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

United Airlines, Delta, and Etihad Airways are the most popular carriers operating from Washington, D.C. to Australia

How long is the flight from Washington, D.C. to Australia?

Flight times from Washington, D.C. to Australia vary, but if you’re flying out of Baltimore and flying into Sydney (one of the most popular routes), then the duration is 22h 30m on average. Another popular route from Washington, D.C. to Australia is flying from Washington, D.C. to Sydney, which will take roughly 23h 39m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Australia?

United Airlines, Qantas Airways and Air New Zealand are the top three most popular airlines that fly to Australia from Washington, D.C. according to our data. United Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 7 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Washington, D.C. to Australia?

Prices for flights from Washington, D.C. to Australia refresh daily.

How many operators does momondo search for flights from Washington, D.C. to Australia?

The number of operators available for flights from Washington, D.C. to Australia is 6 as of August 2026.

How old do you have to be to fly from Washington, D.C. to Australia?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Australia.

What documentation or ID do you need to fly to Australia?

The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$564 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

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Cheap round-trip flights

Enter your travel dates to find the best prices.

11:12 am - 10:25 pmIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

45h 13m3 stops Orlando Los Angeles Los Angeles Nadi

1:15 pm - 6:20 amSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

31h 05m3 stops Nadi Los Angeles Los Angeles Las Vegas Harry Reid Intl

$1,054Multiple Airlines

Wed, Sep 23 - Wed, Sep 30

11:12 am - 11:50 amIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

34h 38m3 stops Orlando Los Angeles Los Angeles Nadi

1:15 pm - 6:20 amSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

31h 05m3 stops Nadi Los Angeles Los Angeles Las Vegas Harry Reid Intl

$1,068Multiple Airlines

Wed, Sep 23 - Wed, Sep 30

6:52 pm - 6:55 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

22h 03m1 stop San Francisco

9:30 am - 7:15 amSYD Sydney Kingsford Smith-BWI Baltimore/Washington

35h 45m2 stops Los Angeles Los Angeles San Francisco

$1,238United Airlines

Mon, Aug 31 - Mon, Sep 14

5:44 pm - 7:00 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

23h 16m1 stop Los Angeles Los Angeles

11:20 am - 5:34 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

21h 14m1 stop San Francisco

$1,238United Airlines

Sun, Aug 23 - Wed, Oct 14

8:30 am - 8:35 amIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

32h 05m2 stops Los Angeles Los Angeles Auckland Intl

9:55 am - 12:50 amSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

30h 55m2 stops Auckland Intl Los Angeles Los Angeles

$1,247Air New Zealand

Tue, Feb 2 - Tue, Feb 16

8:30 am - 8:35 amIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

32h 05m2 stops Los Angeles Los Angeles Auckland Intl

2:05 pm - 12:50 amSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

26h 45m2 stops Auckland Intl Los Angeles Los Angeles

$1,247Air New Zealand

Tue, Jan 26 - Wed, Feb 17

11:02 am - 9:50 amBWI Baltimore/Washington-MEL Melbourne

30h 48m2 stops Atlanta Hartsfield-Jackson Los Angeles Los Angeles

12:00 pm - 8:43 pmMEL Melbourne-BWI Baltimore/Washington

24h 43m2 stops Los Angeles Los Angeles Atlanta Hartsfield-Jackson

$1,262Delta

Mon, Nov 2 - Tue, Nov 17

2:11 pm - 7:00 amBWI Baltimore/Washington-MEL Melbourne

25h 49m2 stops Atlanta Hartsfield-Jackson Los Angeles Los Angeles

10:10 am - 9:33 pmMEL Melbourne-BWI Baltimore/Washington

27h 23m2 stops Los Angeles Los Angeles Minneapolis St Paul

$1,263Delta

Tue, Oct 27 - Wed, Nov 11

3:57 pm - 6:55 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

24h 58m1 stop Dallas/Fort Worth

12:00 pm - 9:29 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

23h 29m1 stop Dallas/Fort Worth

$1,268Qantas Airways

Wed, Sep 23 - Wed, Sep 30

4:04 pm - 6:55 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

23h 51m1 stop Dallas/Fort Worth

2:05 pm - 7:16 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

21h 11m1 stop Dallas/Fort Worth

$1,273Qantas Airways

Wed, Oct 21 - Wed, Nov 18

Cheap last minute flights

Enter your travel dates to find the best prices.

1:15 pm - 6:55 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

27h 40m2 stops Houston George Bush Intcntl San Francisco

9:30 am - 4:35 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

21h 05m1 stop Los Angeles Los Angeles

$1,242United Airlines

Tue, Aug 11 - Wed, Aug 19

4:18 pm - 7:00 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

24h 42m2 stops Denver Intl Los Angeles Los Angeles

9:30 am - 6:42 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

23h 12m2 stops Los Angeles Los Angeles Chicago O'Hare Intl

$1,242United Airlines

Wed, Aug 12 - Wed, Aug 19

12:30 pm - 6:50 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

28h 20m2 stops Detroit Metropolitan Wayne County Los Angeles Los Angeles

9:15 am - 6:22 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

23h 07m2 stops Los Angeles Los Angeles Minneapolis St Paul

$1,293Delta

Tue, Aug 11 - Thu, Aug 20

5:36 pm - 6:50 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

23h 14m2 stops Detroit Metropolitan Wayne County Los Angeles Los Angeles

9:15 am - 6:22 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

23h 07m2 stops Los Angeles Los Angeles Minneapolis St Paul

$1,293Delta

Tue, Aug 11 - Fri, Aug 21

11:59 am - 7:05 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

29h 06m2 stops Charlotte Douglas Los Angeles Los Angeles

9:10 am - 8:49 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

25h 39m2 stops Los Angeles Los Angeles Charlotte Douglas

$1,339American Airlines

Thu, Aug 13 - Thu, Aug 20

3:45 pm - 7:05 amIAD Washington, D.C. Dulles Intl-BNE Brisbane

25h 20m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

10:00 am - 7:00 pmBNE Brisbane-IAD Washington, D.C. Dulles Intl

23h 00m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,401Air Canada

Tue, Aug 11 - Sun, Oct 11

4:20 pm - 7:05 amDCA Washington, D.C. Reagan-National-BNE Brisbane

24h 45m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

10:00 am - 10:20 amBNE Brisbane-DCA Washington, D.C. Reagan-National

38h 20m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,401Air Canada

Tue, Aug 11 - Sun, Oct 11

1:15 pm - 8:45 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

29h 30m2 stops Houston George Bush Intcntl Auckland Intl

11:55 am - 11:45 amSYD Sydney Kingsford Smith-BWI Baltimore/Washington

37h 50m2 stops Auckland Intl Houston George Bush Intcntl

$1,412Air New Zealand

Thu, Aug 13 - Thu, Aug 20

10:10 pm - 8:45 amIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

44h 35m2 stops San Francisco Auckland Intl

10:20 am - 10:19 pmSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

25h 59m1 stop San Francisco

$1,568Air New Zealand

Sat, Aug 15 - Mon, Aug 31

5:35 pm - 7:05 amDCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

23h 30m1 stop Los Angeles Los Angeles

9:10 am - 4:29 pmSYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

45h 19m1 stop Los Angeles Los Angeles

$3,329American Airlines

Tue, Aug 11 - Wed, Aug 19

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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

Nov 10

BWI11:51 amBaltimore/Washington

25h 09m

1 stop

MEL5:00 amMelbourne

Nov 24

MEL11:00 amMelbourne

24h 12m

2 stops

BWI7:12 pmBaltimore/Washington

$1,270

American Airlines

Sep 23

BWI2:54 pmBaltimore/Washington

26h 11m

2 stops

SYD7:05 amSydney Kingsford Smith

Sep 30

SYD5:50 pmSydney Kingsford Smith

29h 54m

2 stops

BWI9:44 amBaltimore/Washington

$1,298

American Airlines

Sep 9

BWI3:57 pmBaltimore/Washington

24h 58m

1 stop

SYD6:55 amSydney Kingsford Smith

Sep 21

SYD12:00 pmSydney Kingsford Smith

24h 59m

1 stop

BWI10:59 pmBaltimore/Washington

$1,305

Qantas Airways flights from Washington, D.C. to Australia

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

Qantas Airways

Sep 23

BWI3:57 pmBaltimore/Washington

24h 58m

1 stop

SYD6:55 amSydney Kingsford Smith

Sep 30

SYD12:00 pmSydney Kingsford Smith

23h 29m

1 stop

BWI9:29 pmBaltimore/Washington

$1,268

Qantas Airways

Oct 21

BWI4:04 pmBaltimore/Washington

23h 51m

1 stop

SYD6:55 amSydney Kingsford Smith

Nov 18

SYD2:05 pmSydney Kingsford Smith

21h 11m

1 stop

BWI7:16 pmBaltimore/Washington

$1,273

Qantas Airways

Oct 21

BWI4:04 pmBaltimore/Washington

23h 51m

1 stop

SYD6:55 amSydney Kingsford Smith

Nov 18

SYD2:05 pmSydney Kingsford Smith

21h 11m

1 stop

BWI7:16 pmBaltimore/Washington

$1,274

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Wed 9/23

11:12 am-10:25 pm

3 stops45h 13m

Sydney Kingsford Smith

Wed 9/30

1:15 pm-6:20 am

3 stops31h 05m

$1,054

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Wed 9/23

11:12 am-11:50 am

3 stops34h 38m

Sydney Kingsford Smith

Wed 9/30

1:15 pm-6:20 am

3 stops31h 05m

$1,068

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Mon 8/31

6:52 pm-6:55 am

1 stop22h 03m

Sydney Kingsford Smith

Mon 9/14

9:30 am-7:15 am

2 stops35h 45m

$1,238

Quickest round-trip

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Sun 8/23

5:44 pm-7:00 am

1 stop23h 16m

Sydney Kingsford Smith

Wed 10/14

11:20 am-5:34 pm

1 stop21h 14m

$1,238

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Tue 2/2

8:30 am-8:35 am

2 stops32h 05m

Sydney Kingsford Smith

Tue 2/16

9:55 am-12:50 am

2 stops30h 55m

$1,247

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Tue 1/26

8:30 am-8:35 am

2 stops32h 05m

Sydney Kingsford Smith

Wed 2/17

2:05 pm-12:50 am

2 stops26h 45m

$1,247

BaltimoreMelbourne

BWI Baltimore/Washington - MEL Melbourne

BWIMEL

Baltimore/Washington

Mon 11/2

11:02 am-9:50 am

2 stops30h 48m

Melbourne

Tue 11/17

12:00 pm-8:43 pm

2 stops24h 43m

$1,262

BaltimoreMelbourne

BWI Baltimore/Washington - MEL Melbourne

BWIMEL

Baltimore/Washington

Tue 10/27

2:11 pm-7:00 am

2 stops25h 49m

Melbourne

Wed 11/11

10:10 am-9:33 pm

2 stops27h 23m

$1,263

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Wed 9/23

3:57 pm-6:55 am

1 stop24h 58m

Sydney Kingsford Smith

Wed 9/30

12:00 pm-9:29 pm

1 stop23h 29m

$1,268

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Wed 10/21

4:04 pm-6:55 am

1 stop23h 51m

Sydney Kingsford Smith

Wed 11/18

2:05 pm-7:16 pm

1 stop21h 11m

$1,273

Flights are sorted by cheapest round-trip 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?

The month of May is, on average, the cheapest month to fly to Australia from Washington, D.C., with most prices found around $1,380. If you aren’t able to travel during the month of May, then book flights to Australia from Washington, D.C. during April instead. Flights to Australia in April, while not as cheap as those in May, still average around $1,391.

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 $1,646 when searching weeks out. 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 $1,266 on momondo.

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

You could potentially save up to 3% 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 refresh daily.
How many operators does momondo search for flights from Washington, D.C. to Australia?
The number of operators available for flights from Washington, D.C. to Australia is 6 as of August 2026.
How old do you have to be to fly from Washington, D.C. to Australia?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Australia.
What documentation or ID do you need to fly to Australia?
The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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
Delta	PriceFrom $282	Free Cancellation	Rating 7.8 8,504 reviews	Search Delta flights
United Airlines	PriceFrom $337	Free Cancellation	Rating 7.4 10,103 reviews	Search United Airlines flights
Air Canada	PriceFrom $787	Free Cancellation	Rating 7.1 11,461 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $787	Free Cancellation	Rating 7.5 1,081 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $836	Free Cancellation	Rating 7.1 11,903 reviews	Search American Airlines flights
Air New Zealand	PriceFrom $1,285	Free Cancellation	Rating 8.0 659 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $2,062	Free Cancellation	Rating 7.4 3,740 reviews	Search Qatar Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Australia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Australia for you.

Can I find flights from Washington, D.C. to Australia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to Australia flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Australia?

Once you have performed a search for Washington, D.C. to Australia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to Australia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington, D.C. to Australia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.