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

United Airlines, American Airlines, and Delta 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 21h 56m on average. Another popular route from Washington, D.C. to Australia is flying from Washington, D.C. to Sydney, which will take roughly 30h 48m. Keep in mind that layovers or delays could extend your travel time.

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.

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.

$527 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.

11:07 am - 11:50 am

IAD

SYD

34h 43m

3 stops

1:20 pm - 8:12 am

SYD

IAD

32h 52m

3 stops

$1,058Multiple Airlines

Wed, May 27 - Wed, Jun 3

7:00 am - 11:50 am

DCA

SYD

38h 50m

3 stops

1:20 pm - 9:58 pm

SYD

DCA

46h 38m

3 stops

$1,112Multiple Airlines

Wed, May 27 - Wed, Jun 3

3:00 pm - 5:00 am

BWI

MEL

24h 00m

1 stop

1:35 pm - 11:43 pm

MEL

BWI

24h 08m

1 stop

$1,266American Airlines

Mon, Jun 22 - Wed, Jul 22

2:59 pm - 6:45 am

BWI

MEL

25h 46m

2 stops

9:45 am - 8:40 pm

MEL

BWI

24h 55m

2 stops

$1,271American Airlines

Thu, May 21 - Thu, May 28

7:23 pm - 7:30 am

BWI

MEL

22h 07m

1 stop

10:55 am - 5:57 pm

MEL

BWI

21h 02m

1 stop

$1,274United Airlines

Wed, Jun 10 - Wed, Jun 17

3:00 pm - 7:30 am

BWI

MEL

26h 30m

2 stops

9:30 am - 5:43 pm

MEL

BWI

22h 13m

1 stop

$1,277United Airlines

Wed, May 27 - Wed, Jun 10

3:48 pm - 6:30 am

BWI

BNE

24h 42m

1 stop

9:15 am - 2:30 pm

BNE

BWI

20h 15m

1 stop

$1,329Qantas Airways

Mon, Oct 26 - Sun, Nov 8

3:48 pm - 9:20 am

BWI

BNE

27h 32m

2 stops

9:15 am - 2:30 pm

BNE

BWI

20h 15m

1 stop

$1,337Qantas Airways

Sat, Oct 17 - Thu, Nov 12

1:03 pm - 10:55 am

IAD

MEL

30h 52m

2 stops

11:30 am - 4:13 pm

MEL

IAD

20h 43m

1 stop

$1,599Air New Zealand

Tue, Oct 20 - Wed, Nov 11

5:35 pm - 7:30 am

IAD

MEL

23h 55m

1 stop

3:00 pm - 10:36 pm

MEL

IAD

45h 36m

2 stops

$1,618Air New Zealand

Mon, Sep 7 - Sun, Sep 13

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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

Jun 10

BWI7:23 pmBaltimore/Washington

22h 07m

1 stop

MEL7:30 amMelbourne

Jun 17

MEL9:30 amMelbourne

35h 54m

1 stop

BWI7:24 amBaltimore/Washington

$1,342

Air New Zealand

May 18

BWI6:20 pmBaltimore/Washington

23h 55m

1 stop

MEL8:15 amMelbourne

May 30

MEL6:00 pmMelbourne

37h 43m

2 stops

BWI5:43 pmBaltimore/Washington

$1,350

Air New Zealand

May 18

BWI11:00 amBaltimore/Washington

30h 30m

2 stops

MEL7:30 amMelbourne

May 30

MEL6:00 pmMelbourne

37h 43m

2 stops

BWI5:43 pmBaltimore/Washington

$1,355

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

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

Fiji Airways

Aug 22

DCA6:57 pmWashington, D.C. Reagan-National

26h 53m

2 stops

SYD11:50 amSydney Kingsford Smith

Aug 29

SYD1:15 pmSydney Kingsford Smith

23h 44m

2 stops

DCA10:59 pmWashington, D.C. Reagan-National

$1,486

Fiji Airways

Sep 1

DCA6:57 pmWashington, D.C. Reagan-National

26h 53m

2 stops

SYD11:50 amSydney Kingsford Smith

Sep 15

SYD1:15 pmSydney Kingsford Smith

24h 43m

2 stops

DCA11:58 pmWashington, D.C. Reagan-National

$1,501

Fiji Airways

Aug 22

DCA6:57 pmWashington, D.C. Reagan-National

26h 53m

2 stops

SYD11:50 amSydney Kingsford Smith

Aug 29

SYD1:15 pmSydney Kingsford Smith

23h 44m

2 stops

DCA10:59 pmWashington, D.C. Reagan-National

$1,504

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 - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 5/27

11:07 am-11:50 am

3 stops34h 43m

Sydney Kingsford Smith

Wed 6/3

1:20 pm-8:12 am

3 stops32h 52m

$1,058

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 5/27

7:00 am-11:50 am

3 stops38h 50m

Sydney Kingsford Smith

Wed 6/3

1:20 pm-9:58 pm

3 stops46h 38m

$1,112

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 6/22

3:00 pm-5:00 am

1 stop24h 00m

Melbourne

Wed 7/22

1:35 pm-11:43 pm

1 stop24h 08m

$1,266

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Thu 5/21

2:59 pm-6:45 am

2 stops25h 46m

Melbourne

Thu 5/28

9:45 am-8:40 pm

2 stops24h 55m

$1,271

Quickest round-trip

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 6/10

7:23 pm-7:30 am

1 stop22h 07m

Melbourne

Wed 6/17

10:55 am-5:57 pm

1 stop21h 02m

$1,274

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 5/27

3:00 pm-7:30 am

2 stops26h 30m

Melbourne

Wed 6/10

9:30 am-5:43 pm

1 stop22h 13m

$1,277

BaltimoreBrisbane

BWI - BNE

BWIBNE

Baltimore/Washington

Mon 10/26

3:48 pm-6:30 am

1 stop24h 42m

Brisbane

Sun 11/8

9:15 am-2:30 pm

1 stop20h 15m

$1,329

BaltimoreBrisbane

BWI - BNE

BWIBNE

Baltimore/Washington

Sat 10/17

3:48 pm-9:20 am

2 stops27h 32m

Brisbane

Thu 11/12

9:15 am-2:30 pm

1 stop20h 15m

$1,337

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Tue 10/20

1:03 pm-10:55 am

2 stops30h 52m

Melbourne

Wed 11/11

11:30 am-4:13 pm

1 stop20h 43m

$1,599

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Mon 9/7

5:35 pm-7:30 am

1 stop23h 55m

Melbourne

Sun 9/13

3:00 pm-10:36 pm

2 stops45h 36m

$1,618

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 August is, on average, the cheapest month to fly to Australia from Washington, D.C., with most prices found around $78. If you aren’t able to travel during the month of August, then book flights to Australia from Washington, D.C. during September instead. Flights to Australia in September, while not as cheap as those in August, still average around $82.

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 56m
Direct flights	None

The fastest flight from Washington, D.C. to Australia takes 21h 56m

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 8,464 reviews	Search Delta flights
United Airlines	PriceFrom $327	Free Cancellation	Rating 7.4 9,677 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 10,983 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $787	Free Cancellation	Rating 7.5 1,028 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $836	Free Cancellation	Rating 7.1 11,682 reviews	Search American Airlines flights
Qatar Airways	PriceFrom $1,195	Free Cancellation	Rating 7.4 3,724 reviews	Search Qatar Airways flights
Air New Zealand	PriceFrom $1,195	Free Cancellation	Rating 8.0 638 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.