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

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

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.

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 05m on average. Another popular route from Washington, D.C. to Australia is flying from Washington, D.C. to Sydney, which will take roughly 22h 37m. Keep in mind that layovers or delays could extend your travel time.

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 September 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.

$573 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.

7:02 am - 9:35 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

34h 33m2 stops Seattle/Tacoma Intl Vancouver Intl

11:20 am - 5:12 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

45h 52m2 stops Vancouver Intl Seattle/Tacoma Intl

$1,163Multiple Airlines

Sun, Nov 8 - Sun, Nov 15

6:11 pm - 9:35 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

47h 24m2 stops Seattle/Tacoma Intl Vancouver Intl

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

45h 51m2 stops Vancouver Intl Seattle/Tacoma Intl

$1,186Multiple Airlines

Tue, Mar 2 - Tue, Mar 9

7:00 am - 5:00 amBWI Baltimore/Washington-MEL Melbourne

31h 00m1 stop Dallas/Fort Worth

12:00 pm - 10:36 pmMEL Melbourne-BWI Baltimore/Washington

26h 36m1 stop Dallas/Fort Worth

$1,221American Airlines

Sun, Oct 25 - Tue, Nov 10

4:30 pm - 7:00 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

22h 30m1 stop Houston George Bush Intcntl

11:50 am - 9:05 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

25h 15m2 stops San Francisco Los Angeles

$1,225United Airlines

Mon, Nov 9 - Mon, Nov 16

4:30 pm - 7:00 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

22h 30m1 stop Houston George Bush Intcntl

9:15 am - 4:25 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

23h 10m1 stop Houston George Bush Intcntl

$1,225United Airlines

Mon, Nov 9 - Mon, Nov 16

7:50 pm - 8:50 amBWI Baltimore/Washington-MEL Melbourne

46h 00m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:10 am - 11:23 pmMEL Melbourne-BWI Baltimore/Washington

29h 13m2 stops Los Angeles Minneapolis St Paul

$1,242Delta

Sat, Oct 17 - Mon, Nov 9

7:50 pm - 8:50 amBWI Baltimore/Washington-MEL Melbourne

46h 00m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:10 am - 8:20 pmMEL Melbourne-BWI Baltimore/Washington

26h 10m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,242Delta

Sat, Oct 17 - Wed, Nov 4

7:00 am - 10:00 amIAD Washington, D.C. Dulles Intl-BNE Brisbane

36h 00m2 stops Los Angeles Auckland Intl

8:20 am - 6:36 amBNE Brisbane-IAD Washington, D.C. Dulles Intl

37h 16m2 stops Auckland Intl Los Angeles

$1,257Air New Zealand

Tue, Dec 8 - Tue, Feb 2

8:35 am - 10:00 amIAD Washington, D.C. Dulles Intl-BNE Brisbane

34h 25m2 stops Los Angeles Auckland Intl

11:15 am - 5:25 amBNE Brisbane-IAD Washington, D.C. Dulles Intl

33h 10m2 stops Auckland Intl Los Angeles

$1,257Air New Zealand

Tue, Dec 8 - Mon, Feb 1

11:37 am - 6:55 amDCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

27h 18m1 stop Dallas/Fort Worth

2:05 pm - 8:57 pmSYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

22h 52m1 stop Dallas/Fort Worth

$1,265American Airlines

Thu, Feb 25 - Tue, Mar 9

Cheap last minute flights

Enter your travel dates to find the best prices.

4:15 pm - 6:55 amIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

24h 40m1 stop San Francisco

9:55 am - 6:29 amSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

35h 34m2 stops Auckland Intl Los Angeles

$1,651Air New Zealand

Tue, Sep 29 - Thu, Oct 22

4:41 pm - 6:50 amDCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

24h 09m1 stop Los Angeles

10:15 am - 3:29 pmSYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

20h 14m1 stop Los Angeles

$1,677Delta

Wed, Sep 30 - Mon, Oct 12

4:41 pm - 6:50 amDCA Washington, D.C. Reagan-National-SYD Sydney Kingsford Smith

24h 09m1 stop Los Angeles

10:15 am - 3:29 pmSYD Sydney Kingsford Smith-DCA Washington, D.C. Reagan-National

20h 14m1 stop Los Angeles

$1,678Delta

Wed, Sep 30 - Mon, Oct 12

8:05 am - 6:55 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

32h 50m1 stop San Francisco

7:20 pm - 6:41 amSYD Sydney Kingsford Smith-BWI Baltimore/Washington

50h 21m2 stops Auckland Intl Los Angeles

$1,679Air New Zealand

Tue, Sep 29 - Thu, Oct 22

7:50 am - 11:45 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

37h 55m2 stops Seattle/Tacoma Intl Hong Kong Intl

10:20 pm - 12:16 amSYD Sydney Kingsford Smith-BWI Baltimore/Washington

40h 56m2 stops Hong Kong Intl Chicago O'Hare Intl

$1,763Cathay Pacific

Wed, Sep 30 - Mon, Oct 12

11:23 am - 11:45 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

34h 22m2 stops Chicago O'Hare Intl Hong Kong Intl

10:20 pm - 12:16 amSYD Sydney Kingsford Smith-BWI Baltimore/Washington

40h 56m2 stops Hong Kong Intl Chicago O'Hare Intl

$1,764Cathay Pacific

Wed, Sep 30 - Mon, Oct 12

10:18 pm - 6:30 amIAD Washington, D.C. Dulles Intl-BNE Brisbane

42h 12m2 stops Houston George Bush Intcntl San Francisco

10:20 am - 7:07 pmBNE Brisbane-IAD Washington, D.C. Dulles Intl

22h 47m1 stop San Francisco

$2,177United Airlines

Tue, Sep 29 - Sat, Mar 20

5:59 pm - 9:00 amDCA Washington, D.C. Reagan-National-BNE Brisbane

49h 01m2 stops San Francisco Melbourne

10:20 am - 9:59 pmBNE Brisbane-DCA Washington, D.C. Reagan-National

25h 39m1 stop San Francisco

$2,194United Airlines

Tue, Sep 29 - Sat, Mar 20

11:23 am - 5:00 amBWI Baltimore/Washington-BNE Brisbane

27h 37m2 stops Chicago O'Hare Intl Los Angeles

9:40 am - 5:16 pmBNE Brisbane-BWI Baltimore/Washington

21h 36m1 stop Dallas/Fort Worth

$2,234American Airlines

Tue, Sep 29 - Sat, Mar 20

8:40 am - 5:00 amDCA Washington, D.C. Reagan-National-BNE Brisbane

30h 20m1 stop Los Angeles

9:40 am - 7:46 pmBNE Brisbane-DCA Washington, D.C. Reagan-National

24h 06m1 stop Dallas/Fort Worth

$2,279American Airlines

Tue, Sep 29 - Sat, Mar 20

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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

Nov 9

BWI4:30 pmBaltimore/Washington

22h 30m

1 stop

SYD7:00 amSydney Kingsford Smith

Nov 16

SYD11:50 amSydney Kingsford Smith

25h 15m

2 stops

BWI9:05 pmBaltimore/Washington

$1,225

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

$1,226

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

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

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

Qantas Airways

Nov 11

BWI3:57 pmBaltimore/Washington

22h 58m

1 stop

SYD6:55 amSydney Kingsford Smith

Nov 18

SYD2:05 pmSydney Kingsford Smith

21h 12m

1 stop

BWI7:17 pmBaltimore/Washington

$1,311

Qantas Airways

Dec 8

BWI5:40 pmBaltimore/Washington

21h 50m

1 stop

BNE6:30 amBrisbane

Feb 2

BNE9:40 amBrisbane

21h 28m

1 stop

BWI4:08 pmBaltimore/Washington

$1,326

Qantas Airways

Oct 29

BWI7:14 pmBaltimore/Washington

21h 16m

1 stop

BNE6:30 amBrisbane

Nov 12

BNE9:40 amBrisbane

20h 27m

1 stop

BWI3:07 pmBaltimore/Washington

$1,334

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 11/8

7:02 am-9:35 am

2 stops34h 33m

Sydney Kingsford Smith

Sun 11/15

11:20 am-5:12 pm

2 stops45h 52m

$1,163

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Tue 3/2

6:11 pm-9:35 am

2 stops47h 24m

Sydney Kingsford Smith

Tue 3/9

11:20 am-5:11 pm

2 stops45h 51m

$1,186

BaltimoreMelbourne

BWI Baltimore/Washington - MEL Melbourne

BWIMEL

Baltimore/Washington

Sun 10/25

7:00 am-5:00 am

1 stop31h 00m

Melbourne

Tue 11/10

12:00 pm-10:36 pm

1 stop26h 36m

$1,221

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Mon 11/9

4:30 pm-7:00 am

1 stop22h 30m

Sydney Kingsford Smith

Mon 11/16

11:50 am-9:05 pm

2 stops25h 15m

$1,225

Quickest round-trip

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Mon 11/9

4:30 pm-7:00 am

1 stop22h 30m

Sydney Kingsford Smith

Mon 11/16

9:15 am-4:25 pm

1 stop23h 10m

$1,225

BaltimoreMelbourne

BWI Baltimore/Washington - MEL Melbourne

BWIMEL

Baltimore/Washington

Sat 10/17

7:50 pm-8:50 am

2 stops46h 00m

Melbourne

Mon 11/9

10:10 am-11:23 pm

2 stops29h 13m

$1,242

BaltimoreMelbourne

BWI Baltimore/Washington - MEL Melbourne

BWIMEL

Baltimore/Washington

Sat 10/17

7:50 pm-8:50 am

2 stops46h 00m

Melbourne

Wed 11/4

10:10 am-8:20 pm

2 stops26h 10m

$1,242

Washington, D.C.Brisbane

IAD Washington, D.C. Dulles Intl - BNE Brisbane

IADBNE

Washington, D.C. Dulles Intl

Tue 12/8

7:00 am-10:00 am

2 stops36h 00m

Brisbane

Tue 2/2

8:20 am-6:36 am

2 stops37h 16m

$1,257

Washington, D.C.Brisbane

IAD Washington, D.C. Dulles Intl - BNE Brisbane

IADBNE

Washington, D.C. Dulles Intl

Tue 12/8

8:35 am-10:00 am

2 stops34h 25m

Brisbane

Mon 2/1

11:15 am-5:25 am

2 stops33h 10m

$1,257

Washington, D.C.Sydney

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

DCASYD

Washington, D.C. Reagan-National

Thu 2/25

11:37 am-6:55 am

1 stop27h 18m

Sydney Kingsford Smith

Tue 3/9

2:05 pm-8:57 pm

1 stop22h 52m

$1,265

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 $1,377. 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 $1,621 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 $1,126 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	$573
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 $573. The best round-trip flight deal from Washington, D.C. to Australia found on momondo in the last 72 hours is $1,163.

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 September 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 10,246 reviews	Search United Airlines flights
Delta	PriceFrom $377	Free Cancellation	Rating 7.8 8,606 reviews	Search Delta flights
Air Canada	PriceFrom $787	Free Cancellation	Rating 7.1 11,701 reviews	Search Air Canada flights
American Airlines	PriceFrom $836	Free Cancellation	Rating 7.0 12,099 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $878	Free Cancellation	Rating 7.5 1,102 reviews	Search Qantas Airways flights
Air New Zealand	PriceFrom $1,149	Free Cancellation	Rating 8.0 670 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $2,062	Free Cancellation	Rating 7.3 3,730 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.