What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Australia one-way?

$482 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Fiji Airways and Air Canada, with prices starting from $809 and $810, respectively.

What are the most popular routes from Washington, D.C. Dulles Intl Airport to Australia?

While some choose either Washington, D.C. Dulles Intl - Melbourne or Washington, D.C. Dulles Intl - Brisbane, Washington, D.C. Dulles Intl - Sydney Kingsford Smith is the most popular route from Washington, D.C. Dulles Intl Airport to Australia.

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Australia?

American Airlines, Air Canada and Delta are the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to Australia.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Australia?

Users have found that booking a flight from Washington, D.C. Dulles Intl Airport to Australia at least 36 days early can save you up to 10% on average compared to booking a flight this week. If booking 36 days before your flight isn’t an option for you, users have found flights from Washington, D.C. Dulles Intl Airport to Australia for as little as $956 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,266 for flights departing within the next 3 days.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Australia?

Our data shows that February tends to be the cheapest month to fly to Australia from Washington, D.C. Dulles Intl Airport. Users have commonly found prices around $1,272 for the month, but tickets can be as low as $823. Due to multiple factors, prepare for potentially higher prices in December.

Can I find deals for flights from Dulles Intl to Australia that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Australia?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Australia.

Can I find deals for business class flights from Dulles Intl to Australia?

Yes. Cheapflights offers flight deals from Dulles Intl to Australia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$1,316+ Flights from Washington, D.C. Dulles Intl Airport to Australia

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Cheap flight deals from Dulles Intl to Australia

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$924 (American Airlines)
One-way from	$482 (American Airlines)
Popular in	December
Cheapest in	February
Average price	$1,020

Provider with most accurate pricing for Washington, D.C. (WAS)-Sydney Kingsford Smith flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Sydney Kingsford Smith flights.

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From Washington, D.C. Dulles Intl to Australia

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One-way flight from Washington, D.C. Dulles Intl to Australia

Search Deals

Highest demand for flights based on searches. 20% potential increase in price ($317 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($50 potential savings vs. average RT price).

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Average for round-trip flights in March 2025

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Find flight deals from Dulles Intl to Australia

Cheapest flights from Dulles Intl to Australia
Explore the most affordable flight options available from Dulles Intl to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2025.

Mon 4/219:10 amIAD - BNE

2 stops30h 15mAmerican Airlines

Mon 4/288:05 pmBNE - IAD

2 stops26h 33mAmerican Airlines

Deal found 3/27

$924

Tue 5/69:45 amIAD - SYD

2 stops31h 35mAir Canada

Tue 5/209:20 amSYD - IAD

2 stops39h 54mAir Canada

Deal found 3/26

$1,036

Fri 11/1411:30 amIAD - SYD

2 stops32h 15mQantas Airways

Sun 12/77:05 amSYD - IAD

2 stops31h 09mQantas Airways

Deal found 3/26

$1,106

Tue 9/28:25 amIAD - MEL

2 stops37h 10mAir Canada

Tue 9/238:30 pmMEL - IAD

2 stops48h 15mAir Canada

Deal found 3/26

$1,193

Sat 8/95:35 pmIAD - SYD

2 stops28h 10mMultiple Airlines

Sat 8/231:45 pmSYD - IAD

2 stops22h 56mMultiple Airlines

Deal found 3/25

$1,221

Sat 11/85:16 pmIAD - MEL

2 stops26h 04mQantas Airways

Sat 11/227:05 pmMEL - IAD

2 stops43h 13mQantas Airways

Deal found 3/26

$1,226

Sun 11/305:16 pmIAD - BNE

1 stop22h 14mQantas Airways

Wed 12/1010:00 amBNE - IAD

2 stops27h 14mQantas Airways

Deal found 3/26

$1,231

Thu 8/212:25 pmIAD - AVV

3 stops35h 40mMultiple Airlines

Mon 9/88:55 pmAVV - IAD

3 stops38h 10mMultiple Airlines

Deal found 3/26

$1,243

Tue 8/125:35 pmIAD - MEL

2 stops27h 55mMultiple Airlines

Thu 8/281:30 pmMEL - IAD

2 stops23h 11mMultiple Airlines

Deal found 3/26

$1,265

Thu 9/255:36 pmIAD - CBR

2 stops28h 44mMultiple Airlines

Sat 10/112:20 pmCBR - IAD

2 stops23h 02mMultiple Airlines

Deal found 3/26

$1,267

Mon 8/2512:15 pmIAD - SYD

1 stop31h 10mANA

Sun 8/318:55 pmSYD - IAD

1 stop32h 40mANA

Deal found 3/25

$1,300

Tue 6/106:43 pmIAD - BNE

2 stops25h 42mMultiple Airlines

Thu 6/1911:40 amBNE - IAD

2 stops24h 59mMultiple Airlines

Deal found 3/25

$1,301

Best flights from Dulles Intl to Australia
Discover carefully curated flight deals from Dulles Intl to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 27, 2025.

Sat 5/109:11 amIAD - BNE

2 stops30h 14mAmerican Airlines

Sat 5/178:05 pmBNE - IAD

2 stops26h 33mAmerican Airlines

Deal found 3/26

$924

Tue 5/69:45 amIAD - SYD

2 stops31h 35mAir Canada

Tue 5/209:20 amSYD - IAD

2 stops39h 54mAir Canada

Deal found 3/26

$1,036

Sat 8/95:35 pmIAD - SYD

2 stops28h 10mMultiple Airlines

Sat 8/231:45 pmSYD - IAD

2 stops22h 56mMultiple Airlines

Deal found 3/25

$1,221

Mon 8/2512:15 pmIAD - SYD

1 stop31h 10mANA

Sun 8/318:55 pmSYD - IAD

1 stop32h 40mANA

Deal found 3/25

$1,300

Wed 8/67:59 pmIAD - SYD

2 stops33h 46mAlaska Airlines

Fri 8/159:40 pmSYD - IAD

2 stops32h 45mAlaska Airlines

Deal found 3/26

$1,415

Tue 7/2911:49 amIAD - MEL

1 stop27h 11mQantas Airways

Sun 8/173:05 pmMEL - IAD

1 stop21h 36mQantas Airways

Deal found 3/25

$1,436

Wed 4/231:30 pmIAD - SYD

2 stops39h 30mTurkish Airlines

Tue 5/68:55 pmSYD - IAD

2 stops52h 50mTurkish Airlines

Deal found 3/25

$1,441

Sun 6/88:45 amIAD - MEL

1 stop33h 30mUnited Airlines

Mon 6/1610:55 amMEL - IAD

1 stop21h 57mUnited Airlines

Deal found 3/25

$1,539

Thu 6/198:10 amIAD - BNE

2 stops36h 25mFiji Airways

Sat 7/511:35 amBNE - IAD

2 stops33h 15mFiji Airways

Deal found 3/26

$1,539

Sun 6/810:15 amIAD - SYD

2 stops30h 20mDelta

Tue 7/19:25 amSYD - IAD

2 stops27h 50mDelta

Deal found 3/25

$1,570

Sat 6/710:09 pmIAD - MEL

2 stops46h 41mAir New Zealand

Mon 6/168:35 amMEL - IAD

2 stops34h 33mAir New Zealand

Deal found 3/25

$1,603

Thu 5/15:38 pmIAD - PER

2 stops50h 07mCathay Pacific

Mon 5/1912:10 amPER - IAD

2 stops41h 45mCathay Pacific

Deal found 3/26

$1,633

Last-minute flights from Dulles Intl to Australia
Discover last-minute flight deals from Dulles Intl to Australia. Data last updated March 27, 2025 and is based on user searches.

Thu 3/2710:25 pmIAD - SYD

2 stops53h 40mTurkish Airlines

Thu 4/39:55 pmSYD - IAD

2 stops52h 50mTurkish Airlines

Deal found 3/26

$1,384

Mon 3/319:40 pmIAD - MEL

2 stops31h 45mTurkish Airlines

Sat 4/129:20 pmMEL - IAD

2 stops52h 25mTurkish Airlines

Deal found 3/26

$1,400

Tue 4/15:20 pmIAD - SYD

2 stops37h 50mMultiple Airlines

Tue 4/86:15 amSYD - IAD

2 stops30h 27mMultiple Airlines

Deal found 3/26

$1,243

Tue 4/13:30 pmIAD - AVV

3 stops33h 35mMultiple Airlines

Sat 6/78:55 pmAVV - IAD

3 stops38h 32mMultiple Airlines

Deal found 3/25

$1,518

Tue 4/17:00 amIAD - SYD

2 stops38h 45mFiji Airways

Tue 4/291:15 pmSYD - IAD

2 stops42h 07mFiji Airways

Deal found 3/25

$1,561

Tue 4/13:30 pmIAD - SYD

2 stops37h 45mANA

Tue 4/2911:50 amSYD - IAD

1 stop36h 15mANA

Deal found 3/25

$1,595

Tue 4/17:00 amIAD - MEL

2 stops38h 55mMultiple Airlines

Sun 4/611:35 pmMEL - IAD

2 stops55h 47mMultiple Airlines

Deal found 3/26

$1,597

Wed 4/25:20 pmIAD - SYD

1 stop22h 35mQantas Airways

Wed 5/712:00 pmSYD - IAD

2 stops24h 57mQantas Airways

Deal found 3/26

$1,828

Wed 4/28:15 amIAD - SYD

1 stop32h 40mUnited Airlines

Wed 5/710:20 amSYD - IAD

1 stop23h 15mUnited Airlines

Deal found 3/26

$1,856

Wed 4/25:44 pmIAD - SYD

3 stops47h 36mAir Canada

Wed 5/79:20 amSYD - IAD

2 stops39h 54mAir Canada

Deal found 3/26

$1,893

Thu 4/38:30 amIAD - SYD

2 stops58h 15mAir New Zealand

Tue 4/1510:20 amSYD - IAD

1 stop20h 10mAir New Zealand

Deal found 3/26

$1,976

Sat 4/59:00 pmIAD - PER

2 stops40h 10mMalaysia Airlines

Tue 4/223:50 pmPER - IAD

2 stops35h 50mMalaysia Airlines

Deal found 3/26

$1,971

One-way flights from Dulles Intl to Australia
Search for one-way flight options from Dulles Intl to Australia. Find affordable one-way fares based on user searches. Data last updated March 27, 2025.

Mon 5/51:59 pmIAD - BNE

2 stops25h 26mAmerican Airlines

Deal found 3/26

$482

Thu 6/511:09 amIAD - SYD

2 stops45h 01mMultiple Airlines

Deal found 3/24

$501

Sun 4/1310:05 pmIAD - MEL

3 stops41h 25mMultiple Airlines

Deal found 3/25

$610

Tue 4/111:00 amIAD - BNE

3 stops52h 50mMultiple Airlines

Deal found 3/26

$714

Sat 5/105:38 pmIAD - MEL

2 stops28h 37mFiji Airways

Deal found 3/26

$809

Tue 6/109:45 amIAD - SYD

2 stops31h 35mAir Canada

Deal found 3/24

$810

Wed 4/3011:00 amIAD - MEL

1 stop40h 55mAir India

Deal found 3/26

$817

Fri 5/95:38 pmIAD - SYD

2 stops28h 07mFiji Airways

Deal found 3/25

$824

Tue 6/106:43 pmIAD - SYD

1 stop22h 12mQantas Airways

Deal found 3/24

$843

Wed 4/307:00 amIAD - AVV

3 stops49h 50mMultiple Airlines

Deal found 3/26

$884

Sun 5/45:38 pmIAD - MEL

2 stops38h 37mCathay Pacific

Deal found 3/25

$886

Mon 3/317:31 amIAD - BNE

2 stops37h 34mCathay Pacific

Deal found 3/26

$896

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Mon 4/21

9:10 am-5:25 am

2 stops30h 15m

Brisbane

Mon 4/28

8:05 pm-8:38 am

2 stops26h 33m

$924

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 5/6

9:45 am-7:20 am

2 stops31h 35m

Sydney Kingsford Smith

Tue 5/20

9:20 am-11:14 am

2 stops39h 54m

$1,036

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sat 8/9

5:35 pm-11:45 am

2 stops28h 10m

Sydney Kingsford Smith

Sat 8/23

1:45 pm-10:41 pm

2 stops22h 56m

$1,221

Washington, D.C.Melbourne

IAD - AVV

IADAVV

Washington, D.C. Dulles Intl

Thu 8/21

2:25 pm-4:05 pm

3 stops35h 40m

Melbourne Avalon

Mon 9/8

8:55 pm-9:05 pm

3 stops38h 10m

$1,243

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 8/25

12:15 pm-9:25 am

1 stop31h 10m

Sydney Kingsford Smith

Sun 8/31

8:55 pm-3:35 pm

1 stop32h 40m

$1,300

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Tue 6/10

6:43 pm-10:25 am

2 stops25h 42m

Brisbane

Thu 6/19

11:40 am-10:39 pm

2 stops24h 59m

$1,301

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Wed 5/28

8:19 am-7:05 am

1 stop32h 46m

Brisbane

Mon 6/2

10:00 am-9:08 pm

2 stops25h 08m

$1,303

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Mon 3/31

9:40 pm-8:25 pm

2 stops31h 45m

Melbourne

Sat 4/12

9:20 pm-11:45 am

2 stops52h 25m

$1,400

Washington, D.C.Cairns

IAD - CNS

IADCNS

Washington, D.C. Dulles Intl

Tue 8/19

2:25 pm-3:55 pm

3 stops35h 30m

Cairns

Tue 8/26

4:35 pm-6:45 am

2 stops52h 10m

$1,402

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 8/6

7:59 pm-7:45 pm

2 stops33h 46m

Sydney Kingsford Smith

Fri 8/15

9:40 pm-4:25 pm

2 stops32h 45m

$1,415

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 60 results

...

Best time to book a flight from Dulles Intl to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Dulles Intl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Australia

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Australia?

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Australia (average of $1,044). Flying from Washington, D.C. Dulles Intl Airport to Australia in December is currently the most expensive (average of $1,643). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to AU?

When flying from Washington, D.C. Dulles Intl Airport to Australia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Australia by month

In terms of precipitation, rainfall in Australia ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Australia when rainfall is around 2.0 in.

Temperature in Australia by month

If weather is an important factor for your trip to Australia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Australia

To help decide which airline to fly from Washington, D.C. to Australia, see what other customers have to say about Air Tahiti Nui, Korean Air and ANA. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air Tahiti Nui

8.7

Very good

61 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Air Tahiti Nui

8.7

Very good

61 reviews

Air Tahiti Nui

8.7

Very good

61 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Korean Air

8.4

Very good

1,050 reviews

Air Tahiti Nui

8.7

Very good

61 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

ANA

8.3

Very good

828 reviews

Air Tahiti Nui

8.7

Very good

61 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Asiana Airlines

8.2

Very good

441 reviews

Air Tahiti Nui

8.7

Very good

61 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Singapore Airlines

8.1

Very good

1,284 reviews

Air Tahiti Nui

8.7

Very good

61 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Related info for your journey

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Australia one-way?
$482 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Fiji Airways and Air Canada, with prices starting from $809 and $810, respectively.
What are the most popular routes from Washington, D.C. Dulles Intl Airport to Australia?
While some choose either Washington, D.C. Dulles Intl - Melbourne or Washington, D.C. Dulles Intl - Brisbane, Washington, D.C. Dulles Intl - Sydney Kingsford Smith is the most popular route from Washington, D.C. Dulles Intl Airport to Australia.
Can I find deals for flights from Dulles Intl to Australia that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Australia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Australia.
Can I find deals for business class flights from Dulles Intl to Australia?
Yes. Cheapflights offers flight deals from Dulles Intl to Australia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Australia?
Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Australia (average of $1,044). Flying from Washington, D.C. Dulles Intl Airport to Australia in December is currently the most expensive (average of $1,643). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Australia

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Reagan-National to Cairns flights

Complete your trip

Australia car rentals

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Melbourne Airport car rentals

Brisbane Airport car rentals

Top 7 airlines flying from Dulles Intl to Australia

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$672	Average$1,058	FlexibilityNo cancel fee	On-time71%
Qantas Airways	Cheapest$678	Average$1,316	FlexibilityNo cancel fee	On-time74%
Delta	Cheapest$853	Average$984	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$1,036	Average$1,345	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$1,159	Average$1,770	FlexibilityNo cancel fee	On-time69%
Air New Zealand	Cheapest$1,329	Average$1,862	FlexibilityNo cancel fee	On-time78%
ANA	Cheapest$1,493	Average$1,847	FlexibilityNo cancel fee	On-time80%

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$482+ Cheap flights from Dulles Intl (IAD) to Australia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Australia with Cheapflights

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Cheap flight deals from Dulles Intl to Australia

Keep the following information in mind while searching for Dulles Intl to Australia flight deals. Data was last updated March 27, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Dulles Intl to Australia

Cheapest flights from Dulles Intl to AustraliaExplore the most affordable flight options available from Dulles Intl to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2025.

Explore the most affordable flight options available from Dulles Intl to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Australia that are best for you.

Best time to book a flight from Dulles Intl to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Dulles Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Australia

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Australia?

What is the cheapest time of day to fly from IAD to AU?

Find hourly flight availability from Dulles Intl to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 27, 2025.

Rainfall in Australia by month

Plan your trip to Australia by taking into account the average rainfall totals by month.

Temperature in Australia by month

Plan your trip to Australia by taking into account the average temperature totals by month.

Reviews of airlines servicing Australia

To help decide which airline to fly from Washington, D.C. to Australia, see what other customers have to say about Air Tahiti Nui, Korean Air and ANA. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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Cheapest flights from Dulles Intl to Australia
Explore the most affordable flight options available from Dulles Intl to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2025.