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 37m on average. Another popular route from Washington, D.C. to Australia is flying from Washington, D.C. to Sydney, which will take roughly 22h 42m. Keep in mind that layovers or delays could extend your travel time.

What is the cheapest airline that flies from Washington, D.C. to Australia?

Delta, United Airlines, and Alaska Airlines are the most popular carriers operating from Washington, D.C. to Australia

What airlines fly to Australia?

United Airlines, Qantas Airways and American Airlines are the top three most popular airlines that fly to Australia from Washington, D.C. according to our data. United Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 7 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 6 as of July 2026.

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.

$553 Cheap Flights from Washington, D.C. to Australia in 2026

Discover deals from 900+ travel sites with momondo.

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:48 am - 11:50 am

IAD

SYD

38h 02m

3 stops

1:15 pm - 5:14 pm

SYD

IAD

41h 59m

3 stops

$1,150Multiple Airlines

Mon, Aug 17 - Wed, Aug 26

9:50 am - 11:50 am

IAD

SYD

36h 00m

3 stops

1:15 pm - 5:14 pm

SYD

IAD

41h 59m

3 stops

$1,151Multiple Airlines

Tue, Aug 11 - Tue, Aug 18

3:55 pm - 6:55 am

BWI

SYD

25h 00m

1 stop

12:00 pm - 7:29 pm

SYD

BWI

21h 29m

1 stop

$1,160Qantas Airways

Mon, Aug 17 - Sun, Aug 30

3:55 pm - 7:05 am

BWI

SYD

25h 10m

2 stops

12:00 pm - 7:29 pm

SYD

BWI

21h 29m

1 stop

$1,170American Airlines

Mon, Aug 17 - Sun, Aug 30

3:55 pm - 7:05 am

BWI

SYD

25h 10m

2 stops

12:00 pm - 7:29 pm

SYD

BWI

21h 29m

1 stop

$1,175American Airlines

Mon, Aug 17 - Sun, Aug 30

3:04 pm - 8:45 am

BWI

SYD

27h 41m

2 stops

7:50 am - 6:46 am

SYD

BWI

36h 56m

2 stops

$1,177Air New Zealand

Mon, Aug 31 - Sun, Sep 13

8:00 am - 6:55 am

BWI

SYD

32h 55m

1 stop

9:30 am - 4:35 pm

SYD

BWI

21h 05m

1 stop

$1,179United Airlines

Mon, Aug 17 - Sun, Aug 30

3:55 pm - 5:00 am

BWI

MEL

23h 05m

1 stop

1:35 pm - 11:41 pm

MEL

BWI

24h 06m

1 stop

$1,183Qantas Airways

Mon, Aug 24 - Mon, Sep 7

6:52 pm - 6:55 am

BWI

SYD

22h 03m

1 stop

9:30 am - 7:15 am

SYD

BWI

35h 45m

2 stops

$1,186United Airlines

Mon, Aug 31 - Sun, Sep 13

4:44 pm - 9:40 am

DCA

SYD

26h 56m

2 stops

11:55 am - 9:05 pm

SYD

DCA

24h 10m

2 stops

$1,433Air New Zealand

Wed, Sep 30 - Mon, Oct 12

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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

Aug 31

BWI3:04 pmBaltimore/Washington

27h 41m

2 stops

SYD8:45 amSydney Kingsford Smith

Sep 13

SYD7:50 amSydney Kingsford Smith

36h 56m

2 stops

BWI6:46 amBaltimore/Washington

$1,177

Air New Zealand

Aug 31

BWI4:18 pmBaltimore/Washington

24h 37m

2 stops

SYD6:55 amSydney Kingsford Smith

Sep 14

SYD10:20 amSydney Kingsford Smith

21h 20m

1 stop

BWI5:40 pmBaltimore/Washington

$1,240

Air New Zealand

Sep 16

BWI7:00 amBaltimore/Washington

34h 30m

1 stop

MEL7:30 amMelbourne

Sep 27

MEL9:30 amMelbourne

21h 07m

1 stop

BWI4:37 pmBaltimore/Washington

$1,271

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

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

Turkish Airlines

Sep 22

IAD9:45 pmWashington, D.C. Dulles Intl

31h 25m

2 stops

SYD7:10 pmSydney Kingsford Smith

Oct 20

SYD10:05 pmSydney Kingsford Smith

36h 45m

2 stops

IAD7:50 pmWashington, D.C. Dulles Intl

$1,456

Turkish Airlines

Aug 31

IAD9:45 pmWashington, D.C. Dulles Intl

31h 25m

2 stops

SYD7:10 pmSydney Kingsford Smith

Sep 18

SYD9:05 pmSydney Kingsford Smith

52h 30m

2 stops

IAD11:35 amWashington, D.C. Dulles Intl

$1,480

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

Cheapest round-trip

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 8/17

7:48 am-11:50 am

3 stops38h 02m

Sydney Kingsford Smith

Wed 8/26

1:15 pm-5:14 pm

3 stops41h 59m

$1,150

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 8/11

9:50 am-11:50 am

3 stops36h 00m

Sydney Kingsford Smith

Tue 8/18

1:15 pm-5:14 pm

3 stops41h 59m

$1,151

Quickest round-trip

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/17

3:55 pm-6:55 am

1 stop25h 00m

Sydney Kingsford Smith

Sun 8/30

12:00 pm-7:29 pm

1 stop21h 29m

$1,160

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/17

3:55 pm-7:05 am

2 stops25h 10m

Sydney Kingsford Smith

Sun 8/30

12:00 pm-7:29 pm

1 stop21h 29m

$1,170

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/17

3:55 pm-7:05 am

2 stops25h 10m

Sydney Kingsford Smith

Sun 8/30

12:00 pm-7:29 pm

1 stop21h 29m

$1,175

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/31

3:04 pm-8:45 am

2 stops27h 41m

Sydney Kingsford Smith

Sun 9/13

7:50 am-6:46 am

2 stops36h 56m

$1,177

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/17

8:00 am-6:55 am

1 stop32h 55m

Sydney Kingsford Smith

Sun 8/30

9:30 am-4:35 pm

1 stop21h 05m

$1,179

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 8/24

3:55 pm-5:00 am

1 stop23h 05m

Melbourne

Mon 9/7

1:35 pm-11:41 pm

1 stop24h 06m

$1,183

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/31

6:52 pm-6:55 am

1 stop22h 03m

Sydney Kingsford Smith

Sun 9/13

9:30 am-7:15 am

2 stops35h 45m

$1,186

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 9/30

4:44 pm-9:40 am

2 stops26h 56m

Sydney Kingsford Smith

Mon 10/12

11:55 am-9:05 pm

2 stops24h 10m

$1,433

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 $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 $1,625 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 $1,118 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 37m
Direct flights	None

The fastest flight from Washington, D.C. to Australia takes 21h 37m

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

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?
The number of operators available for flights from Washington, D.C. to Australia is 6 as of July 2026.
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 $282	Free Cancellation	Rating 7.8 8,459 reviews	Search Delta flights
United Airlines	PriceFrom $357	Free Cancellation	Rating 7.4 9,980 reviews	Search United Airlines flights
Air Canada	PriceFrom $787	Free Cancellation	Rating 7.1 11,332 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $787	Free Cancellation	Rating 7.5 1,061 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $836	Free Cancellation	Rating 7.1 11,812 reviews	Search American Airlines flights
Air New Zealand	PriceFrom $1,285	Free Cancellation	Rating 8.0 653 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $2,062	Free Cancellation	Rating 7.3 3,744 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.