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

Qantas Airways, American Airlines, and United Airlines 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 44m 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 42m.

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 July 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.

$795 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 - 16:07

SYD

IAD

40h 52m

3 stops

$1,639Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

07:48 - 11:50

IAD

SYD

38h 02m

3 stops

13:15 - 17:14

SYD

IAD

41h 59m

3 stops

$1,654Multiple Airlines

Mon, 17 Aug - Wed, 26 Aug

15:55 - 06:55

BWI

SYD

25h 00m

1 stop

12:00 - 21:34

SYD

BWI

23h 34m

1 stop

$1,654Qantas Airways

Wed, 19 Aug - Wed, 26 Aug

15:55 - 06:55

BWI

SYD

25h 00m

1 stop

12:00 - 21:34

SYD

BWI

23h 34m

1 stop

$1,655Qantas Airways

Wed, 19 Aug - Wed, 26 Aug

09:50 - 11:50

IAD

SYD

36h 00m

3 stops

13:15 - 17:14

SYD

IAD

41h 59m

3 stops

$1,655Multiple Airlines

Tue, 11 Aug - Tue, 18 Aug

15:55 - 07:05

BWI

SYD

25h 10m

2 stops

12:00 - 19:29

SYD

BWI

21h 29m

1 stop

$1,689American Airlines

Mon, 17 Aug - Sun, 30 Aug

14:18 - 06:50

BWI

SYD

26h 32m

2 stops

09:15 - 09:19

SYD

BWI

38h 04m

2 stops

$1,692Delta

Mon, 3 Aug - Wed, 19 Aug

08:00 - 06:55

BWI

SYD

32h 55m

1 stop

09:30 - 16:35

SYD

BWI

21h 05m

1 stop

$1,694United Airlines

Mon, 17 Aug - Sun, 30 Aug

15:55 - 05:00

BWI

MEL

23h 05m

1 stop

13:35 - 21:34

MEL

BWI

21h 59m

1 stop

$1,695American Airlines

Sat, 15 Aug - Sat, 29 Aug

08:00 - 06:55

BWI

SYD

32h 55m

1 stop

09:30 - 16:35

SYD

BWI

21h 05m

1 stop

$1,695United Airlines

Mon, 17 Aug - Sun, 30 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

19 Aug

BWI15:55Baltimore/Washington

25h 00m

1 stop

SYD06:55Sydney Kingsford Smith

26 Aug

SYD12:00Sydney Kingsford Smith

23h 34m

1 stop

BWI21:34Baltimore/Washington

$1,654

Qantas Airways

19 Aug

BWI15:55Baltimore/Washington

25h 00m

1 stop

SYD06:55Sydney Kingsford Smith

26 Aug

SYD12:00Sydney Kingsford Smith

23h 34m

1 stop

BWI21:34Baltimore/Washington

$1,655

Qantas Airways

24 Aug

BWI15:55Baltimore/Washington

23h 05m

1 stop

MEL05:00Melbourne

7 Sept

MEL13:35Melbourne

24h 06m

1 stop

BWI23:41Baltimore/Washington

$1,701

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

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

American Airlines

17 Aug

BWI15:55Baltimore/Washington

25h 10m

2 stops

SYD07:05Sydney Kingsford Smith

30 Aug

SYD12:00Sydney Kingsford Smith

21h 29m

1 stop

BWI19:29Baltimore/Washington

$1,689

American Airlines

15 Aug

BWI15:55Baltimore/Washington

23h 05m

1 stop

MEL05:00Melbourne

29 Aug

MEL13:35Melbourne

21h 59m

1 stop

BWI21:34Baltimore/Washington

$1,695

American Airlines

12 Aug

BWI15:55Baltimore/Washington

25h 00m

1 stop

SYD06:55Sydney Kingsford Smith

19 Aug

SYD12:00Sydney Kingsford Smith

23h 34m

1 stop

BWI21:34Baltimore/Washington

$1,701

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 12/8

09:50-11:50

3 stops36h 00m

Sydney Kingsford Smith

Wed 19/8

13:15-16:07

3 stops40h 52m

$1,639

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 17/8

07:48-11:50

3 stops38h 02m

Sydney Kingsford Smith

Wed 26/8

13:15-17:14

3 stops41h 59m

$1,654

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

$1,654

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

$1,655

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 11/8

09:50-11:50

3 stops36h 00m

Sydney Kingsford Smith

Tue 18/8

13:15-17:14

3 stops41h 59m

$1,655

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 17/8

15:55-07:05

2 stops25h 10m

Sydney Kingsford Smith

Sun 30/8

12:00-19:29

1 stop21h 29m

$1,689

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 3/8

14:18-06:50

2 stops26h 32m

Sydney Kingsford Smith

Wed 19/8

09:15-09:19

2 stops38h 04m

$1,692

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 17/8

08:00-06:55

1 stop32h 55m

Sydney Kingsford Smith

Sun 30/8

09:30-16:35

1 stop21h 05m

$1,694

Fastest return journey

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Sat 15/8

15:55-05:00

1 stop23h 05m

Melbourne

Sat 29/8

13:35-21:34

1 stop21h 59m

$1,695

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 17/8

08:00-06:55

1 stop32h 55m

Sydney Kingsford Smith

Sun 30/8

09:30-16:35

1 stop21h 05m

$1,695

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 $112. 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 $118.

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 $2,337 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 $1,608 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 July 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 $1,666	Free cancellation	Rating 7.4 9,988 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.