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

United Airlines, American Airlines, and Qantas Airways 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 21h 38m 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 12m.

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.

$819 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.

11:12 - 11:50

IAD

SYD

34h 38m

3 stops

13:15 - 10:27

SYD

IAD

35h 12m

3 stops

$1,599Multiple Airlines

Wed, 16 Sep - Wed, 23 Sep

12:43 - 07:05

IAD

BNE

28h 22m

2 stops

10:15 - 21:18

BNE

IAD

25h 03m

2 stops

$1,615Air Canada

Sun, 6 Sep - Tue, 22 Sep

16:56 - 05:00

IAD

MEL

22h 04m

1 stop

14:35 - 23:23

MEL

IAD

23h 48m

1 stop

$1,669Qantas Airways

Mon, 28 Sep - Mon, 5 Oct

13:52 - 05:00

DCA

MEL

25h 08m

1 stop

14:35 - 22:55

MEL

DCA

23h 20m

1 stop

$1,670Qantas Airways

Mon, 28 Sep - Mon, 5 Oct

15:55 - 06:55

BWI

SYD

25h 00m

1 stop

12:00 - 21:34

SYD

BWI

23h 34m

1 stop

$1,695American Airlines

Wed, 19 Aug - Wed, 26 Aug

18:59 - 06:55

BWI

SYD

21h 56m

1 stop

10:20 - 17:40

SYD

BWI

21h 20m

1 stop

$1,699United Airlines

Sun, 9 Aug - Sun, 23 Aug

16:25 - 06:55

BWI

SYD

24h 30m

2 stops

12:00 - 21:52

SYD

BWI

23h 52m

2 stops

$1,701American Airlines

Wed, 19 Aug - Wed, 26 Aug

08:30 - 06:55

BWI

SYD

32h 25m

2 stops

10:20 - 17:40

SYD

BWI

21h 20m

1 stop

$1,705United Airlines

Tue, 11 Aug - Tue, 25 Aug

21:00 - 16:50

IAD

MEL

29h 50m

1 stop

22:45 - 15:40

MEL

IAD

30h 55m

1 stop

$1,733Qatar Airways

Mon, 24 Aug - Wed, 9 Sep

21:00 - 16:50

IAD

MEL

29h 50m

1 stop

23:45 - 15:40

MEL

IAD

30h 55m

1 stop

$1,735Qatar Airways

Mon, 28 Sep - Mon, 5 Oct

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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

3 Aug

BWI16:23Baltimore/Washington

24h 32m

2 stops

SYD06:55Sydney Kingsford Smith

19 Aug

SYD09:30Sydney Kingsford Smith

25h 59m

2 stops

BWI21:29Baltimore/Washington

$1,685

United Airlines

27 July

BWI07:00Baltimore/Washington

34h 00m

1 stop

SYD07:00Sydney Kingsford Smith

11 Aug

SYD09:30Sydney Kingsford Smith

21h 05m

1 stop

BWI16:35Baltimore/Washington

$1,686

United Airlines

31 Aug

BWI18:52Baltimore/Washington

22h 03m

1 stop

SYD06:55Sydney Kingsford Smith

14 Sept

SYD09:30Sydney Kingsford Smith

21h 05m

1 stop

BWI16:35Baltimore/Washington

$1,699

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

24 Oct

BWI15:04Baltimore/Washington

26h 31m

2 stops

SYD08:35Sydney Kingsford Smith

7 Nov

SYD14:05Sydney Kingsford Smith

31h 24m

2 stops

BWI05:29Baltimore/Washington

$1,805

Air New Zealand

9 Aug

DCA17:59Washington, D.C. Reagan-National

24h 46m

2 stops

SYD08:45Sydney Kingsford Smith

9 Sept

SYD11:55Sydney Kingsford Smith

26h 04m

2 stops

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

$1,825

Air New Zealand

10 Aug

DCA16:59Washington, D.C. Reagan-National

25h 46m

2 stops

SYD08:45Sydney Kingsford Smith

24 Aug

SYD11:55Sydney Kingsford Smith

24h 18m

2 stops

DCA22:13Washington, D.C. Reagan-National

$1,831

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Sydney

IAD - SYD

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

$1,599

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Sun 6/9

12:43-07:05

2 stops28h 22m

Brisbane

Tue 22/9

10:15-21:18

2 stops25h 03m

$1,615

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Mon 28/9

16:56-05:00

1 stop22h 04m

Melbourne

Mon 5/10

14:35-23:23

1 stop23h 48m

$1,669

Washington, D.C.Melbourne

DCA - MEL

DCAMEL

Washington, D.C. Reagan-National

Mon 28/9

13:52-05:00

1 stop25h 08m

Melbourne

Mon 5/10

14:35-22:55

1 stop23h 20m

$1,670

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 19/8

15:55-06:55

1 stop25h 00m

Sydney Kingsford Smith

Wed 26/8

12:00-21:34

1 stop23h 34m

$1,695

Fastest return journey

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 9/8

18:59-06:55

1 stop21h 56m

Sydney Kingsford Smith

Sun 23/8

10:20-17:40

1 stop21h 20m

$1,699

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 19/8

16:25-06:55

2 stops24h 30m

Sydney Kingsford Smith

Wed 26/8

12:00-21:52

2 stops23h 52m

$1,701

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 11/8

08:30-06:55

2 stops32h 25m

Sydney Kingsford Smith

Tue 25/8

10:20-17:40

1 stop21h 20m

$1,705

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Mon 24/8

21:00-16:50

1 stop29h 50m

Melbourne

Wed 9/9

22:45-15:40

1 stop30h 55m

$1,733

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Mon 28/9

21:00-16:50

1 stop29h 50m

Melbourne

Mon 5/10

23:45-15:40

1 stop30h 55m

$1,735

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 $1,990. 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 $1,991.

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 $2,305 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 $1,600 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 20m
Direct flights	None

The fastest flight from Washington, D.C. to Australia takes 21h 20m

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.