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

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

What airlines fly to Australia?

United Airlines, Qantas Airways and American Airlines 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 59% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 8 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 24h 33m. 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 April 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

1 adult

0 bags

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.

6:57 pm - 7:20 pm

DCA

MEL

34h 23m

2 stops

7:30 am - 10:59 pm

MEL

DCA

29h 29m

2 stops

$1,179Multiple Airlines

Sat, Aug 15 - Sat, Aug 29

4:23 pm - 8:15 am

BWI

MEL

25h 52m

2 stops

10:55 am - 9:26 pm

MEL

BWI

24h 31m

2 stops

$1,263Lufthansa

Tue, Jun 9 - Tue, Jun 16

7:27 am - 5:00 am

BWI

MEL

31h 33m

1 stop

1:35 pm - 11:44 pm

MEL

BWI

24h 09m

1 stop

$1,265American Airlines

Mon, Jun 8 - Mon, Jun 15

2:59 pm - 5:00 am

BWI

MEL

24h 01m

1 stop

1:35 pm - 11:44 pm

MEL

BWI

24h 09m

1 stop

$1,266American Airlines

Mon, Jun 8 - Mon, Jun 15

7:23 pm - 7:30 am

BWI

MEL

22h 07m

1 stop

10:55 am - 11:30 pm

MEL

BWI

26h 35m

2 stops

$1,267United Airlines

Mon, Jun 8 - Mon, Jun 15

10:44 am - 7:30 am

BWI

MEL

30h 46m

2 stops

10:55 am - 12:33 am

MEL

BWI

27h 38m

2 stops

$1,268Lufthansa

Mon, Jun 8 - Mon, Jun 15

7:23 pm - 7:30 am

BWI

MEL

22h 07m

1 stop

10:55 am - 5:57 pm

MEL

BWI

21h 02m

1 stop

$1,269United Airlines

Fri, Jun 5 - Fri, Jun 12

1:59 pm - 6:50 am

BWI

SYD

26h 51m

2 stops

9:15 am - 8:47 pm

SYD

BWI

25h 32m

2 stops

$1,345Delta

Mon, May 25 - Tue, Jun 2

5:59 pm - 6:55 am

IAD

SYD

22h 56m

1 stop

12:00 pm - 11:26 pm

SYD

IAD

25h 26m

1 stop

$1,364Qantas Airways

Wed, May 13 - Mon, May 18

7:17 pm - 6:55 am

BWI

SYD

21h 38m

1 stop

12:00 pm - 11:09 pm

SYD

BWI

25h 09m

1 stop

$1,364Qantas Airways

Wed, May 13 - Mon, May 18

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

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

Alaska Airlines

Sep 4

DCA9:30 amWashington, D.C. Reagan-National

30h 55m

2 stops

SYD6:25 amSydney Kingsford Smith

Sep 8

SYD5:50 pmSydney Kingsford Smith

40h 10m

1 stop

DCA8:00 pmWashington, D.C. Reagan-National

$1,549

Alaska Airlines

Sep 24

IAD7:00 amWashington, D.C. Dulles Intl

34h 30m

2 stops

SYD7:30 amSydney Kingsford Smith

Oct 7

SYD6:50 pmSydney Kingsford Smith

27h 38m

2 stops

IAD7:28 amWashington, D.C. Dulles Intl

$1,551

Alaska Airlines

May 1

BWI7:04 amBaltimore/Washington

33h 41m

3 stops

MEL6:45 amMelbourne

May 14

MEL9:45 amMelbourne

43h 32m

2 stops

BWI3:17 pmBaltimore/Washington

$2,680

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

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

Qantas Airways

May 13

IAD5:59 pmWashington, D.C. Dulles Intl

22h 56m

1 stop

SYD6:55 amSydney Kingsford Smith

May 18

SYD12:00 pmSydney Kingsford Smith

25h 26m

1 stop

IAD11:26 pmWashington, D.C. Dulles Intl

$1,364

Qantas Airways

Jun 3

IAD7:24 pmWashington, D.C. Dulles Intl

21h 31m

1 stop

SYD6:55 amSydney Kingsford Smith

Jun 16

SYD12:00 pmSydney Kingsford Smith

20h 34m

1 stop

IAD6:34 pmWashington, D.C. Dulles Intl

$1,366

Qantas Airways

Aug 9

IAD6:38 pmWashington, D.C. Dulles Intl

22h 17m

1 stop

SYD6:55 amSydney Kingsford Smith

Aug 23

SYD12:00 pmSydney Kingsford Smith

24h 52m

1 stop

IAD10:52 pmWashington, D.C. Dulles Intl

$1,384

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.Melbourne

DCA - MEL

DCAMEL

Washington, D.C. Reagan-National

Sat 8/15

6:57 pm-7:20 pm

2 stops34h 23m

Melbourne

Sat 8/29

7:30 am-10:59 pm

2 stops29h 29m

$1,179

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Tue 6/9

4:23 pm-8:15 am

2 stops25h 52m

Melbourne

Tue 6/16

10:55 am-9:26 pm

2 stops24h 31m

$1,263

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 6/8

7:27 am-5:00 am

1 stop31h 33m

Melbourne

Mon 6/15

1:35 pm-11:44 pm

1 stop24h 09m

$1,265

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 6/8

2:59 pm-5:00 am

1 stop24h 01m

Melbourne

Mon 6/15

1:35 pm-11:44 pm

1 stop24h 09m

$1,266

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 6/8

7:23 pm-7:30 am

1 stop22h 07m

Melbourne

Mon 6/15

10:55 am-11:30 pm

2 stops26h 35m

$1,267

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 6/8

10:44 am-7:30 am

2 stops30h 46m

Melbourne

Mon 6/15

10:55 am-12:33 am

2 stops27h 38m

$1,268

Quickest round-trip

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Fri 6/5

7:23 pm-7:30 am

1 stop22h 07m

Melbourne

Fri 6/12

10:55 am-5:57 pm

1 stop21h 02m

$1,269

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 5/25

1:59 pm-6:50 am

2 stops26h 51m

Sydney Kingsford Smith

Tue 6/2

9:15 am-8:47 pm

2 stops25h 32m

$1,345

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 5/13

5:59 pm-6:55 am

1 stop22h 56m

Sydney Kingsford Smith

Mon 5/18

12:00 pm-11:26 pm

1 stop25h 26m

$1,364

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 5/13

7:17 pm-6:55 am

1 stop21h 38m

Sydney Kingsford Smith

Mon 5/18

12:00 pm-11:09 pm

1 stop25h 09m

$1,364

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 February is, on average, the cheapest month to fly to Australia from Washington, D.C., with most prices found around $1,294. If you aren’t able to travel during the month of February, then book flights to Australia from Washington, D.C. during April instead. Flights to Australia in April, while not as cheap as those in February, still average around $1,297.

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 $1,636 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 $758 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 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.

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 April 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 $276	Free Cancellation	Rating 7.9 8,460 reviews	Search Delta flights
United Airlines	PriceFrom $327	Free Cancellation	Rating 7.4 9,664 reviews	Search United Airlines flights
Fiji Airways	PriceFrom $719	Free Cancellation	Rating 8.1 240 reviews	Search Fiji Airways flights
Air Canada	PriceFrom $787	Free Cancellation	Rating 7.1 10,974 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $787	Free Cancellation	Rating 7.5 1,027 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $836	Free Cancellation	Rating 7.1 11,668 reviews	Search American Airlines flights
Qatar Airways	PriceFrom $1,195	Free Cancellation	Rating 7.4 3,725 reviews	Search Qatar Airways flights
Air New Zealand	PriceFrom $1,195	Free Cancellation	Rating 8.0 636 reviews	Search Air New Zealand 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.