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

United Airlines, Delta, and Alaska Airlines 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 22h 45m on average. Another popular route from Washington, D.C. to Australia is flying from Washington, D.C. to Sydney, which will take roughly 23h 35m. 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 55% 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 6 as of July 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.

$577 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.

11:10 am - 11:50 am

IAD

SYD

34h 40m

3 stops

1:15 pm - 8:04 am

SYD

IAD

32h 49m

3 stops

$1,118Multiple Airlines

Mon, Aug 17 - Mon, Aug 24

11:10 am - 10:35 am

IAD

BNE

33h 25m

3 stops

11:35 am - 5:14 pm

BNE

IAD

43h 39m

3 stops

$1,125Multiple Airlines

Fri, Aug 14 - Tue, Aug 25

3:55 pm - 6:55 am

BWI

SYD

25h 00m

1 stop

12:00 pm - 9:34 pm

SYD

BWI

23h 34m

1 stop

$1,126Qantas Airways

Wed, Aug 5 - Wed, Aug 12

3:55 pm - 6:55 am

BWI

SYD

25h 00m

1 stop

12:00 pm - 11:41 pm

SYD

BWI

25h 41m

1 stop

$1,127Qantas Airways

Mon, Aug 17 - Mon, Aug 24

7:00 am - 7:00 am

BWI

SYD

34h 00m

1 stop

9:30 am - 7:14 am

SYD

BWI

35h 44m

1 stop

$1,179United Airlines

Mon, Jul 27 - Mon, Aug 10

3:55 pm - 5:00 am

BWI

MEL

23h 05m

1 stop

1:35 pm - 11:41 pm

MEL

BWI

24h 06m

1 stop

$1,179American Airlines

Mon, Aug 17 - Mon, Aug 24

3:03 pm - 7:00 am

BWI

SYD

25h 57m

2 stops

10:20 am - 11:45 am

SYD

BWI

39h 25m

2 stops

$1,180United Airlines

Mon, Aug 3 - Mon, Aug 17

3:55 pm - 5:00 am

BWI

MEL

23h 05m

1 stop

1:35 pm - 11:41 pm

MEL

BWI

24h 06m

1 stop

$1,182American Airlines

Mon, Aug 10 - Mon, Aug 24

9:40 am - 7:05 am

DCA

BNE

31h 25m

2 stops

10:00 am - 9:48 pm

BNE

DCA

25h 48m

2 stops

$1,474Air Canada

Mon, Aug 10 - Mon, Aug 17

3:45 pm - 7:05 am

IAD

BNE

25h 20m

2 stops

10:00 am - 7:00 pm

BNE

IAD

23h 00m

2 stops

$1,474Air Canada

Mon, Sep 21 - Sun, Oct 4

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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

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

Qantas Airways

Aug 5

BWI3:55 pmBaltimore/Washington

25h 00m

1 stop

SYD6:55 amSydney Kingsford Smith

Aug 12

SYD12:00 pmSydney Kingsford Smith

23h 34m

1 stop

BWI9:34 pmBaltimore/Washington

$1,126

Qantas Airways

Aug 17

BWI3:55 pmBaltimore/Washington

25h 00m

1 stop

SYD6:55 amSydney Kingsford Smith

Aug 24

SYD12:00 pmSydney Kingsford Smith

25h 41m

1 stop

BWI11:41 pmBaltimore/Washington

$1,127

Qantas Airways

Oct 19

BWI11:55 amBaltimore/Washington

26h 05m

1 stop

MEL5:00 amMelbourne

Nov 1

MEL12:00 pmMelbourne

22h 17m

1 stop

BWI7:17 pmBaltimore/Washington

$1,131

Delta flights from Washington, D.C. to Australia

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

Delta

Aug 2

BWI11:52 amBaltimore/Washington

28h 58m

2 stops

SYD6:50 amSydney Kingsford Smith

Aug 17

SYD9:15 amSydney Kingsford Smith

28h 03m

2 stops

BWI11:18 pmBaltimore/Washington

$1,191

Delta

Oct 13

BWI7:40 pmBaltimore/Washington

46h 10m

2 stops

MEL8:50 amMelbourne

Oct 25

MEL11:00 amMelbourne

26h 37m

2 stops

BWI10:37 pmBaltimore/Washington

$1,211

Delta

Jul 30

BWI10:33 amBaltimore/Washington

30h 17m

2 stops

SYD6:50 amSydney Kingsford Smith

Aug 12

SYD9:15 amSydney Kingsford Smith

26h 13m

2 stops

BWI9:28 pmBaltimore/Washington

$1,241

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 8/17

11:10 am-11:50 am

3 stops34h 40m

Sydney Kingsford Smith

Mon 8/24

1:15 pm-8:04 am

3 stops32h 49m

$1,118

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Fri 8/14

11:10 am-10:35 am

3 stops33h 25m

Brisbane

Tue 8/25

11:35 am-5:14 pm

3 stops43h 39m

$1,125

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 8/5

3:55 pm-6:55 am

1 stop25h 00m

Sydney Kingsford Smith

Wed 8/12

12:00 pm-9:34 pm

1 stop23h 34m

$1,126

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/17

3:55 pm-6:55 am

1 stop25h 00m

Sydney Kingsford Smith

Mon 8/24

12:00 pm-11:41 pm

1 stop25h 41m

$1,127

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 7/27

7:00 am-7:00 am

1 stop34h 00m

Sydney Kingsford Smith

Mon 8/10

9:30 am-7:14 am

1 stop35h 44m

$1,179

Quickest round-trip

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 8/17

3:55 pm-5:00 am

1 stop23h 05m

Melbourne

Mon 8/24

1:35 pm-11:41 pm

1 stop24h 06m

$1,179

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/3

3:03 pm-7:00 am

2 stops25h 57m

Sydney Kingsford Smith

Mon 8/17

10:20 am-11:45 am

2 stops39h 25m

$1,180

BaltimoreMelbourne

BWI - MEL

BWIMEL

Baltimore/Washington

Mon 8/10

3:55 pm-5:00 am

1 stop23h 05m

Melbourne

Mon 8/24

1:35 pm-11:41 pm

1 stop24h 06m

$1,182

Washington, D.C.Brisbane

DCA - BNE

DCABNE

Washington, D.C. Reagan-National

Mon 8/10

9:40 am-7:05 am

2 stops31h 25m

Brisbane

Mon 8/17

10:00 am-9:48 pm

2 stops25h 48m

$1,474

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Mon 9/21

3:45 pm-7:05 am

2 stops25h 20m

Brisbane

Sun 10/4

10:00 am-7:00 pm

2 stops23h 00m

$1,474

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 $1,618 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 $1,045 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 July 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 8,450 reviews	Search Delta flights
United Airlines	PriceFrom $357	Free Cancellation	Rating 7.4 9,945 reviews	Search United Airlines flights
Air Canada	PriceFrom $787	Free Cancellation	Rating 7.1 11,314 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $787	Free Cancellation	Rating 7.5 1,057 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $836	Free Cancellation	Rating 7.1 11,783 reviews	Search American Airlines flights
Air New Zealand	PriceFrom $1,285	Free Cancellation	Rating 8.0 649 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $2,062	Free Cancellation	Rating 7.3 3,743 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.