Australia

$525+ 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SYD
May 4 — May 111
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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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,263
(StudentUniverse)

One-way from

$525
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$931
Provider with most accurate pricing for Washington, D.C. (WAS)-Sydney Kingsford Smith flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Sydney Kingsford Smith flights.
From Washington, D.C. Dulles Intl to Australia
One-way flight from Washington, D.C. Dulles Intl to Australia
Highest demand for flights based on searches. 20% potential increase in price ($319 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($49 potential savings vs. average RT price).
Average for round-trip flights in April 2025

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 April 29, 2025.

This Ovago deal was found by Cheapflights users on 4/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/3011:30 amIAD - BNE
1 stop28h 00mQantas Airways
Wed 12/109:45 amBNE - IAD
1 stop27h 29mQantas Airways
Deal found 4/28$897
This StudentUniverse deal was found by Cheapflights users on 4/27. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/75:22 pmIAD - SYD
2 stops25h 28mQantas Airways
Tue 12/166:05 amSYD - IAD
2 stops26h 01mQantas Airways
Deal found 4/27$1,173
This StudentUniverse deal was found by Cheapflights users on 4/28. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/245:55 pmIAD - SYD
2 stops26h 40mAir New Zealand
Wed 9/311:50 amSYD - IAD
2 stops33h 01mAir New Zealand
Deal found 4/28$1,218
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/299:00 amIAD - SYD
2 stops39h 40mMultiple Airlines
Thu 6/55:45 pmSYD - IAD
1 stop36h 29mMultiple Airlines
Deal found 4/29$1,281
This KAYAK deal was found by Cheapflights users on 4/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2012:15 pmIAD - SYD
1 stop31h 10mANA
Tue 11/412:25 pmSYD - IAD
1 stop43h 15mANA
Deal found 4/28$1,283
This StudentUniverse deal was found by Cheapflights users on 4/28. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/212:36 pmIAD - MEL
2 stops39h 09mAir New Zealand
Tue 7/2212:05 pmMEL - IAD
2 stops25h 53mAir New Zealand
Deal found 4/28$1,309
This Gurufare deal was found by Cheapflights users on 4/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/55:16 pmIAD - PER
2 stops38h 49mQantas Airways
Mon 12/2910:55 pmPER - IAD
2 stops36h 19mQantas Airways
Deal found 4/29$1,328
This Trip.com deal was found by Cheapflights users on 4/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/49:00 pmIAD - PER
2 stops31h 15mMultiple Airlines
Sat 10/115:20 pmPER - IAD
2 stops58h 20mMultiple Airlines
Deal found 4/29$1,370
This Fiji Airways deal was found by Cheapflights users on 4/28. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/255:36 pmIAD - CBR
2 stops28h 44mMultiple Airlines
Sat 10/112:20 pmCBR - IAD
2 stops23h 02mMultiple Airlines
Deal found 4/28$1,393
This Air Canada deal was found by Cheapflights users on 4/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/29:55 amIAD - SYD
2 stops31h 40mAir Canada
Mon 2/211:20 amSYD - IAD
2 stops39h 56mAir Canada
Deal found 4/28$1,414
This StudentUniverse deal was found by Cheapflights users on 4/27. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/295:53 pmIAD - BNE
2 stops27h 07mAir New Zealand
Wed 8/2712:15 pmBNE - IAD
2 stops26h 15mAir New Zealand
Deal found 4/27$1,421
This Fiji Airways deal was found by Cheapflights users on 4/28. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/225:16 pmIAD - MEL
2 stops27h 29mMultiple Airlines
Sat 12/62:15 pmMEL - IAD
2 stops23h 59mMultiple Airlines
Deal found 4/28$1,423

Cheapflights Fare Finder

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 April 29, 2025.
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

Dulles Intl

Fly to

Australia

Route

Depart

Return

Price

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 7/28

5:53 pm-8:45 am

2 stops24h 52m

Sydney Kingsford Smith

Sun 8/24

11:50 am-10:15 pm

2 stops24h 25m

$1,218

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Thu 5/29

9:00 am-2:40 pm

2 stops39h 40m

Sydney Kingsford Smith

Thu 6/5

5:45 pm-4:14 pm

1 stop36h 29m

$1,281

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Wed 7/2

12:36 pm-5:45 pm

2 stops39h 09m

Melbourne

Tue 7/22

12:05 pm-11:58 pm

2 stops25h 53m

$1,309

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 7/27

12:15 pm-7:15 pm

1 stop41h 00m

Sydney Kingsford Smith

Sun 8/10

11:50 am-3:45 pm

1 stop41h 55m

$1,336

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Sat 10/4

9:00 pm-4:15 pm

2 stops31h 15m

Perth

Sat 10/11

5:20 pm-3:40 pm

2 stops58h 20m

$1,370

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 7/8

8:19 pm-7:45 pm

2 stops33h 26m

Sydney Kingsford Smith

Tue 8/5

9:40 pm-4:25 pm

2 stops32h 45m

$1,431

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 5/6

9:40 pm-7:00 pm

2 stops31h 20m

Sydney Kingsford Smith

Tue 5/20

8:55 pm-11:45 am

2 stops52h 50m

$1,433

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Mon 6/23

6:46 pm-5:00 am

1 stop44h 14m

Melbourne

Wed 7/16

3:05 pm-10:46 pm

1 stop21h 41m

$1,443

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Tue 7/1

8:10 am-10:25 am

2 stops36h 15m

Brisbane

Sat 7/12

11:35 am-6:50 am

2 stops33h 15m

$1,449

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Thu 5/8

9:40 pm-7:25 pm

2 stops31h 45m

Melbourne

Wed 5/28

9:20 pm-7:45 pm

2 stops36h 25m

$1,476

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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.

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 $1,043). 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 April 29, 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 April 29, 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, Korean Air and ANA. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.3

Boarding

8.7

Food

7.8

Crew

9.1

Overall

8.8

Comfort

8.1

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.

Entertainment

7.3

Boarding

8.7

Food

7.8

Crew

9.1

Overall

8.8

Comfort

8.1

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.

Entertainment

7.3

Boarding

8.7

Food

7.8

Crew

9.1

Overall

8.8

Comfort

8.1

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.
8.3
Very good

Entertainment

7.3

Boarding

8.7

Food

7.8

Crew

9.1

Overall

8.8

Comfort

8.1

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.

Entertainment

7.3

Boarding

8.7

Food

7.8

Crew

9.1

Overall

8.8

Comfort

8.1

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.

Entertainment

7.3

Boarding

8.7

Food

7.8

Crew

9.1

Overall

8.8

Comfort

8.1

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?

    $750 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on ANA and American Airlines, with prices starting from $782 and $883, respectively.

  • What are the most popular routes 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 $1,043). 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.

Top 7 airlines flying from Dulles Intl to Australia

Discover the top 7 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$672Average$1,058FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$678Average$1,315FlexibilityNo cancel feeOn-time74%
DeltaCheapest$853Average$973FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$1,036Average$1,337FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,159Average$1,762FlexibilityNo cancel feeOn-time69%
Air New ZealandCheapest$1,375Average$2,028FlexibilityNo cancel feeOn-time78%
ANACheapest$1,392Average$1,712FlexibilityNo cancel feeOn-time80%

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