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 58m on average. If you fly from Washington, D.C. (another popular airport in Washington, D.C.) to Sydney, then the average flight time is 27h 07m.

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

Delta, United Airlines, and Cathay Pacific 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 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.

$798 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 Nadi

06:15 - 10:27SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

42h 12m3 stops Nadi Los Angeles Orlando

$1,476Multiple Airlines

Sun, 13 Sep - Wed, 23 Sep

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

34h 38m3 stops Orlando Los Angeles Nadi

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

35h 12m3 stops Nadi Los Angeles Orlando

$1,478Multiple Airlines

Wed, 16 Sep - Wed, 23 Sep

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

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

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

35h 12m3 stops Nadi Los Angeles Orlando

$1,485Multiple Airlines

Sun, 13 Sep - Wed, 23 Sep

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

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

13:15 - 08:38SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

33h 23m3 stops Nadi Los Angeles Orlando

$1,485Multiple Airlines

Fri, 25 Sep - Fri, 2 Oct

10:22 - 10:35BWI Baltimore/Washington-BNE Brisbane

34h 13m3 stops Atlanta Hartsfield-Jackson Los Angeles Nadi

11:35 - 16:46BNE Brisbane-BWI Baltimore/Washington

43h 11m3 stops Nadi Los Angeles Atlanta Hartsfield-Jackson

$1,485Multiple Airlines

Wed, 23 Sep - Sun, 27 Sep

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

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

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

35h 02m3 stops Nadi Los Angeles Orlando

$1,488Multiple Airlines

Sun, 13 Sep - Mon, 21 Sep

11:12 - 22:25IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

45h 13m3 stops Orlando Los Angeles Nadi

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

31h 05m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$1,492Multiple Airlines

Wed, 23 Sep - Wed, 30 Sep

09:27 - 11:50BWI Baltimore/Washington-SYD Sydney Kingsford Smith

36h 23m3 stops Orlando Los Angeles Nadi

13:15 - 14:11SYD Sydney Kingsford Smith-BWI Baltimore/Washington

38h 56m3 stops Nadi Los Angeles Orlando

$1,495Multiple Airlines

Fri, 25 Sep - Fri, 2 Oct

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

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

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

35h 02m3 stops Nadi Los Angeles Orlando

$1,505Multiple Airlines

Sun, 13 Sep - Wed, 30 Sep

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

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

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

35h 02m3 stops Nadi Los Angeles Orlando

$1,509Multiple Airlines

Sun, 13 Sep - Wed, 30 Sep

Cheap last-minute flights

Enter your travel dates to find the best prices.

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

23h 16m1 stop Los Angeles

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

21h 05m1 stop Los Angeles

$1,740United Airlines

Sun, 16 Aug - Sun, 30 Aug

15:04 - 06:55BWI Baltimore/Washington-SYD Sydney Kingsford Smith

25h 51m2 stops Houston George Bush Intcntl San Francisco

10:20 - 11:45SYD Sydney Kingsford Smith-BWI Baltimore/Washington

39h 25m2 stops San Francisco Houston George Bush Intcntl

$1,741United Airlines

Sun, 16 Aug - Sun, 30 Aug

18:52 - 06:55BWI Baltimore/Washington-SYD Sydney Kingsford Smith

22h 03m1 stop San Francisco

10:20 - 11:45SYD Sydney Kingsford Smith-BWI Baltimore/Washington

39h 25m2 stops San Francisco Houston George Bush Intcntl

$1,744United Airlines

Mon, 17 Aug - Sun, 30 Aug

15:04 - 07:00BWI Baltimore/Washington-SYD Sydney Kingsford Smith

25h 56m2 stops Houston George Bush Intcntl Los Angeles

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

21h 05m1 stop Los Angeles

$1,752United Airlines

Sun, 16 Aug - Sun, 30 Aug

18:52 - 06:55BWI Baltimore/Washington-SYD Sydney Kingsford Smith

22h 03m1 stop San Francisco

10:20 - 23:00SYD Sydney Kingsford Smith-BWI Baltimore/Washington

26h 40m2 stops San Francisco Chicago O'Hare Intl

$1,758United Airlines

Mon, 17 Aug - Mon, 24 Aug

15:04 - 06:55BWI Baltimore/Washington-SYD Sydney Kingsford Smith

25h 51m2 stops Houston George Bush Intcntl San Francisco

10:20 - 11:45SYD Sydney Kingsford Smith-BWI Baltimore/Washington

39h 25m2 stops San Francisco Houston George Bush Intcntl

$1,759United Airlines

Sun, 16 Aug - Sun, 30 Aug

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

$1,788United Airlines

Sun, 16 Aug - Sun, 23 Aug

10:25 - 08:15BWI Baltimore/Washington-MEL Melbourne

31h 50m2 stops Chicago O'Hare Intl San Francisco

09:30 - 19:50MEL Melbourne-BWI Baltimore/Washington

24h 20m1 stop Los Angeles

$1,795United Airlines

Sat, 15 Aug - Wed, 9 Sep

08:00 - 08:15BWI Baltimore/Washington-MEL Melbourne

34h 15m1 stop San Francisco

09:30 - 19:50MEL Melbourne-BWI Baltimore/Washington

24h 20m1 stop Los Angeles

$1,805United Airlines

Sat, 15 Aug - Wed, 9 Sep

18:52 - 06:55BWI Baltimore/Washington-SYD Sydney Kingsford Smith

22h 03m1 stop San Francisco

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

21h 20m1 stop San Francisco

$1,894United Airlines

Fri, 14 Aug - Fri, 4 Sep

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Cathay Pacific flights from Washington, D.C. to Australia

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

Cathay Pacific

19 Aug

DCA11:35Washington, D.C. Reagan-National

34h 10m

2 stops

SYD11:45Sydney Kingsford Smith

9 Sept

SYD07:40Sydney Kingsford Smith

30h 19m

2 stops

DCA23:59Washington, D.C. Reagan-National

$2,243

Cathay Pacific

1 Sept

BWI11:54Baltimore/Washington

44h 36m

2 stops

BNE22:30Brisbane

27 Sept

BNE00:05Brisbane

35h 51m

2 stops

BWI21:56Baltimore/Washington

$2,307

Cathay Pacific

16 Aug

DCA11:35Washington, D.C. Reagan-National

34h 10m

2 stops

SYD11:45Sydney Kingsford Smith

30 Aug

SYD21:55Sydney Kingsford Smith

40h 03m

2 stops

DCA23:58Washington, D.C. Reagan-National

$2,376

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

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

Air Canada

8 Nov

IAD09:55Washington, D.C. Dulles Intl

31h 50m

2 stops

BNE08:45Brisbane

29 Nov

BNE10:45Brisbane

24h 38m

2 stops

IAD20:23Washington, D.C. Dulles Intl

$1,926

Air Canada

1 Sept

IAD16:20Washington, D.C. Dulles Intl

24h 45m

2 stops

BNE07:05Brisbane

28 Sept

BNE10:00Brisbane

24h 25m

2 stops

IAD20:25Washington, D.C. Dulles Intl

$1,931

Air Canada

19 Oct

DCA11:00Washington, D.C. Reagan-National

30h 20m

2 stops

SYD08:20Sydney Kingsford Smith

2 Nov

SYD11:20Sydney Kingsford Smith

22h 58m

2 stops

DCA18:18Washington, D.C. Reagan-National

$1,933

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

Sun 13/9

07:50-11:50

3 stops38h 00m

Sydney Kingsford Smith

Wed 23/9

06:15-10:27

3 stops42h 12m

$1,476

Fastest return journey

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

$1,478

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

$1,485

Washington, D.C.Sydney

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

IADSYD

Washington, D.C. Dulles Intl

Fri 25/9

07:50-22:25

3 stops48h 35m

Sydney Kingsford Smith

Fri 2/10

13:15-08:38

3 stops33h 23m

$1,485

BaltimoreBrisbane

BWI Baltimore/Washington - BNE Brisbane

BWIBNE

Baltimore/Washington

Wed 23/9

10:22-10:35

3 stops34h 13m

Brisbane

Sun 27/9

11:35-16:46

3 stops43h 11m

$1,485

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

$1,488

Washington, D.C.Sydney

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

IADSYD

Washington, D.C. Dulles Intl

Wed 23/9

11:12-22:25

3 stops45h 13m

Sydney Kingsford Smith

Wed 30/9

13:15-06:20

3 stops31h 05m

$1,492

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Fri 25/9

09:27-11:50

3 stops36h 23m

Sydney Kingsford Smith

Fri 2/10

13:15-14:11

3 stops38h 56m

$1,495

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

$1,505

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

$1,509

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, May 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 $1,953. If you don’t want to visit Australia in May, then you should wait until April to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $1,969.

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 $2,330 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 $1,792 on momondo.

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

You could potentially save up to 2% 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 40m
Direct flights	None

The fastest flight from Washington, D.C. to Australia takes 21h 40m

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

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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.