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?

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 23h 17m on average. Another popular route from Washington, D.C. to Australia is flying from Washington, D.C. to Sydney, which will take roughly 23h 22m. 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 49% 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 7 as of October 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.

$537 Cheap Flights from Washington, D.C. to Australia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. to Australia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:05 am - 7:55 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

32h 50m1 stop San Francisco

11:50 am - 5:26 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

21h 36m1 stop San Francisco

$1,223United Airlines

Sun, Oct 18 - Mon, Nov 2

8:05 am - 7:55 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

32h 50m1 stop San Francisco

11:50 am - 5:26 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

21h 36m1 stop San Francisco

$1,228United Airlines

Sun, Oct 18 - Mon, Nov 2

3:57 pm - 9:00 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

25h 03m2 stops Dallas/Fort Worth Los Angeles

2:05 pm - 10:53 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

24h 48m1 stop Dallas/Fort Worth

$1,238American Airlines

Mon, Nov 2 - Mon, Nov 9

9:00 am - 8:30 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

31h 30m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:40 am - 6:24 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

23h 44m2 stops Los Angeles Minneapolis St Paul

$1,241Delta

Mon, Nov 2 - Mon, Nov 9

2:11 pm - 8:30 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

26h 19m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:40 am - 9:41 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

27h 01m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,241Delta

Sun, Nov 1 - Wed, Nov 25

7:32 am - 12:45 pmIAD Washington, D.C. Dulles Intl-MEL Melbourne

37h 13m3 stops Atlanta Hartsfield-Jackson Los Angeles Nadi

1:55 pm - 5:10 amMEL Melbourne-IAD Washington, D.C. Dulles Intl

31h 15m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$1,242Multiple Airlines

Sun, Nov 15 - Sun, Nov 22

9:30 am - 8:50 pmDCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

43h 20m2 stops Los Angeles Hong Kong Intl

11:10 am - 8:59 pmSYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

25h 49m2 stops Los Angeles Phoenix Sky Harbor Intl

$1,260Multiple Airlines

Fri, Nov 6 - Thu, Nov 26

1:00 pm - 8:35 amIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

27h 35m2 stops Houston George Bush Intcntl Auckland Intl

11:50 am - 10:36 pmSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

26h 46m2 stops Auckland Intl Houston George Bush Intcntl

$1,286Air New Zealand

Tue, Mar 2 - Tue, Mar 9

7:50 pm - 10:35 amDCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

46h 45m2 stops Houston George Bush Intcntl Auckland Intl

9:55 am - 8:35 pmSYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

26h 40m2 stops Auckland Intl Houston George Bush Intcntl

$1,296Air New Zealand

Sat, Feb 20 - Tue, Mar 2

4:59 pm - 9:00 amDCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

24h 01m1 stop Los Angeles

1:00 pm - 8:57 pmSYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

22h 57m1 stop Dallas/Fort Worth

$1,818American Airlines

Mon, Mar 8 - Mon, Mar 29

Cheap last minute flights

Enter your travel dates to find the best prices.

5:36 pm - 8:50 amBWI Baltimore/Washington-MEL Melbourne

48h 14m2 stops Detroit Metropolitan Wayne County Los Angeles

9:10 am - 12:51 amMEL Melbourne-BWI Baltimore/Washington

30h 41m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,627Delta

Sat, Oct 10 - Sat, Oct 31

2:59 pm - 7:50 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

25h 51m2 stops Minneapolis St Paul Los Angeles

10:15 am - 11:28 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

28h 13m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,651Delta

Sat, Oct 10 - Sat, Oct 17

5:45 pm - 8:00 amIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

23h 15m1 stop Los Angeles

7:20 pm - 12:41 amSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

44h 21m2 stops Auckland Intl Los Angeles

$1,656Air New Zealand

Tue, Oct 6 - Thu, Oct 15

5:59 pm - 7:55 amDCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

22h 56m1 stop San Francisco

6:15 pm - 10:14 pmSYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

42h 59m2 stops Auckland Intl Houston George Bush Intcntl

$1,657Air New Zealand

Tue, Oct 6 - Thu, Oct 15

6:50 pm - 9:15 amBWI Baltimore/Washington-MEL Melbourne

23h 25m1 stop San Francisco

10:30 am - 4:37 pmMEL Melbourne-BWI Baltimore/Washington

21h 07m1 stop Los Angeles

$1,812United Airlines

Fri, Oct 9 - Fri, Oct 16

8:37 am - 8:30 amBWI Baltimore/Washington-MEL Melbourne

32h 53m2 stops Denver Intl Los Angeles

11:45 am - 9:05 pmMEL Melbourne-BWI Baltimore/Washington

24h 20m2 stops San Francisco Los Angeles

$1,816United Airlines

Fri, Oct 9 - Sat, Oct 31

7:13 pm - 11:15 pmIAD Washington, D.C. Dulles Intl-MEL Melbourne

37h 02m2 stops Dallas/Fort Worth Hong Kong Intl

3:30 pm - 6:38 amMEL Melbourne-IAD Washington, D.C. Dulles Intl

54h 08m2 stops Hong Kong Intl Los Angeles

$1,897Cathay Pacific

Sat, Oct 10 - Sat, Oct 31

7:13 pm - 11:15 pmIAD Washington, D.C. Dulles Intl-MEL Melbourne

37h 02m2 stops Dallas/Fort Worth Hong Kong Intl

3:30 pm - 12:30 amMEL Melbourne-IAD Washington, D.C. Dulles Intl

48h 00m2 stops Hong Kong Intl Dallas/Fort Worth

$1,902Cathay Pacific

Sat, Oct 10 - Sat, Oct 31

6:20 am - 10:15 pmBWI Baltimore/Washington-MEL Melbourne

48h 55m3 stops Charlotte Douglas Los Angeles Sydney Kingsford Smith

7:00 am - 7:26 pmMEL Melbourne-BWI Baltimore/Washington

27h 26m2 stops Sydney Kingsford Smith Dallas/Fort Worth

$2,063Qantas Airways

Fri, Oct 9 - Fri, Oct 16

8:00 am - 5:00 amBWI Baltimore/Washington-BNE Brisbane

31h 00m1 stop Los Angeles

9:40 am - 3:07 pmBNE Brisbane-BWI Baltimore/Washington

20h 27m1 stop Dallas/Fort Worth

$2,629Qantas Airways

Sun, Oct 11 - Thu, Nov 5

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

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

United Airlines

Oct 18

BWI8:05 amBaltimore/Washington

32h 50m

1 stop

SYD7:55 amSydney Kingsford Smith

Nov 2

SYD11:50 amSydney Kingsford Smith

21h 36m

1 stop

BWI5:26 pmBaltimore/Washington

$1,223

United Airlines

Oct 18

BWI8:05 amBaltimore/Washington

32h 50m

1 stop

SYD7:55 amSydney Kingsford Smith

Nov 2

SYD11:50 amSydney Kingsford Smith

21h 36m

1 stop

BWI5:26 pmBaltimore/Washington

$1,228

United Airlines

Oct 25

BWI12:45 pmBaltimore/Washington

27h 15m

1 stop

SYD7:00 amSydney Kingsford Smith

Nov 9

SYD9:15 amSydney Kingsford Smith

23h 10m

1 stop

BWI4:25 pmBaltimore/Washington

$1,229

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 6

BWI3:57 pmBaltimore/Washington

25h 03m

2 stops

SYD9:00 amSydney Kingsford Smith

Nov 13

SYD11:10 amSydney Kingsford Smith

23h 05m

2 stops

BWI6:15 pmBaltimore/Washington

$1,339

American Airlines

Feb 13

BWI5:27 pmBaltimore/Washington

22h 03m

1 stop

BNE6:30 amBrisbane

Feb 20

BNE9:40 amBrisbane

24h 20m

2 stops

BWI7:00 pmBaltimore/Washington

$1,343

American Airlines

Dec 2

BWI11:51 amBaltimore/Washington

27h 04m

1 stop

SYD6:55 amSydney Kingsford Smith

Dec 9

SYD2:05 pmSydney Kingsford Smith

21h 03m

1 stop

BWI7:08 pmBaltimore/Washington

$1,344

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

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Sun 10/18

8:05 am-7:55 am

1 stop32h 50m

Sydney Kingsford Smith

Mon 11/2

11:50 am-5:26 pm

1 stop21h 36m

$1,223

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Sun 10/18

8:05 am-7:55 am

1 stop32h 50m

Sydney Kingsford Smith

Mon 11/2

11:50 am-5:26 pm

1 stop21h 36m

$1,228

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Mon 11/2

3:57 pm-9:00 am

2 stops25h 03m

Sydney Kingsford Smith

Mon 11/9

2:05 pm-10:53 pm

1 stop24h 48m

$1,238

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Mon 11/2

9:00 am-8:30 am

2 stops31h 30m

Sydney Kingsford Smith

Mon 11/9

10:40 am-6:24 pm

2 stops23h 44m

$1,241

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Sun 11/1

2:11 pm-8:30 am

2 stops26h 19m

Sydney Kingsford Smith

Wed 11/25

10:40 am-9:41 pm

2 stops27h 01m

$1,241

Washington, D.C.Melbourne

IAD Washington, D.C. Dulles Intl - MEL Melbourne

IADMEL

Washington, D.C. Dulles Intl

Sun 11/15

7:32 am-12:45 pm

3 stops37h 13m

Melbourne

Sun 11/22

1:55 pm-5:10 am

3 stops31h 15m

$1,242

Washington, D.C.Sydney

DCA Washington, D.C. Reagan-National - SYD Sydney Kingsford Smith

DCASYD

Washington, D.C. Reagan-National

Fri 11/6

9:30 am-8:50 pm

2 stops43h 20m

Sydney Kingsford Smith

Thu 11/26

11:10 am-8:59 pm

2 stops25h 49m

$1,260

Washington, D.C.Sydney

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

IADSYD

Washington, D.C. Dulles Intl

Tue 3/2

1:00 pm-8:35 am

2 stops27h 35m

Sydney Kingsford Smith

Tue 3/9

11:50 am-10:36 pm

2 stops26h 46m

$1,286

Washington, D.C.Sydney

DCA Washington, D.C. Reagan-National - SYD Sydney Kingsford Smith

DCASYD

Washington, D.C. Reagan-National

Sat 2/20

7:50 pm-10:35 am

2 stops46h 45m

Sydney Kingsford Smith

Tue 3/2

9:55 am-8:35 pm

2 stops26h 40m

$1,296

Quickest round-trip

Washington, D.C.Sydney

DCA Washington, D.C. Reagan-National - SYD Sydney Kingsford Smith

DCASYD

Washington, D.C. Reagan-National

Mon 3/8

4:59 pm-9:00 am

1 stop24h 01m

Sydney Kingsford Smith

Mon 3/29

1:00 pm-8:57 pm

1 stop22h 57m

$1,818

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 November is, on average, the cheapest month to fly to Australia from Washington, D.C., with most prices found around $1,369. If you aren’t able to travel during the month of November, then book flights to Australia from Washington, D.C. during April instead. Flights to Australia in April, while not as cheap as those in November, still average around $1,390.

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 $1,613 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 $1,285 on momondo.

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

Best Price Found	$537
Fastest flight time	21h 59m
Direct flights	None

The best one-way flight to Australia from Washington, D.C. in the past 72 hours is $537. The best round-trip flight deal from Washington, D.C. to Australia found on momondo in the last 72 hours is $1,223.

The fastest flight from Washington, D.C. to Australia takes 21h 59m

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 7 as of October 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
United Airlines	PriceFrom $357	Free Cancellation	Rating 7.4 10,286 reviews	Search United Airlines flights
Delta	PriceFrom $377	Free Cancellation	Rating 7.8 8,629 reviews	Search Delta flights
Air Canada	PriceFrom $787	Free Cancellation	Rating 7.1 11,723 reviews	Search Air Canada flights
American Airlines	PriceFrom $836	Free Cancellation	Rating 7.0 12,126 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $878	Free Cancellation	Rating 7.5 1,103 reviews	Search Qantas Airways flights
Air New Zealand	PriceFrom $1,195	Free Cancellation	Rating 8.0 669 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $2,062	Free Cancellation	Rating 7.3 3,728 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.