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 23h 19m.

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

United Airlines, Qantas Airways, and Delta 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 June 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.

$810 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.

15:48 - 05:00

BWI

MEL

22h 12m

1 stop

12:00 - 23:37

MEL

BWI

26h 37m

1 stop

$1,507American Airlines

Sat, 10 Oct - Sat, 31 Oct

11:50 - 05:00

BWI

MEL

25h 10m

2 stops

12:00 - 18:14

MEL

BWI

22h 14m

1 stop

$1,514American Airlines

Thu, 19 Nov - Sat, 5 Dec

19:21 - 07:30

BWI

MEL

22h 09m

1 stop

10:55 - 17:57

MEL

BWI

21h 02m

1 stop

$1,521Air New Zealand

Wed, 24 Jun - Wed, 1 Jul

15:03 - 07:30

BWI

MEL

26h 27m

2 stops

09:30 - 16:35

MEL

BWI

21h 05m

1 stop

$1,523United Airlines

Fri, 31 Jul - Wed, 19 Aug

18:52 - 08:15

BWI

MEL

23h 23m

1 stop

10:30 - 16:35

MEL

BWI

21h 05m

1 stop

$1,524United Airlines

Thu, 27 Aug - Sun, 11 Oct

08:00 - 07:30

BWI

MEL

33h 30m

2 stops

10:30 - 16:35

MEL

BWI

21h 05m

1 stop

$1,528Air New Zealand

Fri, 28 Aug - Wed, 14 Oct

18:59 - 08:15

BWI

MEL

23h 16m

1 stop

10:55 - 07:15

MEL

BWI

34h 20m

1 stop

$1,535Multiple Airlines

Mon, 27 Jul - Mon, 17 Aug

19:17 - 06:55

BWI

SYD

21h 38m

1 stop

13:05 - 19:27

SYD

BWI

21h 22m

1 stop

$1,745Qantas Airways

Tue, 28 Jul - Tue, 27 Oct

11:17 - 11:50

IAD

SYD

34h 33m

3 stops

13:15 - 16:40

SYD

IAD

41h 25m

3 stops

$1,753Multiple Airlines

Fri, 3 Jul - Mon, 20 Jul

15:56 - 06:55

BWI

SYD

24h 59m

1 stop

12:00 - 19:29

SYD

BWI

21h 29m

1 stop

$1,807Qantas Airways

Sat, 29 Aug - Sun, 6 Sep

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

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

United Airlines

6 June

BWI07:00Baltimore/Washington

35h 15m

2 stops

MEL08:15Melbourne

22 June

MEL10:55Melbourne

34h 15m

1 stop

BWI07:10Baltimore/Washington

$1,510

United Airlines

31 July

BWI18:59Baltimore/Washington

22h 31m

1 stop

MEL07:30Melbourne

19 Aug

MEL09:30Melbourne

21h 05m

1 stop

BWI16:35Baltimore/Washington

$1,523

United Airlines

27 Aug

BWI18:52Baltimore/Washington

23h 23m

1 stop

MEL08:15Melbourne

11 Oct

MEL10:30Melbourne

21h 05m

1 stop

BWI16:35Baltimore/Washington

$1,524

Delta flights from Washington, D.C. to Australia

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

Delta

26 Aug

BWI12:30Baltimore/Washington

29h 20m

2 stops

MEL07:50Melbourne

11 Oct

MEL11:00Melbourne

27h 46m

2 stops

BWI23:46Baltimore/Washington

$1,540

Delta

18 Oct

BWI13:00Baltimore/Washington

28h 50m

2 stops

MEL08:50Melbourne

12 Nov

MEL12:00Melbourne

24h 46m

2 stops

BWI20:46Baltimore/Washington

$1,541

Delta

10 Oct

BWI18:59Baltimore/Washington

46h 51m

2 stops

MEL08:50Melbourne

31 Oct

MEL11:00Melbourne

27h 46m

2 stops

BWI23:46Baltimore/Washington

$1,556

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Sat 10/10

15:48-05:00

1 stop22h 12m

Melbourne

Sat 31/10

12:00-23:37

1 stop26h 37m

$1,507

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Thu 19/11

11:50-05:00

2 stops25h 10m

Melbourne

Sat 5/12

12:00-18:14

1 stop22h 14m

$1,514

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 24/6

19:21-07:30

1 stop22h 09m

Melbourne

Wed 1/7

10:55-17:57

1 stop21h 02m

$1,521

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Fri 31/7

15:03-07:30

2 stops26h 27m

Melbourne

Wed 19/8

09:30-16:35

1 stop21h 05m

$1,523

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Thu 27/8

18:52-08:15

1 stop23h 23m

Melbourne

Sun 11/10

10:30-16:35

1 stop21h 05m

$1,524

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Fri 28/8

08:00-07:30

2 stops33h 30m

Melbourne

Wed 14/10

10:30-16:35

1 stop21h 05m

$1,528

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 27/7

18:59-08:15

1 stop23h 16m

Melbourne

Mon 17/8

10:55-07:15

1 stop34h 20m

$1,535

Fastest return journey

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 28/7

19:17-06:55

1 stop21h 38m

Sydney Kingsford Smith

Tue 27/10

13:05-19:27

1 stop21h 22m

$1,745

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Fri 3/7

11:17-11:50

3 stops34h 33m

Sydney Kingsford Smith

Mon 20/7

13:15-16:40

3 stops41h 25m

$1,753

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sat 29/8

15:56-06:55

1 stop24h 59m

Sydney Kingsford Smith

Sun 6/9

12:00-19:29

1 stop21h 29m

$1,807

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 $109. 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 $114.

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 $2,292 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 $1,085 on momondo.

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

You could potentially save up to 1% 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 37m
Direct flights	None

The fastest flight from Washington, D.C. to Australia takes 21h 37m

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 June 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 $1,616	Free cancellation	Rating 7.4 9,778 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.