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 27h 18m.

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

United Airlines, Delta, and Alaska 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 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.

$736 Cheap Flights from Washington, D.C. to Australia in 2026

Discover deals from 900+ travel sites with momondo.

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.

19:23 - 07:30

BWI

MEL

22h 07m

1 stop

09:30 - 16:35

MEL

BWI

21h 05m

1 stop

$1,530Air New Zealand

Wed, 29 Jul - Fri, 14 Aug

10:32 - 07:30

BWI

MEL

30h 58m

2 stops

09:30 - 16:35

MEL

BWI

21h 05m

1 stop

$1,537Air New Zealand

Wed, 29 Jul - Fri, 14 Aug

13:50 - 06:45

BWI

MEL

26h 55m

2 stops

09:45 - 21:38

MEL

BWI

25h 53m

2 stops

$1,538American Airlines

Sat, 1 Aug - Sat, 8 Aug

15:03 - 07:30

BWI

MEL

26h 27m

1 stop

09:30 - 17:43

MEL

BWI

22h 13m

1 stop

$1,541Air New Zealand

Wed, 29 Jul - Wed, 5 Aug

15:03 - 07:30

BWI

MEL

26h 27m

2 stops

09:30 - 17:43

MEL

BWI

22h 13m

1 stop

$1,545United Airlines

Wed, 29 Jul - Wed, 5 Aug

15:03 - 07:30

BWI

MEL

26h 27m

2 stops

09:30 - 16:35

MEL

BWI

21h 05m

1 stop

$1,547United Airlines

Mon, 10 Aug - Wed, 19 Aug

09:50 - 12:00

IAD

MEL

36h 10m

3 stops

13:30 - 12:47

MEL

IAD

37h 17m

3 stops

$1,670Multiple Airlines

Wed, 29 Jul - Sat, 8 Aug

11:35 - 06:50

BWI

SYD

29h 15m

2 stops

09:15 - 21:23

SYD

BWI

26h 08m

2 stops

$1,691Delta

Sun, 26 Jul - Sun, 23 Aug

09:50 - 22:10

IAD

SYD

46h 20m

3 stops

13:15 - 08:20

SYD

IAD

33h 05m

3 stops

$1,705Multiple Airlines

Mon, 27 Jul - Fri, 31 Jul

14:18 - 06:50

BWI

SYD

26h 32m

2 stops

09:15 - 21:23

SYD

BWI

26h 08m

2 stops

$1,761Delta

Tue, 4 Aug - Thu, 13 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

28 Oct

BWI19:10Baltimore/Washington

44h 45m

1 stop

SYD06:55Sydney Kingsford Smith

8 Nov

SYD06:00Sydney Kingsford Smith

28h 17m

2 stops

BWI18:17Baltimore/Washington

$1,952

Qantas Airways

3 July

BWI15:48Baltimore/Washington

25h 07m

1 stop

SYD06:55Sydney Kingsford Smith

14 July

SYD12:00Sydney Kingsford Smith

21h 24m

1 stop

BWI19:24Baltimore/Washington

$1,963

Qantas Airways

26 Oct

BWI15:48Baltimore/Washington

24h 07m

1 stop

SYD06:55Sydney Kingsford Smith

9 Nov

SYD21:50Sydney Kingsford Smith

36h 27m

2 stops

BWI18:17Baltimore/Washington

$1,968

Delta flights from Washington, D.C. to Australia

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

Delta

16 Sept

BWI12:01Baltimore/Washington

29h 49m

2 stops

MEL07:50Melbourne

27 Sept

MEL10:00Melbourne

27h 18m

2 stops

BWI23:18Baltimore/Washington

$1,562

Delta

19 Nov

BWI14:10Baltimore/Washington

27h 40m

2 stops

MEL09:50Melbourne

5 Dec

MEL12:00Melbourne

28h 26m

2 stops

BWI00:26Baltimore/Washington

$1,564

Delta

10 Oct

BWI18:59Baltimore/Washington

46h 51m

2 stops

MEL08:50Melbourne

31 Oct

MEL11:00Melbourne

34h 00m

2 stops

BWI06:00Baltimore/Washington

$1,581

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 29/7

19:23-07:30

1 stop22h 07m

Melbourne

Fri 14/8

09:30-16:35

1 stop21h 05m

$1,530

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 29/7

10:32-07:30

2 stops30h 58m

Melbourne

Fri 14/8

09:30-16:35

1 stop21h 05m

$1,537

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Sat 1/8

13:50-06:45

2 stops26h 55m

Melbourne

Sat 8/8

09:45-21:38

2 stops25h 53m

$1,538

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 29/7

15:03-07:30

1 stop26h 27m

Melbourne

Wed 5/8

09:30-17:43

1 stop22h 13m

$1,541

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 29/7

15:03-07:30

2 stops26h 27m

Melbourne

Wed 5/8

09:30-17:43

1 stop22h 13m

$1,545

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 10/8

15:03-07:30

2 stops26h 27m

Melbourne

Wed 19/8

09:30-16:35

1 stop21h 05m

$1,547

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Wed 29/7

09:50-12:00

3 stops36h 10m

Melbourne

Sat 8/8

13:30-12:47

3 stops37h 17m

$1,670

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 26/7

11:35-06:50

2 stops29h 15m

Sydney Kingsford Smith

Sun 23/8

09:15-21:23

2 stops26h 08m

$1,691

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 27/7

09:50-22:10

3 stops46h 20m

Sydney Kingsford Smith

Fri 31/7

13:15-08:20

3 stops33h 05m

$1,705

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 4/8

14:18-06:50

2 stops26h 32m

Sydney Kingsford Smith

Thu 13/8

09:15-21:23

2 stops26h 08m

$1,761

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 $111. 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 $116.

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 $2,347 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 $1,005 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 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 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 $1,642	Free cancellation	Rating 7.4 9,859 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.