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

Delta, United Airlines, and Alaska 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 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 25h 35m.

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.

$715 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.

11:10 - 11:50

IAD

SYD

34h 40m

3 stops

06:15 - 16:07

SYD

IAD

47h 52m

3 stops

$1,460Multiple Airlines

Fri, 14 Aug - Fri, 21 Aug

11:11 - 11:50

IAD

SYD

34h 39m

3 stops

13:15 - 17:14

SYD

IAD

41h 59m

3 stops

$1,471Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

11:59 - 05:00

BWI

MEL

27h 01m

1 stop

13:35 - 21:29

MEL

BWI

21h 54m

1 stop

$1,642Qantas Airways

Sat, 19 Sep - Sat, 26 Sep

15:55 - 06:55

BWI

SYD

25h 00m

1 stop

09:10 - 20:49

SYD

BWI

25h 39m

2 stops

$1,702American Airlines

Mon, 10 Aug - Mon, 17 Aug

15:55 - 06:55

BWI

SYD

25h 00m

1 stop

12:00 - 23:41

SYD

BWI

25h 41m

1 stop

$1,703American Airlines

Mon, 10 Aug - Mon, 17 Aug

08:00 - 08:45

BWI

SYD

34h 45m

2 stops

10:55 - 21:14

SYD

BWI

24h 19m

2 stops

$1,705Air New Zealand

Tue, 15 Sep - Wed, 30 Sep

19:23 - 07:00

BWI

SYD

21h 37m

1 stop

09:30 - 16:35

SYD

BWI

21h 05m

1 stop

$1,719United Airlines

Sun, 9 Aug - Sun, 23 Aug

15:03 - 07:00

BWI

SYD

25h 57m

2 stops

10:20 - 17:43

SYD

BWI

21h 23m

1 stop

$1,721United Airlines

Mon, 10 Aug - Mon, 17 Aug

14:47 - 08:45

IAD

SYD

27h 58m

2 stops

09:55 - 23:55

SYD

IAD

28h 00m

2 stops

$1,935Air New Zealand

Mon, 24 Aug - Mon, 31 Aug

19:20 - 11:15

BWI

PER

51h 55m

2 stops

12:25 - 23:41

PER

BWI

47h 16m

2 stops

$2,415Qantas Airways

Sun, 9 Aug - Sun, 16 Aug

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

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

American Airlines

4 July

BWI12:00Baltimore/Washington

27h 00m

1 stop

MEL05:00Melbourne

18 July

MEL13:35Melbourne

35h 33m

1 stop

BWI11:08Baltimore/Washington

$1,698

American Airlines

10 Aug

BWI15:55Baltimore/Washington

25h 00m

1 stop

SYD06:55Sydney Kingsford Smith

17 Aug

SYD09:10Sydney Kingsford Smith

25h 39m

2 stops

BWI20:49Baltimore/Washington

$1,702

American Airlines

10 Aug

BWI15:55Baltimore/Washington

25h 00m

1 stop

SYD06:55Sydney Kingsford Smith

17 Aug

SYD12:00Sydney Kingsford Smith

25h 41m

1 stop

BWI23:41Baltimore/Washington

$1,703

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

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

United Airlines

5 July

BWI19:23Baltimore/Washington

21h 37m

1 stop

SYD07:00Sydney Kingsford Smith

19 July

SYD10:20Sydney Kingsford Smith

39h 27m

2 stops

BWI11:47Baltimore/Washington

$1,711

United Airlines

4 July

BWI06:30Baltimore/Washington

35h 45m

1 stop

MEL08:15Melbourne

18 July

MEL10:55Melbourne

27h 33m

2 stops

BWI00:28Baltimore/Washington

$1,714

United Airlines

30 June

BWI18:59Baltimore/Washington

21h 56m

1 stop

SYD06:55Sydney Kingsford Smith

7 July

SYD09:30Sydney Kingsford Smith

22h 50m

1 stop

BWI18:20Baltimore/Washington

$1,719

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Fri 14/8

11:10-11:50

3 stops34h 40m

Sydney Kingsford Smith

Fri 21/8

06:15-16:07

3 stops47h 52m

$1,460

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 12/8

11:11-11:50

3 stops34h 39m

Sydney Kingsford Smith

Wed 19/8

13:15-17:14

3 stops41h 59m

$1,471

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Sat 19/9

11:59-05:00

1 stop27h 01m

Melbourne

Sat 26/9

13:35-21:29

1 stop21h 54m

$1,642

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 10/8

15:55-06:55

1 stop25h 00m

Sydney Kingsford Smith

Mon 17/8

09:10-20:49

2 stops25h 39m

$1,702

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 10/8

15:55-06:55

1 stop25h 00m

Sydney Kingsford Smith

Mon 17/8

12:00-23:41

1 stop25h 41m

$1,703

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 15/9

08:00-08:45

2 stops34h 45m

Sydney Kingsford Smith

Wed 30/9

10:55-21:14

2 stops24h 19m

$1,705

Fastest return journey

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 9/8

19:23-07:00

1 stop21h 37m

Sydney Kingsford Smith

Sun 23/8

09:30-16:35

1 stop21h 05m

$1,719

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 10/8

15:03-07:00

2 stops25h 57m

Sydney Kingsford Smith

Mon 17/8

10:20-17:43

1 stop21h 23m

$1,721

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 24/8

14:47-08:45

2 stops27h 58m

Sydney Kingsford Smith

Mon 31/8

09:55-23:55

2 stops28h 00m

$1,935

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Sun 9/8

19:20-11:15

2 stops51h 55m

Perth

Sun 16/8

12:25-23:41

2 stops47h 16m

$2,415

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 $113. 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 $119.

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 $2,395 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 $1,509 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 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 $1,679	Free cancellation	Rating 7.4 9,894 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.