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 37m on average. If you fly from Washington, D.C. (another popular airport in Washington, D.C.) to Sydney, then the average flight time is 26h 39m.

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

Delta, American Airlines, and United Airlines 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 May 2026.

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.

$747 Cheap Flights from Washington, D.C. to Australia in 2026

1 adult

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

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

16:50 - 06:50

DCA

SYD

24h 00m

1 stop

09:15 - 15:35

SYD

DCA

20h 20m

1 stop

$1,394Delta

Mon, 1 Jun - Sun, 7 Jun

16:50 - 06:50

DCA

SYD

24h 00m

1 stop

09:15 - 15:35

SYD

DCA

20h 20m

1 stop

$1,396Delta

Mon, 1 Jun - Sun, 7 Jun

11:57 - 06:45

BWI

MEL

28h 48m

2 stops

09:45 - 19:26

MEL

BWI

24h 41m

2 stops

$1,485American Airlines

Tue, 22 Sep - Sun, 11 Oct

15:53 - 05:00

BWI

MEL

23h 07m

1 stop

13:35 - 21:27

MEL

BWI

21h 52m

1 stop

$1,494American Airlines

Wed, 2 Sep - Wed, 16 Sep

18:59 - 08:15

BWI

MEL

23h 16m

1 stop

09:30 - 17:50

MEL

BWI

22h 20m

1 stop

$1,507Air New Zealand

Fri, 5 Jun - Fri, 10 Jul

18:59 - 08:15

BWI

MEL

23h 16m

1 stop

09:30 - 18:09

MEL

BWI

22h 39m

1 stop

$1,509Air New Zealand

Sun, 24 May - Fri, 5 Jun

15:00 - 07:30

BWI

MEL

26h 30m

2 stops

10:55 - 17:57

MEL

BWI

21h 02m

1 stop

$1,510United Airlines

Mon, 1 Jun - Mon, 15 Jun

15:00 - 08:15

BWI

MEL

27h 15m

2 stops

10:55 - 22:45

MEL

BWI

25h 50m

2 stops

$1,514Multiple Airlines

Sun, 24 May - Fri, 5 Jun

19:23 - 07:00

BWI

SYD

21h 37m

1 stop

09:30 - 16:31

SYD

BWI

21h 01m

1 stop

$1,601United Airlines

Wed, 22 Jul - Wed, 19 Aug

18:58 - 19:20

DCA

MEL

34h 22m

2 stops

07:30 - 22:59

MEL

DCA

29h 29m

2 stops

$1,955Multiple Airlines

Sat, 20 Jun - Sat, 27 Jun

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

5 June

BWI18:59Baltimore/Washington

23h 16m

1 stop

MEL08:15Melbourne

10 July

MEL09:30Melbourne

22h 20m

1 stop

BWI17:50Baltimore/Washington

$1,507

Air New Zealand

24 May

BWI18:59Baltimore/Washington

23h 16m

1 stop

MEL08:15Melbourne

5 June

MEL09:30Melbourne

22h 39m

1 stop

BWI18:09Baltimore/Washington

$1,509

Air New Zealand

5 June

BWI08:25Baltimore/Washington

33h 05m

2 stops

MEL07:30Melbourne

10 July

MEL10:55Melbourne

27h 33m

2 stops

BWI00:28Baltimore/Washington

$1,513

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

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

Turkish Airlines

4 Nov

IAD14:30Washington, D.C. Dulles Intl

37h 20m

2 stops

SYD19:50Sydney Kingsford Smith

10 Dec

SYD21:45Sydney Kingsford Smith

37h 30m

2 stops

IAD19:15Washington, D.C. Dulles Intl

$1,989

Turkish Airlines

4 Nov

IAD14:30Washington, D.C. Dulles Intl

37h 20m

2 stops

SYD19:50Sydney Kingsford Smith

19 Nov

SYD21:45Sydney Kingsford Smith

54h 00m

2 stops

IAD11:45Washington, D.C. Dulles Intl

$1,993

Turkish Airlines

11 Aug

IAD13:20Washington, D.C. Dulles Intl

39h 50m

2 stops

SYD19:10Sydney Kingsford Smith

1 Sept

SYD21:05Sydney Kingsford Smith

52h 30m

2 stops

IAD11:35Washington, D.C. Dulles Intl

$2,015

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Mon 1/6

16:50-06:50

1 stop24h 00m

Sydney Kingsford Smith

Sun 7/6

09:15-15:35

1 stop20h 20m

$1,394

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Mon 1/6

16:50-06:50

1 stop24h 00m

Sydney Kingsford Smith

Sun 7/6

09:15-15:35

1 stop20h 20m

$1,396

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Tue 22/9

11:57-06:45

2 stops28h 48m

Melbourne

Sun 11/10

09:45-19:26

2 stops24h 41m

$1,485

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 2/9

15:53-05:00

1 stop23h 07m

Melbourne

Wed 16/9

13:35-21:27

1 stop21h 52m

$1,494

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Fri 5/6

18:59-08:15

1 stop23h 16m

Melbourne

Fri 10/7

09:30-17:50

1 stop22h 20m

$1,507

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Sun 24/5

18:59-08:15

1 stop23h 16m

Melbourne

Fri 5/6

09:30-18:09

1 stop22h 39m

$1,509

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 1/6

15:00-07:30

2 stops26h 30m

Melbourne

Mon 15/6

10:55-17:57

1 stop21h 02m

$1,510

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Sun 24/5

15:00-08:15

2 stops27h 15m

Melbourne

Fri 5/6

10:55-22:45

2 stops25h 50m

$1,514

Fastest return journey

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 22/7

19:23-07:00

1 stop21h 37m

Sydney Kingsford Smith

Wed 19/8

09:30-16:31

1 stop21h 01m

$1,601

Washington, D.C.Melbourne

DCA - MEL

DCAMEL

Washington, D.C. Reagan-National

Sat 20/6

18:58-19:20

2 stops34h 22m

Melbourne

Sat 27/6

07:30-22:59

2 stops29h 29m

$1,955

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 $108. If you don’t want to visit Australia in August, then you should wait until September to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $113.

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 $2,239 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 $1,046 on momondo.

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

You could potentially save up to 12% 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 31m
Direct flights	None

The fastest flight from Washington, D.C. to Australia takes 21h 31m

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 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 May 2026.
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 $1,790	Free cancellation	Rating 7.4 9,701 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.