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$506+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SYD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This Air Canada deal was found by Cheapflights users on 1/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:55 am
IAD
-
BNE
2 stops31h 10m
Air Canada
Tue 5/510:00 am
BNE
-
IAD
2 stops24h 29m
Air Canada
Deal found 1/27$1,005
This Air Canada deal was found by Cheapflights users on 1/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/39:45 am
IAD
-
BNE
2 stops32h 00m
Air Canada
Thu 3/199:45 am
BNE
-
IAD
2 stops25h 09m
Air Canada
Deal found 1/27$1,042
This Air Canada deal was found by Cheapflights users on 1/28. 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.
Fri 2/209:45 am
IAD
-
BNE
2 stops32h 00m
Air Canada
Wed 3/410:45 am
BNE
-
IAD
2 stops25h 09m
Air Canada
Deal found 1/28$1,043
This Air Canada deal was found by Cheapflights users on 1/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/264:30 pm
IAD
-
BNE
2 stops25h 15m
Air Canada
Sun 3/810:45 am
BNE
-
IAD
2 stops23h 41m
Air Canada
Deal found 1/27$1,052
This Air Canada deal was found by Cheapflights users on 1/28. 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.
Thu 4/210:08 pm
IAD
-
BNE
2 stops42h 57m
Air Canada
Tue 4/1410:00 am
BNE
-
IAD
2 stops24h 37m
Air Canada
Deal found 1/28$1,054
This Air Canada deal was found by Cheapflights users on 1/28. 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.
Fri 2/209:45 am
IAD
-
BNE
2 stops32h 00m
Multiple Airlines
Wed 3/46:10 am
BNE
-
IAD
3 stops30h 11m
Multiple Airlines
Deal found 1/28$1,076
This Air Canada deal was found by Cheapflights users on 1/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/264:30 pm
IAD
-
BNE
2 stops25h 15m
Air Canada
Thu 3/510:45 am
BNE
-
IAD
2 stops25h 09m
Air Canada
Deal found 1/27$1,090
This Air Canada deal was found by Cheapflights users on 1/28. 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.
Sun 11/159:45 am
IAD
-
BNE
2 stops32h 00m
Air Canada
Mon 11/2310:45 am
BNE
-
IAD
2 stops25h 09m
Air Canada
Deal found 1/28$1,106
This Air Canada deal was found by Cheapflights users on 1/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/119:45 am
IAD
-
BNE
2 stops32h 00m
Air Canada
Sat 2/1410:45 am
BNE
-
IAD
2 stops25h 09m
Air Canada
Deal found 1/27$1,112
This Gurufare deal was found by Cheapflights users on 1/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/259:55 am
IAD
-
SYD
2 stops31h 25m
Air New Zealand
Fri 5/19:20 am
SYD
-
IAD
2 stops25h 17m
Air New Zealand
Deal found 1/28$1,157
This Gurufare deal was found by Cheapflights users on 1/27. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:55 am
IAD
-
SYD
1 stop31h 25m
Air New Zealand
Sun 5/179:20 am
SYD
-
IAD
2 stops36h 30m
Air New Zealand
Deal found 1/27$1,158
This Gurufare deal was found by Cheapflights users on 1/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:00 am
IAD
-
SYD
1 stop32h 20m
Multiple Airlines
Fri 5/19:20 am
SYD
-
IAD
2 stops25h 17m
Multiple Airlines
Deal found 1/28$1,162

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,005
(Air Canada)

One-way from

$506
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$1,426
Provider with most accurate pricing for Washington, D.C. (WAS)-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Sydney Kingsford Smith flights.
Search Deals
From Washington, D.C. Dulles Intl to Australia
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Australia
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($165 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 29, 2026.
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.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Fri 2/20

9:45 am-8:45 am

2 stops32h 00m

Brisbane

Wed 3/4

10:45 am-8:54 pm

2 stops25h 09m

$1,043

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Thu 2/26

4:30 pm-8:45 am

2 stops25h 15m

Brisbane

Sun 3/8

10:45 am-7:26 pm

2 stops23h 41m

$1,052

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Fri 2/20

9:45 am-8:45 am

2 stops32h 00m

Brisbane

Wed 3/4

6:10 am-9:21 pm

3 stops30h 11m

$1,076

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Wed 2/11

9:45 am-8:45 am

2 stops32h 00m

Brisbane

Sat 2/14

10:45 am-8:54 pm

2 stops25h 09m

$1,112

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 4/26

9:00 am-7:20 am

1 stop32h 20m

Sydney Kingsford Smith

Fri 5/1

9:20 am-8:37 pm

2 stops25h 17m

$1,162

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Sat 2/21

5:11 pm-8:45 am

2 stops48h 34m

Brisbane

Wed 2/25

10:45 am-9:23 pm

2 stops25h 38m

$1,177

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Wed 3/11

2:03 pm-5:30 am

2 stops25h 27m

Brisbane

Wed 3/18

8:40 am-4:50 pm

1 stop22h 10m

$1,208

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 2/9

4:10 pm-9:30 am

1 stop25h 50m

Adelaide

Mon 2/23

2:55 pm-5:27 am

1 stop30h 02m

$1,215

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Tue 3/10

12:35 pm-6:30 am

1 stop27h 55m

Brisbane

Tue 3/17

10:40 am-4:38 pm

1 stop19h 58m

$1,217

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Wed 3/11

4:00 pm-6:30 am

2 stops24h 30m

Brisbane

Wed 3/18

10:40 am-8:49 pm

1 stop24h 09m

$1,218

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

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, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Australia (average of $329). Flying from Washington, D.C. Dulles Intl Airport to Australia in May is currently the most expensive (average of $835). 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.

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 January 29, 2026.
Get a feel of what it's like to fly with Air New Zealand, Qantas Airways, and United Airlines from Washington, D.C. Dulles Intl Airport to Australia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very good
577 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.4

Food

7.4

Overall

8.0

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Air New Zealand
8.0
Very good
577 reviews
Air New Zealand
8.0
Very good
577 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.4

Food

7.4

Overall

8.0

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Qantas Airways
7.5
Good
981 reviews
Air New Zealand
8.0
Very good
577 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.4

Food

7.4

Overall

8.0

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
United Airlines
7.4
Good
9,215 reviews
Air New Zealand
8.0
Very good
577 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.4

Food

7.4

Overall

8.0

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
American Airlines
7.2
Good
11,206 reviews
Air New Zealand
8.0
Very good
577 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.4

Food

7.4

Overall

8.0

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Air Canada
7.1
Good
10,667 reviews
Air New Zealand
8.0
Very good
577 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.4

Food

7.4

Overall

8.0

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane

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.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Australia?

    Departing from Washington, D.C. Dulles Intl Airport to Australia will take you 25h 50m. The distance from Washington, D.C. Dulles Intl Airport to Australia is about 10437 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    $395 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 United Airlines, with prices starting from $459 and $462, 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 - Sydney Kingsford Smith or Washington, D.C. Dulles Intl - Melbourne Avalon, Washington, D.C. Dulles Intl - Melbourne 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, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Australia (average of $329). Flying from Washington, D.C. Dulles Intl Airport to Australia in May is currently the most expensive (average of $835). 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.
Dulles Intl to Melbourne flights
Dulles Intl to Sydney flights
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Reagan-National to Melbourne flights
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Reagan-National to Sydney flights
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Reagan-National to Auckland flights
Dulles Intl to Avalon flights
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Baltimore to Brisbane flights
Reagan-National to Papeete flights
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Baltimore to Nadi flights
Baltimore to Papeete flights
Baltimore to Avalon flights
Reagan-National to Nadi flights
Reagan-National to Perth flights
Baltimore to Perth flights
Reagan-National to Canberra flights
Dulles Intl to Adelaide flights
Dulles Intl to Canberra flights
Baltimore to Adelaide flights
Dulles Intl to Perth flights
Dulles Intl to I Fadang flights
Baltimore to Canberra flights
Dulles Intl to Tamuning flights
Reagan-National to Adelaide flights
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Dulles Intl to Wellington flights
Baltimore to Christchurch flights
Dulles Intl to Christchurch flights
Reagan-National to Vaitape flights
Reagan-National to Christchurch flights
Baltimore to Tamuning flights
Dulles Intl to Rarotonga flights
Dulles Intl to Coolangatta flights
Baltimore to Hobart flights
Reagan-National to Wellington flights
Reagan-National to Tamuning flights
Dulles Intl to Queenstown flights
Reagan-National to Queenstown flights
Baltimore to Queenstown flights
Baltimore to Rarotonga flights
Reagan-National to Hobart flights

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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$377Average$1,669FlexibilityNo cancel feeOn-time69%
DeltaCheapest$609Average$937FlexibilityNo cancel feeOn-timeN/A
Qantas AirwaysCheapest$803Average$1,420FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$821Average$971FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$839Average$1,352FlexibilityNo cancel feeOn-time67%
Qatar AirwaysCheapest$1,195Average$2,250FlexibilityNo cancel feeOn-time68%
Air New ZealandCheapest$1,257Average$1,783FlexibilityNo cancel feeOn-time78%

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