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

United Airlines, Delta, 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 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 28h 31m.

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.

$700 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.

09:50 - 11:50

IAD

SYD

36h 00m

3 stops

13:15 - 10:16

SYD

IAD

35h 01m

3 stops

$1,422Multiple Airlines

Tue, 4 Aug - Tue, 11 Aug

08:00 - 08:15

BWI

MEL

34h 15m

1 stop

10:55 - 07:15

MEL

BWI

34h 20m

1 stop

$1,539United Airlines

Thu, 13 Aug - Fri, 28 Aug

11:59 - 06:45

BWI

MEL

28h 46m

2 stops

09:45 - 23:41

MEL

BWI

27h 56m

2 stops

$1,548American Airlines

Fri, 7 Aug - Fri, 14 Aug

13:00 - 07:30

BWI

MEL

28h 30m

2 stops

09:30 - 16:35

MEL

BWI

21h 05m

1 stop

$1,619Air New Zealand

Mon, 17 Aug - Sun, 30 Aug

07:00 - 07:30

BWI

MEL

34h 30m

1 stop

09:30 - 16:35

MEL

BWI

21h 05m

1 stop

$1,626Air New Zealand

Mon, 17 Aug - Sun, 30 Aug

12:30 - 06:50

BWI

SYD

28h 20m

2 stops

09:15 - 23:18

SYD

BWI

28h 03m

2 stops

$1,702Delta

Sun, 9 Aug - Sun, 23 Aug

14:18 - 06:50

BWI

SYD

26h 32m

2 stops

09:15 - 23:18

SYD

BWI

28h 03m

2 stops

$1,703Delta

Sun, 9 Aug - Sun, 23 Aug

15:23 - 06:30

BWI

BNE

24h 07m

1 stop

09:40 - 18:17

BNE

BWI

23h 37m

1 stop

$1,779Qantas Airways

Wed, 18 Nov - Thu, 26 Nov

19:07 - 06:30

BWI

BNE

44h 23m

1 stop

09:40 - 18:14

BNE

BWI

23h 34m

1 stop

$1,803Qantas Airways

Sat, 21 Nov - Thu, 3 Dec

11:52 - 05:50

BWI

BNE

26h 58m

2 stops

09:40 - 22:54

BNE

BWI

28h 14m

1 stop

$1,840American Airlines

Wed, 11 Nov - Mon, 23 Nov

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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

26 June

BWI18:59Baltimore/Washington

22h 31m

1 stop

MEL07:30Melbourne

4 July

MEL10:55Melbourne

21h 04m

1 stop

BWI17:59Baltimore/Washington

$1,628

Air New Zealand

1 July

BWI19:23Baltimore/Washington

21h 37m

1 stop

SYD07:00Sydney Kingsford Smith

8 July

SYD10:20Sydney Kingsford Smith

21h 37m

1 stop

BWI17:57Baltimore/Washington

$1,748

Air New Zealand

26 July

BWI18:59Baltimore/Washington

21h 56m

1 stop

SYD06:55Sydney Kingsford Smith

23 Aug

SYD10:20Sydney Kingsford Smith

21h 23m

1 stop

BWI17:43Baltimore/Washington

$1,749

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

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

Turkish Airlines

1 Nov

IAD14:30Washington, D.C. Dulles Intl

37h 05m

2 stops

SYD19:35Sydney Kingsford Smith

20 Nov

SYD21:30Sydney Kingsford Smith

37h 55m

2 stops

IAD19:25Washington, D.C. Dulles Intl

$2,103

Turkish Airlines

4 Nov

IAD22:20Washington, D.C. Dulles Intl

30h 20m

2 stops

MEL20:40Melbourne

16 Nov

MEL22:35Melbourne

53h 10m

2 stops

IAD11:45Washington, D.C. Dulles Intl

$2,176

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 4/8

09:50-11:50

3 stops36h 00m

Sydney Kingsford Smith

Tue 11/8

13:15-10:16

3 stops35h 01m

$1,422

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Thu 13/8

08:00-08:15

1 stop34h 15m

Melbourne

Fri 28/8

10:55-07:15

1 stop34h 20m

$1,539

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Fri 7/8

11:59-06:45

2 stops28h 46m

Melbourne

Fri 14/8

09:45-23:41

2 stops27h 56m

$1,548

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 17/8

13:00-07:30

2 stops28h 30m

Melbourne

Sun 30/8

09:30-16:35

1 stop21h 05m

$1,619

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 17/8

07:00-07:30

1 stop34h 30m

Melbourne

Sun 30/8

09:30-16:35

1 stop21h 05m

$1,626

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 9/8

12:30-06:50

2 stops28h 20m

Sydney Kingsford Smith

Sun 23/8

09:15-23:18

2 stops28h 03m

$1,702

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 9/8

14:18-06:50

2 stops26h 32m

Sydney Kingsford Smith

Sun 23/8

09:15-23:18

2 stops28h 03m

$1,703

Fastest return journey

BaltimoreBrisbane

BWI - BNE

BWIBNE

Baltimore/Washington

Wed 18/11

15:23-06:30

1 stop24h 07m

Brisbane

Thu 26/11

09:40-18:17

1 stop23h 37m

$1,779

BaltimoreBrisbane

BWI - BNE

BWIBNE

Baltimore/Washington

Sat 21/11

19:07-06:30

1 stop44h 23m

Brisbane

Thu 3/12

09:40-18:14

1 stop23h 34m

$1,803

BaltimoreBrisbane

BWI - BNE

BWIBNE

Baltimore/Washington

Wed 11/11

11:52-05:50

2 stops26h 58m

Brisbane

Mon 23/11

09:40-22:54

1 stop28h 14m

$1,840

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 $117.

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 $2,356 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 $1,012 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 35m
Direct flights	None

The fastest flight from Washington, D.C. to Australia takes 21h 35m

There are no direct flights from Washington, D.C. to Australia. There are no popular flight routes from Washington, D.C. to Australia.

Search flight deals

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 $1,654	Free cancellation	Rating 7.4 9,875 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.