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

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 23h 47m. 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 57% 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 June 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.

$586 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.

1:53 pm - 6:45 am

BWI

MEL

26h 52m

2 stops

9:45 am - 9:30 pm

MEL

BWI

25h 45m

2 stops

$1,086American Airlines

Sun, Sep 13 - Sat, Sep 26

7:23 pm - 7:30 am

BWI

MEL

22h 07m

1 stop

9:30 am - 4:35 pm

MEL

BWI

21h 05m

1 stop

$1,090Air New Zealand

Wed, Aug 5 - Sun, Aug 16

6:59 pm - 8:15 am

BWI

MEL

23h 16m

1 stop

10:55 am - 5:57 pm

MEL

BWI

21h 02m

1 stop

$1,091United Airlines

Tue, Jun 30 - Tue, Jul 7

7:23 pm - 7:30 am

BWI

MEL

22h 07m

1 stop

9:30 am - 4:35 pm

MEL

BWI

21h 05m

1 stop

$1,092United Airlines

Wed, Aug 5 - Wed, Aug 19

3:03 pm - 7:30 am

BWI

MEL

26h 27m

2 stops

9:30 am - 6:34 pm

MEL

BWI

23h 04m

1 stop

$1,093United Airlines

Fri, Jun 19 - Fri, Jul 3

12:32 pm - 6:50 am

BWI

SYD

28h 18m

2 stops

9:15 am - 6:15 pm

SYD

BWI

23h 00m

2 stops

$1,347Delta

Wed, Jul 1 - Wed, Jul 15

11:00 am - 9:35 am

DCA

SYD

30h 35m

2 stops

11:20 am - 9:00 pm

SYD

DCA

25h 40m

2 stops

$1,476Air Canada

Wed, Nov 4 - Wed, Nov 18

9:55 am - 8:45 am

IAD

BNE

31h 50m

2 stops

10:45 am - 8:23 pm

BNE

IAD

24h 38m

2 stops

$1,476Air Canada

Sun, Nov 1 - Sun, Nov 15

11:57 am - 7:45 am

BWI

PER

31h 48m

2 stops

10:35 pm - 2:30 pm

PER

BWI

28h 55m

2 stops

$1,637Qantas Airways

Tue, Oct 27 - Thu, Nov 19

7:17 pm - 12:25 pm

BWI

PER

53h 08m

2 stops

11:45 pm - 9:34 pm

PER

BWI

33h 49m

2 stops

$1,660Qantas Airways

Tue, Aug 4 - Tue, Aug 11

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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

Jun 15

BWI3:03 pmBaltimore/Washington

26h 27m

2 stops

MEL7:30 amMelbourne

Jul 1

MEL9:30 amMelbourne

27h 15m

2 stops

BWI10:45 pmBaltimore/Washington

$1,085

United Airlines

Jun 30

BWI6:59 pmBaltimore/Washington

23h 16m

1 stop

MEL8:15 amMelbourne

Jul 7

MEL10:55 amMelbourne

21h 02m

1 stop

BWI5:57 pmBaltimore/Washington

$1,091

United Airlines

Aug 5

BWI7:23 pmBaltimore/Washington

22h 07m

1 stop

MEL7:30 amMelbourne

Aug 19

MEL9:30 amMelbourne

21h 05m

1 stop

BWI4:35 pmBaltimore/Washington

$1,092

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 5

BWI7:23 pmBaltimore/Washington

22h 07m

1 stop

MEL7:30 amMelbourne

Aug 16

MEL9:30 amMelbourne

21h 05m

1 stop

BWI4:35 pmBaltimore/Washington

$1,090

Air New Zealand

Aug 5

BWI8:16 amBaltimore/Washington

33h 14m

2 stops

MEL7:30 amMelbourne

Aug 16

MEL9:30 amMelbourne

21h 05m

1 stop

BWI4:35 pmBaltimore/Washington

$1,094

Air New Zealand

Aug 12

BWI1:05 pmBaltimore/Washington

28h 25m

2 stops

MEL7:30 amMelbourne

Aug 19

MEL9:30 amMelbourne

24h 04m

2 stops

BWI7:34 pmBaltimore/Washington

$1,096

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Sun 9/13

1:53 pm-6:45 am

2 stops26h 52m

Melbourne

Sat 9/26

9:45 am-9:30 pm

2 stops25h 45m

$1,086

Quickest round-trip

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 8/5

7:23 pm-7:30 am

1 stop22h 07m

Melbourne

Sun 8/16

9:30 am-4:35 pm

1 stop21h 05m

$1,090

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Tue 6/30

6:59 pm-8:15 am

1 stop23h 16m

Melbourne

Tue 7/7

10:55 am-5:57 pm

1 stop21h 02m

$1,091

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Wed 8/5

7:23 pm-7:30 am

1 stop22h 07m

Melbourne

Wed 8/19

9:30 am-4:35 pm

1 stop21h 05m

$1,092

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Fri 6/19

3:03 pm-7:30 am

2 stops26h 27m

Melbourne

Fri 7/3

9:30 am-6:34 pm

1 stop23h 04m

$1,093

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 7/1

12:32 pm-6:50 am

2 stops28h 18m

Sydney Kingsford Smith

Wed 7/15

9:15 am-6:15 pm

2 stops23h 00m

$1,347

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 11/4

11:00 am-9:35 am

2 stops30h 35m

Sydney Kingsford Smith

Wed 11/18

11:20 am-9:00 pm

2 stops25h 40m

$1,476

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Sun 11/1

9:55 am-8:45 am

2 stops31h 50m

Brisbane

Sun 11/15

10:45 am-8:23 pm

2 stops24h 38m

$1,476

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Tue 10/27

11:57 am-7:45 am

2 stops31h 48m

Perth

Thu 11/19

10:35 pm-2:30 pm

2 stops28h 55m

$1,637

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Tue 8/4

7:17 pm-12:25 pm

2 stops53h 08m

Perth

Tue 8/11

11:45 pm-9:34 pm

2 stops33h 49m

$1,660

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 $1,645 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 $709 on momondo.

Can stopping save me money on Washington, D.C. to Australia flights?

You could potentially save up to 24% 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.

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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 June 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 7.9 8,396 reviews	Search Delta flights
United Airlines	PriceFrom $377	Free Cancellation	Rating 7.4 9,802 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $787	Free Cancellation	Rating 7.5 1,045 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $836	Free Cancellation	Rating 7.1 11,643 reviews	Search American Airlines flights
Air Canada	PriceFrom $839	Free Cancellation	Rating 7.1 11,153 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,195	Free Cancellation	Rating 8.0 645 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $2,062	Free Cancellation	Rating 7.4 3,729 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.