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 56m on average. If you fly from Washington, D.C. (another popular airport in Washington, D.C.) to Sydney, then the average flight time is 24h 39m.

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

American Airlines, United Airlines, and Qantas Airways 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.

$817 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 - 12:25IAD Washington, D.C. Dulles Intl-MEL Melbourne

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

13:25 - 06:20MEL Melbourne-IAD Washington, D.C. Dulles Intl

30h 55m3 stops Nadi Los Angeles Los Angeles Las Vegas Harry Reid Intl

$1,528Multiple Airlines

Sun, 13 Sep - Wed, 30 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 - 10:17SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

35h 02m3 stops Nadi Los Angeles Los Angeles Orlando

$1,650Multiple Airlines

Sun, 20 Sep - Sun, 27 Sep

07:00 - 12:35DCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

38h 35m3 stops Denver Intl Los Angeles Los Angeles Nadi

14:00 - 12:49SYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

38h 49m3 stops Nadi Los Angeles Los Angeles Denver Intl

$1,667Multiple Airlines

Wed, 28 Oct - Fri, 6 Nov

10:27 - 11:50IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

35h 23m3 stops Orlando 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

$1,697Multiple Airlines

Fri, 18 Sep - Fri, 25 Sep

21:00 - 23:05IAD Washington, D.C. Dulles Intl-MEL Melbourne

35h 05m1 stop Doha Hamad Intl

23:40 - 15:55MEL Melbourne-IAD Washington, D.C. Dulles Intl

32h 15m1 stop Doha Hamad Intl

$1,708Qatar Airways

Tue, 20 Oct - Tue, 10 Nov

20:05 - 23:20IAD Washington, D.C. Dulles Intl-MEL Melbourne

35h 15m1 stop Doha Hamad Intl

23:40 - 08:10MEL Melbourne-IAD Washington, D.C. Dulles Intl

48h 30m1 stop Doha Hamad Intl

$1,712Qatar Airways

Mon, 9 Nov - Wed, 25 Nov

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

34h 38m3 stops Orlando Los Angeles Los Angeles Nadi

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

35h 02m3 stops Nadi Los Angeles Los Angeles Orlando

$1,716Multiple Airlines

Wed, 9 Sep - Wed, 16 Sep

11:12 - 07:05IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

29h 53m2 stops Orlando Los Angeles Los Angeles

09:10 - 00:10SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

29h 00m2 stops Los Angeles Los Angeles Atlanta Hartsfield-Jackson

$1,723Multiple Airlines

Tue, 22 Sep - Tue, 29 Sep

11:05 - 16:50IAD Washington, D.C. Dulles Intl-MEL Melbourne

39h 45m1 stop Doha Hamad Intl

16:10 - 15:40MEL Melbourne-IAD Washington, D.C. Dulles Intl

37h 30m1 stop Doha Hamad Intl

$1,731Qatar Airways

Thu, 10 Sep - Thu, 24 Sep

06:20 - 07:30IAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

35h 10m2 stops Atlanta Hartsfield-Jackson Los Angeles Los Angeles

09:10 - 00:10SYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

29h 00m2 stops Los Angeles Los Angeles Atlanta Hartsfield-Jackson

$1,731Multiple Airlines

Wed, 2 Sep - Wed, 9 Sep

Cheap last-minute flights

Enter your travel dates to find the best prices.

19:23 - 07:00BWI Baltimore/Washington-SYD Sydney Kingsford Smith

21h 37m1 stop Los Angeles Los Angeles

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

21h 05m1 stop Los Angeles Los Angeles

$1,755United Airlines

Mon, 10 Aug - Wed, 26 Aug

15:03 - 07:00BWI Baltimore/Washington-SYD Sydney Kingsford Smith

25h 57m2 stops Houston George Bush Intcntl Los Angeles Los Angeles

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

21h 20m1 stop San Francisco

$1,756United Airlines

Mon, 10 Aug - Wed, 19 Aug

15:55 - 07:05BWI Baltimore/Washington-SYD Sydney Kingsford Smith

25h 10m2 stops Dallas/Fort Worth Los Angeles Los Angeles

12:00 - 21:52SYD Sydney Kingsford Smith-BWI Baltimore/Washington

23h 52m2 stops Dallas/Fort Worth Charlotte Douglas

$1,758American Airlines

Mon, 10 Aug - Wed, 19 Aug

15:03 - 07:00BWI Baltimore/Washington-SYD Sydney Kingsford Smith

25h 57m2 stops Houston George Bush Intcntl Los Angeles Los Angeles

10:20 - 10:09SYD Sydney Kingsford Smith-BWI Baltimore/Washington

37h 49m2 stops San Francisco Chicago O'Hare Intl

$1,760United Airlines

Mon, 10 Aug - Wed, 26 Aug

13:15 - 06:55BWI Baltimore/Washington-SYD Sydney Kingsford Smith

27h 40m2 stops Houston George Bush Intcntl San Francisco

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

21h 05m1 stop Los Angeles Los Angeles

$1,762United Airlines

Tue, 11 Aug - Tue, 18 Aug

09:59 - 06:50BWI Baltimore/Washington-SYD Sydney Kingsford Smith

30h 51m2 stops Detroit Metropolitan Wayne County Los Angeles Los Angeles

09:15 - 19:50SYD Sydney Kingsford Smith-BWI Baltimore/Washington

24h 35m2 stops Los Angeles Los Angeles Atlanta Hartsfield-Jackson

$1,763Delta

Mon, 10 Aug - Wed, 19 Aug

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

34h 00m1 stop Los Angeles Los Angeles

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

21h 20m1 stop San Francisco

$1,772United Airlines

Tue, 11 Aug - Tue, 18 Aug

09:59 - 07:50BWI Baltimore/Washington-MEL Melbourne

31h 51m2 stops Detroit Metropolitan Wayne County Los Angeles Los Angeles

10:00 - 19:50MEL Melbourne-BWI Baltimore/Washington

23h 50m2 stops Los Angeles Los Angeles Atlanta Hartsfield-Jackson

$1,779Delta

Mon, 10 Aug - Wed, 26 Aug

18:59 - 08:15BWI Baltimore/Washington-MEL Melbourne

23h 16m1 stop San Francisco

09:30 - 19:34MEL Melbourne-BWI Baltimore/Washington

24h 04m2 stops Los Angeles Los Angeles Denver Intl

$1,786United Airlines

Mon, 10 Aug - Wed, 26 Aug

18:59 - 08:15BWI Baltimore/Washington-MEL Melbourne

23h 16m1 stop San Francisco

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

21h 05m1 stop Los Angeles Los Angeles

$1,790United Airlines

Sun, 9 Aug - Wed, 19 Aug

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

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

Qantas Airways

21 Oct

BWI16:04Baltimore/Washington

23h 51m

1 stop

SYD06:55Sydney Kingsford Smith

18 Nov

SYD14:05Sydney Kingsford Smith

21h 11m

1 stop

BWI19:16Baltimore/Washington

$1,807

Qantas Airways

17 Oct

BWI16:04Baltimore/Washington

30h 36m

2 stops

BNE12:40Brisbane

12 Nov

BNE09:40Brisbane

24h 36m

1 stop

BWI19:16Baltimore/Washington

$1,817

Qantas Airways

17 Oct

BWI16:04Baltimore/Washington

30h 36m

2 stops

BNE12:40Brisbane

12 Nov

BNE09:40Brisbane

24h 36m

1 stop

BWI19:16Baltimore/Washington

$1,819

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

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

United Airlines

18 Aug

BWI08:00Baltimore/Washington

32h 55m

1 stop

SYD06:55Sydney Kingsford Smith

20 Sept

SYD09:30Sydney Kingsford Smith

35h 16m

1 stop

BWI06:46Baltimore/Washington

$1,741

United Airlines

9 Aug

BWI15:03Baltimore/Washington

25h 57m

2 stops

SYD07:00Sydney Kingsford Smith

23 Aug

SYD09:30Sydney Kingsford Smith

35h 16m

1 stop

BWI06:46Baltimore/Washington

$1,745

United Airlines

10 Aug

BWI15:03Baltimore/Washington

25h 57m

2 stops

SYD07:00Sydney Kingsford Smith

24 Aug

SYD10:20Sydney Kingsford Smith

21h 20m

1 stop

BWI17:40Baltimore/Washington

$1,755

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

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

13:25-06:20

3 stops30h 55m

$1,528

Washington, D.C.Sydney

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

IADSYD

Washington, D.C. Dulles Intl

Sun 20/9

11:12-11:50

3 stops34h 38m

Sydney Kingsford Smith

Sun 27/9

13:15-10:17

3 stops35h 02m

$1,650

Washington, D.C.Sydney

DCA Washington, D.C. Reagan-National - SYD Sydney Kingsford Smith

DCASYD

Washington, D.C. Reagan-National

Wed 28/10

07:00-12:35

3 stops38h 35m

Sydney Kingsford Smith

Fri 6/11

14:00-12:49

3 stops38h 49m

$1,667

Washington, D.C.Sydney

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

IADSYD

Washington, D.C. Dulles Intl

Fri 18/9

10:27-11:50

3 stops35h 23m

Sydney Kingsford Smith

Fri 25/9

13:15-10:17

3 stops35h 02m

$1,697

Washington, D.C.Melbourne

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

IADMEL

Washington, D.C. Dulles Intl

Tue 20/10

21:00-23:05

1 stop35h 05m

Melbourne

Tue 10/11

23:40-15:55

1 stop32h 15m

$1,708

Washington, D.C.Melbourne

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

IADMEL

Washington, D.C. Dulles Intl

Mon 9/11

20:05-23:20

1 stop35h 15m

Melbourne

Wed 25/11

23:40-08:10

1 stop48h 30m

$1,712

Washington, D.C.Sydney

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

IADSYD

Washington, D.C. Dulles Intl

Wed 9/9

11:12-11:50

3 stops34h 38m

Sydney Kingsford Smith

Wed 16/9

13:15-10:17

3 stops35h 02m

$1,716

Fastest return journey

Washington, D.C.Sydney

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

IADSYD

Washington, D.C. Dulles Intl

Tue 22/9

11:12-07:05

2 stops29h 53m

Sydney Kingsford Smith

Tue 29/9

09:10-00:10

2 stops29h 00m

$1,723

Washington, D.C.Melbourne

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

IADMEL

Washington, D.C. Dulles Intl

Thu 10/9

11:05-16:50

1 stop39h 45m

Melbourne

Thu 24/9

16:10-15:40

1 stop37h 30m

$1,731

Washington, D.C.Sydney

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

IADSYD

Washington, D.C. Dulles Intl

Wed 2/9

06:20-07:30

2 stops35h 10m

Sydney Kingsford Smith

Wed 9/9

09:10-00:10

2 stops29h 00m

$1,731

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 $1,958. 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 $1,973.

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 $2,322 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 $1,586 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 16m
Direct flights	None

The fastest flight from Washington, D.C. to Australia takes 21h 16m

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.