Australia

$522+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SYD
Apr 20 — Apr 271
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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 15, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,285
(Gurufare)

One-way from

$522
(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 ($325 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($48 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 15, 2025.

This Justfly.com deal was found by Cheapflights users on 4/14. 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 11/3011:30 amIAD - BNE
1 stop28h 00mQantas Airways
Wed 12/109:45 amBNE - IAD
1 stop21h 21mQantas Airways
Deal found 4/14$905
This American Airlines deal was found by Cheapflights users on 4/15. 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.
Fri 10/312:06 pmIAD - BNE
2 stops24h 54mAmerican Airlines
Sun 11/169:45 amBNE - IAD
1 stop21h 27mAmerican Airlines
Deal found 4/15$941
This Cheapflightsfares deal was found by Cheapflights users on 4/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/15:31 pmIAD - SYD
2 stops27h 14mQantas Airways
Sat 11/157:30 amSYD - IAD
2 stops24h 42mQantas Airways
Deal found 4/14$1,104
This Gurufare deal was found by Cheapflights users on 4/15. 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.
Sat 11/295:16 pmIAD - CBR
2 stops33h 49mQantas Airways
Sat 12/136:05 amCBR - IAD
2 stops26h 01mQantas Airways
Deal found 4/15$1,233
This Gurufare deal was found by Cheapflights users on 4/14. 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 4/14$1,275
This KAYAK deal was found by Cheapflights users on 4/13. 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.
Wed 8/1312:15 pmIAD - SYD
1 stop41h 00mANA
Tue 9/1611:50 amSYD - IAD
1 stop36h 15mANA
Deal found 4/13$1,280
This Gurufare deal was found by Cheapflights users on 4/15. 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.
Sat 7/510:16 pmIAD - SYD
2 stops44h 29mAir New Zealand
Sun 7/279:55 amSYD - IAD
2 stops36h 10mAir New Zealand
Deal found 4/15$1,285
This Fiji Airways deal was found by Cheapflights users on 4/14. 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.
Tue 10/215:31 pmIAD - SYD
2 stops28h 14mMultiple Airlines
Thu 11/132:00 pmSYD - IAD
2 stops24h 18mMultiple Airlines
Deal found 4/14$1,290
This Gurufare deal was found by Cheapflights users on 4/14. 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.
Sat 11/111:30 amIAD - MEL
2 stops32h 50mQantas Airways
Sun 2/16:05 amMEL - IAD
2 stops26h 02mQantas Airways
Deal found 4/14$1,299
This Justfly.com deal was found by Cheapflights users on 4/15. 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 11/45:16 pmIAD - MEL
2 stops32h 04mMultiple Airlines
Thu 11/278:15 pmMEL - IAD
1 stop38h 15mMultiple Airlines
Deal found 4/15$1,348
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/38:29 pmIAD - SYD
2 stops33h 16mAlaska Airlines
Fri 9/199:40 pmSYD - IAD
2 stops32h 19mAlaska Airlines
Deal found 4/14$1,354
This Gurufare deal was found by Cheapflights users on 4/15. 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 9/175:55 pmIAD - MEL
2 stops26h 55mAir New Zealand
Wed 9/248:35 amMEL - IAD
2 stops29h 55mAir New Zealand
Deal found 4/15$1,365

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 15, 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

Sat 7/5

10:16 pm-8:45 am

2 stops44h 29m

Sydney Kingsford Smith

Sun 7/27

9:55 am-8:05 am

2 stops36h 10m

$1,285

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Sat 8/30

10:10 pm-10:50 am

2 stops46h 40m

Melbourne

Mon 9/15

8:35 am-12:30 am

2 stops29h 55m

$1,336

Washington, D.C.Canberra

IAD - CBR

IADCBR

Washington, D.C. Dulles Intl

Thu 9/25

5:36 pm-12:20 pm

2 stops28h 44m

Canberra

Sat 10/11

2:20 pm-10:22 pm

2 stops23h 02m

$1,391

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Sat 5/10

5:38 pm-10:35 am

2 stops26h 57m

Brisbane

Sat 5/31

11:35 am-5:55 am

2 stops32h 20m

$1,398

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Mon 10/6

9:40 pm-8:25 pm

2 stops31h 45m

Melbourne

Wed 10/22

10:20 pm-11:45 am

2 stops52h 25m

$1,403

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Wed 6/4

9:45 am-7:05 am

2 stops31h 20m

Brisbane

Tue 6/10

10:20 am-11:14 am

2 stops38h 54m

$1,410

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Sat 5/3

7:00 am-12:15 pm

2 stops39h 15m

Melbourne

Sat 5/24

12:55 pm-5:55 am

2 stops31h 00m

$1,428

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 4/29

1:30 pm-7:00 pm

2 stops39h 30m

Sydney Kingsford Smith

Tue 5/13

8:55 pm-11:45 am

2 stops52h 50m

$1,430

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Fri 5/9

6:59 pm-7:45 pm

2 stops34h 46m

Sydney Kingsford Smith

Fri 5/16

9:40 pm-6:25 pm

2 stops34h 45m

$1,433

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Mon 8/4

6:44 pm-5:00 am

1 stop44h 16m

Melbourne

Mon 8/25

3:05 pm-10:41 pm

1 stop21h 36m

$1,446

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Australia (average of $1,046). 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 15, 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 15, 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 Singapore Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.8

Overall

8.8

Comfort

8.1

Crew

9.1

Boarding

8.7

Entertainment

7.3

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.

Food

7.8

Overall

8.8

Comfort

8.1

Crew

9.1

Boarding

8.7

Entertainment

7.3

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

Food

7.8

Overall

8.8

Comfort

8.1

Crew

9.1

Boarding

8.7

Entertainment

7.3

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.

Food

7.8

Overall

8.8

Comfort

8.1

Crew

9.1

Boarding

8.7

Entertainment

7.3

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.

Food

7.8

Overall

8.8

Comfort

8.1

Crew

9.1

Boarding

8.7

Entertainment

7.3

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.

Food

7.8

Overall

8.8

Comfort

8.1

Crew

9.1

Boarding

8.7

Entertainment

7.3

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?

    $657 is the cheapest one-way deal found within the past few days, from Air China. You may also be able to find cheap deals on Alaska Airlines and ANA, with prices starting from $772 and $801, 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Australia (average of $1,046). 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$672Average$1,057FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$678Average$1,322FlexibilityNo cancel feeOn-time74%
DeltaCheapest$853Average$973FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$1,036Average$1,337FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,159Average$1,770FlexibilityNo cancel feeOn-time69%
Air New ZealandCheapest$1,375Average$2,017FlexibilityNo cancel feeOn-time78%
ANACheapest$1,493Average$1,847FlexibilityNo cancel feeOn-time80%

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