 10/29

12:00 pm-8:30 am

2 stops29h 30m

Melbourne

Tue 11/18

1:00 pm-9:43 pm

1 stop24h 43m

$1,554

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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 $868. If you aren’t able to travel during the month of August, then book flights to Australia from Washington, D.C. during April instead. Flights to Australia in April, while not as cheap as those in August, still average around $908.

What is the cheapest day to depart on your flight to Australia?

The cheapest day to depart from Washington, D.C. to Australia is on a Tuesday. Travelers who choose to depart for Australia on a Tuesday will often find tickets for as low as $1,260. On the other hand, Monday is the most expensive day to depart from Washington, D.C. because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,520.

What is the cheapest time of day to depart on your flight to Australia?

Flying to Australia from Washington, D.C. in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,368 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,647 on average. Flights to Australia from Washington, D.C. in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight 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 $1,308 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 $972 on momondo.

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

You could potentially save up to 6% 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

Direct flights	None

There are no direct flights from Washington, D.C. to Australia. There are no popular flight routes from Washington, D.C. to Australia.

Search flight deals

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?
The number of operators available for flights from Washington, D.C. to Australia is 7 as of September 2025.
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
Delta	PriceFrom $276	Free Cancellation	Rating 7.9 7,960 reviews	Search Delta flights
United Airlines	PriceFrom $346	Free Cancellation	Rating 7.4 8,937 reviews	Search United Airlines flights
American Airlines	PriceFrom $672	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $678	Free Cancellation	Rating 7.5 905 reviews	Search Qantas Airways flights
Air Canada	PriceFrom $984	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,261	Free Cancellation	Rating 8.0 505 reviews	Search Air New Zealand flights
ANA	PriceFrom $1,370	Free Cancellation	Rating 8.4 961 reviews	Search ANA flights
Qatar Airways	PriceFrom $1,506	Free Cancellation	Rating 7.4 3,624 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.