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

American Airlines, United Airlines, and Alaska Airlines 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 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.

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 21h 37m on average. Another popular route from Washington, D.C. to Australia is flying from Washington, D.C. to Sydney, which will take roughly 26h 59m. 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 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.

$551 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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

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 - 10:17 amSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

35h 02m3 stops Nadi Los Angeles Los Angeles Orlando

$992Multiple Airlines

Wed, Sep 9 - Wed, Sep 16

7:50 am - 12:25 pmIAD Washington, D.C. Dulles Intl-MEL Melbourne

38h 35m3 stops Atlanta Hartsfield-Jackson Los Angeles Los Angeles Nadi

1:25 pm - 10:27 amMEL Melbourne-IAD Washington, D.C. Dulles Intl

35h 02m3 stops Nadi Los Angeles Los Angeles Orlando

$1,037Multiple Airlines

Sun, Sep 13 - Wed, Sep 23

8:00 am - 6:55 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

32h 55m1 stop San Francisco

9:30 am - 6:46 amSYD Sydney Kingsford Smith-BWI Baltimore/Washington

35h 16m1 stop Los Angeles Los Angeles

$1,227United Airlines

Tue, Aug 18 - Sun, Sep 20

8:00 am - 6:55 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

32h 55m1 stop San Francisco

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

21h 05m1 stop Los Angeles Los Angeles

$1,227United Airlines

Wed, Aug 19 - Sun, Sep 20

8:35 am - 8:45 amIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

34h 10m2 stops San Francisco Auckland Intl

11:55 am - 12:41 amSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

27h 46m2 stops Auckland Intl Los Angeles Los Angeles

$1,247Air New Zealand

Sun, Aug 23 - Wed, Oct 14

3:36 pm - 8:45 amIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

26h 09m2 stops Los Angeles Los Angeles Auckland Intl

2:05 pm - 5:26 amSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

31h 21m2 stops Auckland Intl Los Angeles Los Angeles

$1,247Air New Zealand

Wed, Oct 21 - Wed, Nov 18

11:54 am - 7:30 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

29h 36m2 stops Chicago O'Hare Intl Los Angeles Los Angeles

9:10 am - 11:37 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

28h 27m2 stops Los Angeles Los Angeles Chicago O'Hare Intl

$1,248American Airlines

Mon, Aug 31 - Mon, Sep 7

7:30 am - 8:50 amBWI Baltimore/Washington-MEL Melbourne

34h 20m2 stops Minneapolis St Paul Los Angeles Los Angeles

11:00 am - 8:20 pmMEL Melbourne-BWI Baltimore/Washington

24h 20m2 stops Los Angeles Los Angeles Atlanta Hartsfield-Jackson

$1,262Delta

Sun, Oct 11 - Wed, Oct 28

2:11 pm - 8:50 amBWI Baltimore/Washington-MEL Melbourne

27h 39m2 stops Atlanta Hartsfield-Jackson Los Angeles Los Angeles

11:00 am - 11:23 pmMEL Melbourne-BWI Baltimore/Washington

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

$1,262Delta

Mon, Oct 12 - Sun, Oct 25

2:26 pm - 9:30 amBWI Baltimore/Washington-MEL Melbourne

27h 04m2 stops Charlotte Douglas Los Angeles Los Angeles

12:00 pm - 7:12 pmMEL Melbourne-BWI Baltimore/Washington

23h 12m1 stop Dallas/Fort Worth

$1,294American Airlines

Mon, Nov 9 - Thu, Nov 26

Cheap last minute flights

Enter your travel dates to find the best prices.

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

25h 00m1 stop Dallas/Fort Worth

12:00 pm - 9:34 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

23h 34m1 stop Dallas/Fort Worth

$1,184American Airlines

Mon, Aug 10 - Wed, Aug 19

3:55 pm - 7:05 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

25h 10m2 stops Dallas/Fort Worth Los Angeles Los Angeles

12:00 pm - 9:52 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

23h 52m2 stops Dallas/Fort Worth Charlotte Douglas

$1,188American Airlines

Mon, Aug 10 - Wed, Aug 19

3:03 pm - 7:00 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

25h 57m2 stops Houston George Bush Intcntl Los Angeles Los Angeles

10:20 am - 5:40 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

21h 20m1 stop San Francisco

$1,237United Airlines

Mon, Aug 10 - Wed, Aug 26

7:23 pm - 7:00 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

21h 37m1 stop Los Angeles Los Angeles

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

21h 05m1 stop Los Angeles Los Angeles

$1,237United Airlines

Mon, Aug 10 - Mon, Aug 24

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

$1,243Delta

Mon, Aug 10 - Tue, Aug 18

9:59 am - 6:50 amBWI Baltimore/Washington-SYD Sydney Kingsford Smith

30h 51m2 stops Detroit Metropolitan Wayne County Los Angeles Los Angeles

9:15 am - 7:50 pmSYD Sydney Kingsford Smith-BWI Baltimore/Washington

24h 35m2 stops Los Angeles Los Angeles Atlanta Hartsfield-Jackson

$1,243Delta

Mon, Aug 10 - Wed, Aug 19

9:55 am - 7:05 amIAD Washington, D.C. Dulles Intl-BNE Brisbane

31h 10m2 stops Toronto Pearson Intl Vancouver Intl

10:00 am - 9:23 amBNE Brisbane-IAD Washington, D.C. Dulles Intl

37h 23m2 stops Vancouver Intl Chicago O'Hare Intl

$1,429Air Canada

Sun, Aug 9 - Sun, Aug 23

9:45 am - 7:20 amIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

31h 35m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

9:20 am - 4:41 pmSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

45h 21m2 stops Vancouver Intl Toronto Pearson Intl

$1,433Air Canada

Tue, Aug 11 - Mon, Aug 17

9:50 am - 6:45 amIAD Washington, D.C. Dulles Intl-MEL Melbourne

30h 55m2 stops Las Vegas Harry Reid Intl Ontario

9:45 am - 4:07 pmMEL Melbourne-IAD Washington, D.C. Dulles Intl

44h 22m2 stops Los Angeles Los Angeles Orlando

$1,502Multiple Airlines

Mon, Aug 10 - Wed, Aug 26

9:50 am - 7:05 amIAD Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith

31h 15m2 stops Las Vegas Harry Reid Intl Los Angeles Los Angeles

9:10 am - 8:04 amSYD Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl

36h 54m2 stops Los Angeles Los Angeles Las Vegas Harry Reid Intl

$1,523Multiple Airlines

Mon, Aug 10 - Wed, Aug 19

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Delta flights from Washington, D.C. to Australia

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

Delta

Aug 10

BWI9:59 amBaltimore/Washington

30h 51m

2 stops

SYD6:50 amSydney Kingsford Smith

Aug 19

SYD9:15 amSydney Kingsford Smith

24h 35m

2 stops

BWI7:50 pmBaltimore/Washington

$1,243

Delta

Aug 10

BWI9:59 amBaltimore/Washington

31h 51m

2 stops

MEL7:50 amMelbourne

Aug 26

MEL10:00 amMelbourne

23h 50m

2 stops

BWI7:50 pmBaltimore/Washington

$1,254

Delta

Oct 11

BWI7:30 amBaltimore/Washington

34h 20m

2 stops

MEL8:50 amMelbourne

Oct 27

MEL11:00 amMelbourne

24h 20m

2 stops

BWI8:20 pmBaltimore/Washington

$1,262

Air New Zealand flights from Washington, D.C. to Australia

Our best Air New Zealand deals on Washington, D.C. to Australia flight tickets

Air New Zealand

Aug 23

IAD8:35 amWashington, D.C. Dulles Intl

34h 10m

2 stops

SYD8:45 amSydney Kingsford Smith

Oct 14

SYD9:55 amSydney Kingsford Smith

27h 35m

2 stops

IAD10:30 pmWashington, D.C. Dulles Intl

$1,247

Air New Zealand

Nov 9

IAD8:25 amWashington, D.C. Dulles Intl

32h 10m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 23

SYD2:05 pmSydney Kingsford Smith

31h 21m

2 stops

IAD5:26 amWashington, D.C. Dulles Intl

$1,248

Air New Zealand

Aug 23

BWI9:00 amBaltimore/Washington

33h 45m

2 stops

SYD8:45 amSydney Kingsford Smith

Oct 14

SYD11:55 amSydney Kingsford Smith

33h 46m

2 stops

BWI6:41 amBaltimore/Washington

$1,257

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 9/9

11:12 am-11:50 am

3 stops34h 38m

Sydney Kingsford Smith

Wed 9/16

1:15 pm-10:17 am

3 stops35h 02m

$992

Washington, D.C.Melbourne

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

IADMEL

Washington, D.C. Dulles Intl

Sun 9/13

7:50 am-12:25 pm

3 stops38h 35m

Melbourne

Wed 9/23

1:25 pm-10:27 am

3 stops35h 02m

$1,037

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Tue 8/18

8:00 am-6:55 am

1 stop32h 55m

Sydney Kingsford Smith

Sun 9/20

9:30 am-6:46 am

1 stop35h 16m

$1,227

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Wed 8/19

8:00 am-6:55 am

1 stop32h 55m

Sydney Kingsford Smith

Sun 9/20

9:30 am-4:35 pm

1 stop21h 05m

$1,227

Washington, D.C.Sydney

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

IADSYD

Washington, D.C. Dulles Intl

Sun 8/23

8:35 am-8:45 am

2 stops34h 10m

Sydney Kingsford Smith

Wed 10/14

11:55 am-12:41 am

2 stops27h 46m

$1,247

Washington, D.C.Sydney

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

IADSYD

Washington, D.C. Dulles Intl

Wed 10/21

3:36 pm-8:45 am

2 stops26h 09m

Sydney Kingsford Smith

Wed 11/18

2:05 pm-5:26 am

2 stops31h 21m

$1,247

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Mon 8/31

11:54 am-7:30 am

2 stops29h 36m

Sydney Kingsford Smith

Mon 9/7

9:10 am-11:37 pm

2 stops28h 27m

$1,248

BaltimoreMelbourne

BWI Baltimore/Washington - MEL Melbourne

BWIMEL

Baltimore/Washington

Sun 10/11

7:30 am-8:50 am

2 stops34h 20m

Melbourne

Wed 10/28

11:00 am-8:20 pm

2 stops24h 20m

$1,262

BaltimoreMelbourne

BWI Baltimore/Washington - MEL Melbourne

BWIMEL

Baltimore/Washington

Mon 10/12

2:11 pm-8:50 am

2 stops27h 39m

Melbourne

Sun 10/25

11:00 am-11:23 pm

2 stops27h 23m

$1,262

Quickest round-trip

BaltimoreMelbourne

BWI Baltimore/Washington - MEL Melbourne

BWIMEL

Baltimore/Washington

Mon 11/9

2:26 pm-9:30 am

2 stops27h 04m

Melbourne

Thu 11/26

12:00 pm-7:12 pm

1 stop23h 12m

$1,294

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 $1,637 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 $1,118 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 8,499 reviews	Search Delta flights
United Airlines	PriceFrom $337	Free Cancellation	Rating 7.4 10,081 reviews	Search United Airlines flights
Air Canada	PriceFrom $787	Free Cancellation	Rating 7.1 11,436 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $787	Free Cancellation	Rating 7.5 1,079 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $836	Free Cancellation	Rating 7.1 11,876 reviews	Search American Airlines flights
Air New Zealand	PriceFrom $1,195	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

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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.