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

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

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 22h 49m on average. If you fly from Washington, D.C. (another popular airport in Washington, D.C.) to Sydney, then the average flight time is 23h 25m.

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 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.

$782 Cheap Flights from Washington, D.C. to Australia in 2026

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

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

07:50 - 11:50IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

38h 00m3 stops Atlanta Hartsfield-Jackson Los Angeles Los Angeles Nadi

13:15 - 09:32SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

34h 17m3 stops Nadi Los Angeles Los Angeles Orlando

$1,459Multiple Airlines

Mon, 14 Sep - Sun, 20 Sep

07:50 - 11:50IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

38h 00m3 stops Atlanta Hartsfield-Jackson Los Angeles Los Angeles Nadi

13:15 - 09:32SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

34h 17m3 stops Nadi Los Angeles Los Angeles Orlando

$1,467Multiple Airlines

Mon, 14 Sep - Sun, 20 Sep

11:12 - 11:50IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

34h 38m3 stops Orlando Los Angeles Los Angeles Nadi

13:15 - 10:27SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

35h 12m3 stops Nadi Los Angeles Los Angeles Orlando

$1,473Multiple Airlines

Wed, 16 Sep - Wed, 23 Sep

11:12 - 10:35IAD Washington, D.C. Dulles Intl-BNE Brisbane

33h 23m3 stops Orlando Los Angeles Los Angeles Nadi

11:35 - 10:17BNE Brisbane-IAD Washington, D.C. Dulles Intl

36h 42m3 stops Nadi Los Angeles Los Angeles Orlando

$1,474Multiple Airlines

Wed, 23 Sep - Sun, 27 Sep

07:50 - 22:25IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

48h 35m3 stops Atlanta Hartsfield-Jackson Los Angeles Los Angeles Nadi

13:15 - 10:27SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

35h 12m3 stops Nadi Los Angeles Los Angeles Orlando

$1,480Multiple Airlines

Sun, 13 Sep - Wed, 23 Sep

07:50 - 11:50IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

38h 00m3 stops Atlanta Hartsfield-Jackson Los Angeles Los Angeles Nadi

13:15 - 10:17SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

35h 02m3 stops Nadi Los Angeles Los Angeles Orlando

$1,483Multiple Airlines

Sun, 13 Sep - Mon, 21 Sep

07:50 - 12:25IAD Washington, D.C. Dulles Intl-MEL Melbourne

38h 35m3 stops Atlanta Hartsfield-Jackson Los Angeles Los Angeles Nadi

13:25 - 10:27MEL Melbourne-IAD Washington, D.C. Dulles Intl

35h 02m3 stops Nadi Los Angeles Los Angeles Orlando

$1,500Multiple Airlines

Sun, 13 Sep - Wed, 30 Sep

11:12 - 12:05IAD Washington, D.C. Dulles Intl-MEL Melbourne

34h 53m3 stops Orlando Los Angeles Los Angeles Nadi

13:25 - 10:27MEL Melbourne-IAD Washington, D.C. Dulles Intl

35h 02m3 stops Nadi Los Angeles Los Angeles Orlando

$1,503Multiple Airlines

Tue, 22 Sep - Wed, 30 Sep

07:50 - 22:20IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

48h 30m3 stops Atlanta Hartsfield-Jackson Los Angeles Los Angeles Nadi

13:15 - 06:20SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

55h 05m3 stops Nadi Los Angeles Los Angeles Las Vegas Harry Reid Intl

$1,510Multiple Airlines

Mon, 14 Sep - Mon, 28 Sep

15:57 - 05:00BWI Baltimore/Washington-MEL Melbourne

23h 03m1 stop Dallas/Fort Worth

14:35 - 23:59MEL Melbourne-BWI Baltimore/Washington

24h 24m2 stops Dallas/Fort Worth Charlotte Douglas

$1,597American Airlines

Mon, 28 Sep - Mon, 5 Oct

Cheap last-minute flights

Enter your travel dates to find the best prices.

18:52 - 08:15BWI Baltimore/Washington-MEL Melbourne

23h 23m1 stop San Francisco

09:30 - 16:35MEL Melbourne-BWI Baltimore/Washington

21h 05m1 stop Los Angeles Los Angeles

$1,782United Airlines

Fri, 21 Aug - Sun, 30 Aug

18:52 - 08:15BWI Baltimore/Washington-MEL Melbourne

23h 23m1 stop San Francisco

10:55 - 22:56MEL Melbourne-BWI Baltimore/Washington

26h 01m2 stops San Francisco Denver Intl

$1,789United Airlines

Thu, 20 Aug - Thu, 27 Aug

17:44 - 07:00BWI Baltimore/Washington-SYD Sydney Kingsford Smith

23h 16m1 stop Los Angeles Los Angeles

10:20 - 17:40SYD Sydney Kingsford Smith-BWI Baltimore/Washington

21h 20m1 stop San Francisco

$1,817United Airlines

Fri, 21 Aug - Wed, 2 Sep

17:44 - 07:00BWI Baltimore/Washington-SYD Sydney Kingsford Smith

23h 16m1 stop Los Angeles Los Angeles

09:30 - 18:42SYD Sydney Kingsford Smith-BWI Baltimore/Washington

23h 12m2 stops Los Angeles Los Angeles Chicago O'Hare Intl

$1,824United Airlines

Fri, 21 Aug - Wed, 2 Sep

17:44 - 07:00BWI Baltimore/Washington-SYD Sydney Kingsford Smith

23h 16m1 stop Los Angeles Los Angeles

10:20 - 17:40SYD Sydney Kingsford Smith-BWI Baltimore/Washington

21h 20m1 stop San Francisco

$1,888United Airlines

Fri, 21 Aug - Fri, 28 Aug

12:03 - 06:50BWI Baltimore/Washington-SYD Sydney Kingsford Smith

28h 47m2 stops Atlanta Hartsfield-Jackson Los Angeles Los Angeles

09:15 - 21:23SYD Sydney Kingsford Smith-BWI Baltimore/Washington

26h 08m2 stops Los Angeles Los Angeles Atlanta Hartsfield-Jackson

$1,895Delta

Fri, 21 Aug - Fri, 28 Aug

07:00 - 07:00BWI Baltimore/Washington-SYD Sydney Kingsford Smith

34h 00m1 stop Los Angeles Los Angeles

09:30 - 16:35SYD Sydney Kingsford Smith-BWI Baltimore/Washington

21h 05m1 stop Los Angeles Los Angeles

$1,905United Airlines

Sat, 22 Aug - Thu, 3 Sep

07:00 - 07:00BWI Baltimore/Washington-SYD Sydney Kingsford Smith

34h 00m1 stop Los Angeles Los Angeles

09:30 - 16:35SYD Sydney Kingsford Smith-BWI Baltimore/Washington

21h 05m1 stop Los Angeles Los Angeles

$1,906United Airlines

Sat, 22 Aug - Thu, 3 Sep

08:31 - 08:45IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

34h 14m2 stops Houston George Bush Intcntl Auckland Intl

09:55 - 00:30SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

28h 35m2 stops Auckland Intl Houston George Bush Intcntl

$1,910Air New Zealand

Sat, 22 Aug - Thu, 3 Sep

08:20 - 08:45DCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

34h 25m2 stops Houston George Bush Intcntl Auckland Intl

09:55 - 23:59SYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

28h 04m2 stops Auckland Intl Houston George Bush Intcntl

$1,910Air New Zealand

Sat, 22 Aug - Thu, 3 Sep

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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

23 Aug

BWI09:00Baltimore/Washington

32h 00m

1 stop

SYD07:00Sydney Kingsford Smith

6 Sept

SYD09:30Sydney Kingsford Smith

21h 05m

1 stop

BWI16:35Baltimore/Washington

$1,741

United Airlines

31 Aug

BWI18:52Baltimore/Washington

22h 03m

1 stop

SYD06:55Sydney Kingsford Smith

14 Sept

SYD09:30Sydney Kingsford Smith

35h 45m

2 stops

BWI07:15Baltimore/Washington

$1,747

United Airlines

31 Aug

BWI08:30Baltimore/Washington

32h 25m

2 stops

SYD06:55Sydney Kingsford Smith

14 Sept

SYD09:30Sydney Kingsford Smith

35h 45m

2 stops

BWI07:15Baltimore/Washington

$1,754

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

26 Jan

IAD08:30Washington, D.C. Dulles Intl

32h 05m

2 stops

SYD08:35Sydney Kingsford Smith

17 Feb

SYD14:05Sydney Kingsford Smith

26h 45m

2 stops

IAD00:50Washington, D.C. Dulles Intl

$1,761

Air New Zealand

4 Nov

IAD12:45Washington, D.C. Dulles Intl

27h 50m

2 stops

SYD08:35Sydney Kingsford Smith

17 Nov

SYD09:55Sydney Kingsford Smith

35h 24m

2 stops

IAD05:19Washington, D.C. Dulles Intl

$1,762

Air New Zealand

23 Aug

IAD08:20Washington, D.C. Dulles Intl

34h 25m

2 stops

SYD08:45Sydney Kingsford Smith

14 Oct

SYD11:55Sydney Kingsford Smith

27h 46m

2 stops

IAD00:41Washington, D.C. Dulles Intl

$1,775

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 return flight

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Mon 14/9

07:50-11:50

3 stops38h 00m

Sydney Kingsford Smith

Sun 20/9

13:15-09:32

3 stops34h 17m

$1,459

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Mon 14/9

07:50-11:50

3 stops38h 00m

Sydney Kingsford Smith

Sun 20/9

13:15-09:32

3 stops34h 17m

$1,467

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Wed 16/9

11:12-11:50

3 stops34h 38m

Sydney Kingsford Smith

Wed 23/9

13:15-10:27

3 stops35h 12m

$1,473

Washington, D.C.Brisbane

IAD Washington, D.C. Dulles Intl - BNE Brisbane

IADBNE

Washington, D.C. Dulles Intl

Wed 23/9

11:12-10:35

3 stops33h 23m

Brisbane

Sun 27/9

11:35-10:17

3 stops36h 42m

$1,474

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Sun 13/9

07:50-22:25

3 stops48h 35m

Sydney Kingsford Smith

Wed 23/9

13:15-10:27

3 stops35h 12m

$1,480

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Sun 13/9

07:50-11:50

3 stops38h 00m

Sydney Kingsford Smith

Mon 21/9

13:15-10:17

3 stops35h 02m

$1,483

Washington, D.C.Melbourne

IAD Washington, D.C. Dulles Intl - MEL Melbourne

IADMEL

Washington, D.C. Dulles Intl

Sun 13/9

07:50-12:25

3 stops38h 35m

Melbourne

Wed 30/9

13:25-10:27

3 stops35h 02m

$1,500

Washington, D.C.Melbourne

IAD Washington, D.C. Dulles Intl - MEL Melbourne

IADMEL

Washington, D.C. Dulles Intl

Tue 22/9

11:12-12:05

3 stops34h 53m

Melbourne

Wed 30/9

13:25-10:27

3 stops35h 02m

$1,503

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Mon 14/9

07:50-22:20

3 stops48h 30m

Sydney Kingsford Smith

Mon 28/9

13:15-06:20

3 stops55h 05m

$1,510

Fastest return journey

BaltimoreMelbourne

BWI Baltimore/Washington - MEL Melbourne

BWIMEL

Baltimore/Washington

Mon 28/9

15:57-05:00

1 stop23h 03m

Melbourne

Mon 5/10

14:35-23:59

2 stops24h 24m

$1,597

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, February 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 $1,968. If you don’t want to visit Australia in February, then you should wait until May to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $1,971.

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 $2,304 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 $1,761 on momondo.

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

You could potentially save up to 9% 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

Best price found	$782
Fastest flight time	21h 56m
Direct flights	None

The best one-way flight to Australia from Washington, D.C. in the past 72 hours is $782. The best return flight deal from Washington, D.C. to Australia found on momondo in the last 72 hours is $1,459.

The fastest flight from Washington, D.C. to Australia takes 21h 56m

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 are refreshed on a daily basis.
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.

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.