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$386+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SYD
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$813
(Justfly.com)

One-way from

$386
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$933
Provider with most accurate pricing for Washington, D.C. (WAS)-Sydney Kingsford Smith flight deals.
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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
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Highest demand for flights based on searches. 18% potential increase in price ($296 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($50 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This Justfly.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/255:13 pmIAD - BNE
1 stop22h 02mQantas Airways
Thu 3/69:40 amBNE - IAD
1 stop21h 42mQantas Airways
Deal found 2/19$813
This American Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/151:56 pmIAD - BNE
2 stops25h 04mAmerican Airlines
Sat 8/910:00 pmBNE - IAD
2 stops24h 44mAmerican Airlines
Deal found 2/20$829
This American Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/131:56 pmIAD - SYD
2 stops26h 59mAmerican Airlines
Wed 8/2012:10 pmSYD - IAD
1 stop24h 31mAmerican Airlines
Deal found 2/20$837
This American Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/236:30 amIAD - MEL
2 stops31h 10mAmerican Airlines
Sat 3/16:00 amMEL - IAD
2 stops26h 12mAmerican Airlines
Deal found 2/19$862
This Qantas Airways deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/15:13 pmIAD - MEL
1 stop44h 27mQantas Airways
Tue 3/184:20 pmMEL - IAD
1 stop20h 54mQantas Airways
Deal found 2/18$896
This SmartFares deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/185:35 pmIAD - SYD
1 stop23h 20mQantas Airways
Sun 8/3112:10 pmSYD - IAD
1 stop24h 31mQantas Airways
Deal found 2/18$897
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2010:05 amIAD - SYD
2 stops30h 30mDelta
Tue 11/1111:05 amSYD - IAD
2 stops29h 05mDelta
Deal found 2/19$937
This SmartFares deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/25:27 pmIAD - SYD
1 stop23h 28mMultiple Airlines
Sat 8/164:05 pmSYD - IAD
2 stops44h 36mMultiple Airlines
Deal found 2/19$988
This Justfly.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/165:20 pmIAD - ADL
2 stops28h 25mQantas Airways
Sun 3/236:00 amADL - IAD
2 stops30h 44mQantas Airways
Deal found 2/19$1,043
This American Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/111:47 amIAD - DRW
2 stops35h 18mAmerican Airlines
Fri 10/31:35 amDRW - IAD
2 stops34h 25mAmerican Airlines
Deal found 2/19$1,064
This Justfly.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/265:13 pmIAD - CBR
2 stops58h 37mQantas Airways
Sun 3/910:05 amCBR - IAD
2 stops27h 09mQantas Airways
Deal found 2/20$1,067
This Expedia deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/711:45 amIAD - ADL
2 stops32h 15mMultiple Airlines
Mon 3/175:15 pmADL - IAD
2 stops43h 29mMultiple Airlines
Deal found 2/19$1,140

Find flights from Dulles Intl to Australia within your budget

Customize your flight search to find flights from Dulles Intl to Australia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.

Fly from

Dulles Intl

Fly to

Australia

Route

Depart

Return

Price

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Tue 2/25

5:13 pm-6:15 am

1 stop22h 02m

Brisbane

Thu 3/6

9:40 am-4:22 pm

1 stop21h 42m

$813

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Mon 2/24

9:12 am-5:00 am

2 stops28h 48m

Brisbane

Fri 2/28

10:00 pm-8:42 am

2 stops25h 42m

$830

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 8/13

1:56 pm-6:55 am

2 stops26h 59m

Sydney Kingsford Smith

Wed 8/20

12:10 pm-10:41 pm

1 stop24h 31m

$837

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 3/9

5:20 pm-6:35 am

1 stop22h 15m

Sydney Kingsford Smith

Fri 3/21

11:50 am-10:14 pm

1 stop25h 24m

$906

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 6/22

3:00 pm-6:35 am

2 stops25h 35m

Sydney Kingsford Smith

Mon 7/14

9:25 am-9:10 am

2 stops37h 45m

$937

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Tue 3/18

11:46 am-5:40 am

1 stop26h 54m

Melbourne

Wed 3/26

9:25 pm-4:20 pm

2 stops33h 55m

$965

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sun 3/16

5:20 pm-12:15 pm

2 stops28h 25m

Adelaide

Sun 3/23

6:00 am-10:14 pm

2 stops30h 44m

$1,043

Washington, D.C.Darwin

IAD - DRW

IADDRW

Washington, D.C. Dulles Intl

Sun 6/1

11:47 am-12:35 pm

2 stops35h 18m

Darwin

Fri 10/3

1:35 am-10:30 pm

2 stops34h 25m

$1,064

Washington, D.C.Canberra

IAD - CBR

IADCBR

Washington, D.C. Dulles Intl

Sun 4/6

5:13 pm-10:10 am

2 stops26h 57m

Canberra

Sun 4/13

9:55 am-10:42 pm

2 stops26h 47m

$1,080

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Fri 3/7

11:45 am-11:30 am

2 stops32h 15m

Adelaide

Mon 3/17

5:15 pm-10:14 pm

2 stops43h 29m

$1,140

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 60 results
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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.

Travel insights for flights from Dulles Intl to Australia

Get recent, data-driven insights about flights from Dulles Intl to Australia including ideal travel times, pricing trends, and more.

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Australia (average of $1,051). 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?

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 February 20, 2025.

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

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

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

Get insights into the airlines that provide service to Australia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Australia. Reviews last updated February 20, 2025.
To help decide which airline to fly from Washington, D.C. to Australia, see what other customers have to say about Air Tahiti Nui, ANA and Emirates. 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

Food

7.8

Boarding

8.7

Comfort

8.0

Overall

8.7

Crew

9.1

Entertainment

7.2

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

Food

7.8

Boarding

8.7

Comfort

8.0

Overall

8.7

Crew

9.1

Entertainment

7.2

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.

ANA
8.4
Very good
842 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Food

7.8

Boarding

8.7

Comfort

8.0

Overall

8.7

Crew

9.1

Entertainment

7.2

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.

Emirates
8.1
Very good
3,276 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Food

7.8

Boarding

8.7

Comfort

8.0

Overall

8.7

Crew

9.1

Entertainment

7.2

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.

Singapore Airlines
8.1
Very good
1,301 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Food

7.8

Boarding

8.7

Comfort

8.0

Overall

8.7

Crew

9.1

Entertainment

7.2

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.

Delta
8.0
Very good
8,219 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Food

7.8

Boarding

8.7

Comfort

8.0

Overall

8.7

Crew

9.1

Entertainment

7.2

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.

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.

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

    $386 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 Qantas Airways and Air Canada, with prices starting from $408 and $797, 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Australia (average of $1,051). 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

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Alternative routes for Dulles Intl to Australia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Dulles Intl to Australia

Discover the top 8 airlines that operate flights from Dulles Intl to Australia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$221Average$426FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$672Average$1,066FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$678Average$1,384FlexibilityNo cancel feeOn-time74%
DeltaCheapest$852Average$1,082FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,014Average$1,690FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$1,051Average$1,349FlexibilityNo cancel feeOn-time67%
Air New ZealandCheapest$1,329Average$1,576FlexibilityNo cancel feeOn-time78%
ANACheapest$1,554Average$1,826FlexibilityNo cancel feeOn-time80%
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