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

The flight from Washington, D.C. to Australia depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Baltimore (a popular airport in Washington, D.C.) to Sydney (the most popular airport in Australia), then the flight time is 21h 47m on average. If you fly from Washington, D.C. (another popular airport in Washington, D.C.) to Sydney, then the average flight time is 22h 57m.

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

American Airlines, United Airlines, and Delta are the most popular carriers operating 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 are refreshed on a daily basis.

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

There is 1 operator available for flights from Washington, D.C. to Australia as of November 2025.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Australia.

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

The travel and health documents you'll need for your trip to Australia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$746 Cheap Flights from Washington, D.C. to Australia in 2025/26

1 adult

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One-way

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Enter your travel dates to find the best prices.

13:13 - 09:35IAD-SYD

28h 22m2 stops

09:20 - 11:16SYD-IAD

39h 56m2 stops

$1,520Air Canada

Find Deal

Tue, 17 Feb - Tue, 26 May

11:05 - 09:35DCA-SYD

30h 30m2 stops

11:20 - 10:23SYD-DCA

39h 03m2 stops

$1,520Air Canada

Find Deal

Sun, 1 Feb - Sun, 15 Feb

16:10 - 09:35BWI-SYD

25h 25m2 stops

11:20 - 22:25SYD-BWI

27h 05m2 stops

$1,551Multiple Airlines

Find Deal

Sun, 1 Feb - Sun, 8 Feb

09:40 - 12:10DCA-BNE

35h 30m3 stops

10:45 - 09:23BNE-DCA

37h 38m2 stops

$1,643Multiple Airlines

Find Deal

Thu, 26 Feb - Sun, 8 Mar

15:41 - 10:55BWI-SYD

27h 14m2 stops

14:05 - 22:57SYD-BWI

24h 52m1 stop

$1,673Qantas Airways

Find Deal

Fri, 6 Feb - Sat, 21 Feb

15:21 - 06:55BWI-SYD

23h 34m1 stop

06:05 - 14:28SYD-BWI

24h 23m2 stops

$1,685Qantas Airways

Find Deal

Fri, 20 Feb - Sun, 1 Mar

11:13 - 05:00BWI-MEL

25h 47m2 stops

16:05 - 23:10MEL-BWI

23h 05m1 stop

$1,793American Airlines

Find Deal

Mon, 19 Jan - Mon, 26 Jan

06:07 - 05:00BWI-MEL

30h 53m1 stop

16:05 - 22:57MEL-BWI

22h 52m1 stop

$1,805American Airlines

Find Deal

Wed, 11 Feb - Wed, 18 Feb

18:18 - 07:30BWI-MEL

23h 12m1 stop

09:30 - 17:07MEL-BWI

21h 37m1 stop

$1,840United Airlines

Find Deal

Wed, 8 Apr - Sun, 26 Apr

08:42 - 10:00BWI-MEL

33h 18m1 stop

09:30 - 21:33MEL-BWI

26h 03m2 stops

$1,841United Airlines

Find Deal

Tue, 3 Mar - Sun, 19 Apr

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

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

Air Canada

17 Feb

IAD13:13Washington, D.C. Dulles Intl

28h 22m

2 stops

SYD09:35Sydney Kingsford Smith

26 May

SYD09:20Sydney Kingsford Smith

39h 56m

2 stops

IAD11:16Washington, D.C. Dulles Intl

$1,520

Find similar

Air Canada

25 Feb

IAD09:45Washington, D.C. Dulles Intl

31h 50m

3 stops

SYD09:35Sydney Kingsford Smith

11 Mar

SYD10:20Sydney Kingsford Smith

25h 34m

2 stops

IAD20:54Washington, D.C. Dulles Intl

$1,529

Find similar

Air Canada

25 Feb

IAD13:13Washington, D.C. Dulles Intl

28h 22m

2 stops

SYD09:35Sydney Kingsford Smith

11 Mar

SYD10:20Sydney Kingsford Smith

25h 06m

1 stop

IAD20:26Washington, D.C. Dulles Intl

$1,531

Find similar

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

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

Qantas Airways

6 Feb

BWI15:41Baltimore/Washington

27h 14m

2 stops

SYD10:55Sydney Kingsford Smith

21 Feb

SYD14:05Sydney Kingsford Smith

24h 52m

1 stop

BWI22:57Baltimore/Washington

$1,673

Find similar

Qantas Airways

20 Feb

BWI15:21Baltimore/Washington

23h 34m

1 stop

SYD06:55Sydney Kingsford Smith

1 Mar

SYD06:05Sydney Kingsford Smith

24h 23m

2 stops

BWI14:28Baltimore/Washington

$1,685

Find similar

Qantas Airways

2 Mar

BWI15:22Baltimore/Washington

23h 33m

1 stop

SYD06:55Sydney Kingsford Smith

15 Mar

SYD06:05Sydney Kingsford Smith

27h 08m

2 stops

BWI18:13Baltimore/Washington

$1,687

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

Tue 17/2

13:13-09:35

2 stops28h 22m

Sydney Kingsford Smith

Tue 26/5

09:20-11:16

2 stops39h 56m

$1,520

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 1/2

11:05-09:35

2 stops30h 30m

Sydney Kingsford Smith

Sun 15/2

11:20-10:23

2 stops39h 03m

$1,520

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 1/2

16:10-09:35

2 stops25h 25m

Sydney Kingsford Smith

Sun 8/2

11:20-22:25

2 stops27h 05m

$1,551

Washington, D.C.Brisbane

DCA - BNE

DCABNE

Washington, D.C. Reagan-National

Thu 26/2

09:40-12:10

3 stops35h 30m

Brisbane

Sun 8/3

10:45-09:23

2 stops37h 38m

$1,643

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Fri 6/2

15:41-10:55

2 stops27h 14m

Sydney Kingsford Smith

Sat 21/2

14:05-22:57

1 stop24h 52m

$1,673

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Fri 20/2

15:21-06:55

1 stop23h 34m

Sydney Kingsford Smith

Sun 1/3

06:05-14:28

2 stops24h 23m

$1,685

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 19/1

11:13-05:00

2 stops25h 47m

Melbourne

Mon 26/1

16:05-23:10

1 stop23h 05m

$1,793

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 11/2

06:07-05:00

1 stop30h 53m

Melbourne

Wed 18/2

16:05-22:57

1 stop22h 52m

$1,805

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 8/4

18:18-07:30

1 stop23h 12m

Melbourne

Sun 26/4

09:30-17:07

1 stop21h 37m

$1,840

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Tue 3/3

08:42-10:00

1 stop33h 18m

Melbourne

Sun 19/4

09:30-21:33

2 stops26h 03m

$1,841

Flights are sorted by cheapest return 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?

In general, August is the cheapest month to fly from Washington, D.C. to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,318. If you don’t want to visit Australia in August, then you should wait until April to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $1,354.

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

On average, the least expensive day to fly to Australia from Washington, D.C. is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,910. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Washington, D.C. to Australia on a Thursday will generally be more expensive and average around $2,442. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Australia is in the morning. momondo users have found flights departing from Washington, D.C. to Australia in the morning for as low as $2,083. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Australia are more costly in the evening, with an average ticket price of $3,074. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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 $1,920 when searching weeks before you fly. 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 $953 on momondo.

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

You could potentially save up to 37% 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 38m
Direct flights	None

The fastest flight from Washington, D.C. to Australia takes 21h 38m

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 are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. to Australia?
There is 1 operator available for flights from Washington, D.C. to Australia as of November 2025.
How old do you have to be to fly from Washington, D.C. to Australia?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Australia.
What documentation or ID do you need to fly to Australia?
The travel and health documents you'll need for your trip to Australia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek 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
United Airlines	PriceFrom $2,217	Free cancellation	Rating 7.4 9,058 reviews		Search United Airlines flights

Why use momondo?

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

Finding the right flight to Australia from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Australia quick and easy, saving you time and money.

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

Yes. All flights to Australia from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Washington, D.C. and Australia by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Washington, D.C. to Australia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Australia and let you know when they change.

An easier way to manage your Australia trip

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Find better results for your trip to Australia

Popular Cities in Australia

Look for other cheap flights to Sydney

Look for other cheap flights to Melbourne

Look for other cheap flights to Brisbanefrom $81

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Look for other cheap flights to Canberrafrom $206

Look for other cheap flights to Darwinfrom $350

Look for other cheap flights to Maroochydorefrom $121

Look for other cheap flights to Launcestonfrom $99

Cheap flights from Washington, D.C. to Australia from $746

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 10/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

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Filter for what you want

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

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

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

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

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Australia that are best for you.

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?

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

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

How far in advance should I book a flight to Australia?

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

You could potentially save up to 37% on your flight if you consider stops on a Washington, D.C. to Australia flight.

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

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

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

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

Direct flights

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

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?

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

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

Why use momondo?

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

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

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

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

An easier way to manage your Australia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Popular Cities in Australia

Popular flights according to clicks in the last 7 days on momondo