HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$698+ Cheap flights from Australia to Dulles Intl (IAD)

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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — IAD
May 31 — Jun 71
Sun 5/31
Sun 6/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Australia to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Australia to Dulles Intl

Cheapest flights from Australia to Dulles Intl
Explore the most affordable flight options available from Australia to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2026.

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.
Wed 6/31:20 pm
SYD
-
IAD
3 stops32h 52m
Multiple Airlines
Wed 6/109:55 am
IAD
-
SYD
3 stops46h 15m
Multiple Airlines
Deal found 4/29$1,045
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.
Fri 5/296:00 am
SYD
-
IAD
3 stops50h 32m
Multiple Airlines
Fri 6/59:12 am
IAD
-
SYD
3 stops36h 38m
Multiple Airlines
Deal found 4/29$1,094
This Air China deal was found by Cheapflights users on 4/30. 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 China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/37:40 pm
MEL
-
IAD
1 stop37h 50m
Air China
Tue 8/2511:00 pm
IAD
-
MEL
1 stop49h 55m
Air China
Deal found 4/30$1,188
This TravelUp deal was found by Cheapflights users on 4/30. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/88:40 pm
SYD
-
IAD
2 stops50h 55m
Multiple Airlines
Tue 12/810:00 pm
IAD
-
SYD
1 stop49h 30m
Multiple Airlines
Deal found 4/30$1,217
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:00 am
SYD
-
IAD
3 stops42h 12m
Multiple Airlines
Sun 5/249:12 am
IAD
-
SYD
3 stops46h 58m
Multiple Airlines
Deal found 4/27$1,240
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 5/96:00 am
SYD
-
IAD
3 stops43h 41m
Multiple Airlines
Wed 5/207:40 am
IAD
-
SYD
3 stops48h 30m
Multiple Airlines
Deal found 4/29$1,267
This Trip.com deal was found by Cheapflights users on 4/30. 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.
Tue 5/56:00 am
SYD
-
IAD
3 stops42h 12m
Multiple Airlines
Tue 5/197:40 am
IAD
-
SYD
3 stops38h 10m
Multiple Airlines
Deal found 4/30$1,274
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/135:50 pm
SYD
-
IAD
2 stops31h 51m
Multiple Airlines
Tue 5/269:12 am
IAD
-
SYD
2 stops32h 18m
Multiple Airlines
Deal found 4/28$1,276
This Air China 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 China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/167:40 pm
SYD
-
IAD
1 stop37h 50m
Multiple Airlines
Sun 7/2610:20 pm
IAD
-
SYD
2 stops74h 30m
Multiple Airlines
Deal found 4/28$1,287
This Air China deal was found by Cheapflights users on 4/30. 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 China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/37:40 pm
MEL
-
IAD
1 stop37h 50m
Air China
Thu 8/205:35 pm
IAD
-
MEL
2 stops55h 20m
Air China
Deal found 4/30$1,295
This Air China 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 Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/257:40 pm
SYD
-
IAD
1 stop37h 50m
Multiple Airlines
Sat 7/1110:20 pm
IAD
-
SYD
2 stops50h 30m
Multiple Airlines
Deal found 4/27$1,372
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/111:30 pm
MEL
-
IAD
3 stops32h 55m
Multiple Airlines
Fri 6/269:55 am
IAD
-
MEL
3 stops46h 40m
Multiple Airlines
Deal found 4/28$1,417

Find flight deals from Australia to Dulles Intl

Keep the following information in mind while searching for Australia to Dulles Intl flight deals. Data was last updated May 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,045
(Trip.com)

One-way from

$698
(Kiwi.com)

Popular in

April

Cheapest in

September

Average price

$1,339
Provider with most accurate pricing for Sydney Kingsford Smith-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Washington, D.C. (WAS) flights.
Search Deals
From Australia to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Australia to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($142 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Australia to Dulles Intl 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 May 1, 2026.
Use the filters below to find and compare flights from Australia to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 7/16

7:40 pm-7:30 pm

1 stop37h 50m

Washington, D.C. Dulles Intl

Sun 7/26

10:20 pm-2:50 pm

2 stops74h 30m

$1,287

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 5/16

8:45 pm-11:59 pm

2 stops41h 14m

Washington, D.C. Dulles Intl

Sun 5/24

5:35 pm-6:50 pm

2 stops35h 15m

$1,679

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Fri 8/7

8:45 pm-6:57 pm

2 stops36h 12m

Washington, D.C. Dulles Intl

Fri 8/28

5:44 pm-6:50 pm

2 stops35h 06m

$1,703

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 5/21

8:45 pm-11:59 pm

2 stops41h 14m

Washington, D.C. Dulles Intl

Tue 5/26

5:35 pm-6:50 pm

3 stops35h 15m

$1,733

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 7/16

8:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Sun 7/26

12:15 pm-7:10 pm

1 stop40h 55m

$1,744

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Fri 6/12

8:45 pm-6:39 am

2 stops23h 54m

Washington, D.C. Dulles Intl

Fri 6/19

6:14 pm-6:50 pm

2 stops34h 36m

$1,840

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 6/17

10:20 am-4:25 pm

1 stop20h 05m

Washington, D.C. Dulles Intl

Tue 6/23

10:21 pm-6:55 am

1 stop42h 34m

$1,855

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 7/22

10:20 am-4:25 pm

1 stop20h 05m

Washington, D.C. Dulles Intl

Tue 7/28

8:18 pm-7:00 am

1 stop44h 42m

$1,857

MelbourneWashington, D.C.

MEL - IAD

MELIAD

Melbourne

Wed 9/2

9:30 am-4:20 pm

1 stop20h 50m

Washington, D.C. Dulles Intl

Tue 9/8

10:23 pm-7:30 am

2 stops43h 07m

$1,859

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 6/24

9:15 am-10:20 am

2 stops39h 05m

Washington, D.C. Dulles Intl

Sat 7/11

6:00 am-6:50 am

2 stops34h 50m

$1,904

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Australia to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Australia 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 Australia to Washington, D.C. Dulles Intl Airport

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

The price you pay for your flight from Australia to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 49 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, October is the cheapest month in which you can book a flight from Australia to Washington, D.C. Dulles Intl Airport (average of $257). Flying from Australia to Washington, D.C. Dulles Intl Airport in May is currently the most expensive (average of $983). 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.

Related info for your journey

Find useful and relevant information for your journey from Australia to Dulles Intl. 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 Australia to Washington, D.C. Dulles Intl Airport?

    A quick flight from Australia to Washington, D.C. Dulles Intl Airport can take about 20h 50m. ANA provides one of the quickest options available for as low as $1,859. Airlines will cover a distance of 10156 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Australia to Dulles Intl 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 Australia to Washington, D.C. Dulles Intl Airport?

    Currently, October is the cheapest month in which you can book a flight from Australia to Washington, D.C. Dulles Intl Airport (average of $257). Flying from Australia to Washington, D.C. Dulles Intl Airport in May is currently the most expensive (average of $983). 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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Tysons
Owings Mills
Springfield
Arlington
Silver Spring
Herndon
Rockville
Hyattsville
Manassas
Fredericksburg
Woodbridge
Hanover
Laurel
Largo
Upper Marlboro
Waldorf
Clinton
Hunt Valley
Cordova

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Australia to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Melbourne to Dulles Intl flights
Sydney to Dulles Intl flights
Sydney to Baltimore flights
Auckland to Baltimore flights
Tamuning to Reagan-National flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights