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Dulles Intl

$647+ 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — IAD
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2211:30 amMEL - IAD
2 stops28h 19mUnited Airlines
Tue 2/36:15 pmIAD - MEL
1 stop23h 45mUnited Airlines
Deal found 12/15$1,043
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/231:00 pmMEL - IAD
2 stops26h 23mUnited Airlines
Fri 1/910:20 pmIAD - MEL
1 stop43h 40mUnited Airlines
Deal found 12/17$1,091
This United Airlines deal was found by Cheapflights users on 12/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/231:00 pmMEL - IAD
2 stops24h 25mUnited Airlines
Fri 1/304:11 pmIAD - MEL
2 stops25h 19mUnited Airlines
Deal found 12/15$1,094
This Delta deal was found by Cheapflights users on 12/17. 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.
Fri 12/2610:10 amMEL - IAD
2 stops30h 02mDelta
Sat 1/36:59 pmIAD - MEL
2 stops69h 01mDelta
Deal found 12/17$1,098
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/261:00 pmMEL - IAD
2 stops26h 06mUnited Airlines
Fri 1/210:05 pmIAD - MEL
1 stop43h 25mUnited Airlines
Deal found 12/17$1,141
This United Airlines deal was found by Cheapflights users on 12/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:10 pmSYD - IAD
1 stop20h 20mUnited Airlines
Sun 1/1112:40 pmIAD - SYD
2 stops25h 40mUnited Airlines
Deal found 12/15$1,183
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2311:50 amSYD - IAD
1 stop20h 34mUnited Airlines
Tue 1/204:10 pmIAD - SYD
1 stop22h 10mUnited Airlines
Deal found 12/16$1,193
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/272:00 pmSYD - IAD
2 stops23h 15mUnited Airlines
Sat 1/107:45 pmIAD - SYD
1 stop42h 35mUnited Airlines
Deal found 12/17$1,231
This Virgin Australia deal was found by Cheapflights users on 12/15. 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 Virgin Australia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2211:30 amMEL - IAD
1 stop29h 15mVirgin Australia
Tue 2/312:40 pmIAD - MEL
1 stop28h 50mVirgin Australia
Deal found 12/15$1,242
This Delta deal was found by Cheapflights users on 12/17. 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.
Sat 12/2710:40 amSYD - IAD
2 stops23h 21mDelta
Sat 1/107:00 amIAD - SYD
2 stops33h 30mDelta
Deal found 12/17$1,281
This Air China deal was found by Cheapflights users on 12/17. 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.
Fri 12/268:15 pmMEL - IAD
2 stops49h 07mAir China
Tue 12/3010:00 pmIAD - MEL
1 stop49h 40mAir China
Deal found 12/17$1,342
This United Airlines deal was found by Cheapflights users on 12/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:30 amMEL - IAD
1 stop20h 52mUnited Airlines
Wed 1/143:19 pmIAD - MEL
1 stop26h 11mUnited Airlines
Deal found 12/15$1,408

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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$982
(BestPriceTravel)

One-way from

$647
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,702
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. 12% potential increase in price ($172 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 18, 2025.
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

Australia

Fly to

Dulles Intl

Route

Depart

Return

Price

BrisbaneWashington, D.C.

BNE - IAD

BNEIAD

Brisbane

Thu 3/12

8:40 am-4:50 pm

1 stop22h 10m

Washington, D.C. Dulles Intl

Tue 3/24

5:37 pm-5:30 am

1 stop21h 53m

$982

MelbourneWashington, D.C.

MEL - IAD

MELIAD

Melbourne

Wed 2/4

4:05 pm-9:17 pm

1 stop21h 12m

Washington, D.C. Dulles Intl

Wed 2/18

11:22 am-5:00 am

2 stops25h 38m

$1,033

BrisbaneWashington, D.C.

BNE - IAD

BNEIAD

Brisbane

Thu 3/12

7:40 pm-8:48 am

2 stops27h 08m

Washington, D.C. Dulles Intl

Tue 3/24

11:24 am-5:00 am

2 stops27h 36m

$1,034

MelbourneWashington, D.C.

MEL - IAD

MELIAD

Melbourne

Mon 2/2

11:30 am-4:22 pm

1 stop20h 52m

Washington, D.C. Dulles Intl

Wed 2/18

3:58 pm-9:30 am

2 stops25h 32m

$1,044

BrisbaneWashington, D.C.

BNE - IAD

BNEIAD

Brisbane

Tue 1/27

9:40 am-4:31 pm

1 stop21h 51m

Washington, D.C. Dulles Intl

Wed 2/4

5:26 pm-6:30 am

1 stop22h 04m

$1,044

MelbourneWashington, D.C.

MEL - IAD

MELIAD

Melbourne

Thu 2/5

1:00 pm-7:35 pm

1 stop22h 35m

Washington, D.C. Dulles Intl

Mon 2/16

3:45 pm-10:00 am

2 stops26h 15m

$1,044

MelbourneWashington, D.C.

MEL - IAD

MELIAD

Melbourne

Wed 2/4

1:00 pm-7:35 pm

1 stop22h 35m

Washington, D.C. Dulles Intl

Sat 2/21

10:10 pm-10:00 am

1 stop43h 50m

$1,044

MelbourneWashington, D.C.

MEL - IAD

MELIAD

Melbourne

Wed 2/4

11:30 am-8:49 pm

2 stops25h 19m

Washington, D.C. Dulles Intl

Wed 2/18

6:00 pm-9:30 am

1 stop23h 30m

$1,044

MelbourneWashington, D.C.

MEL - IAD

MELIAD

Melbourne

Thu 2/5

1:00 pm-7:35 pm

1 stop22h 35m

Washington, D.C. Dulles Intl

Sun 2/15

3:58 pm-9:30 am

2 stops25h 32m

$1,044

MelbourneWashington, D.C.

MEL - IAD

MELIAD

Melbourne

Thu 2/5

11:30 am-7:21 pm

2 stops23h 51m

Washington, D.C. Dulles Intl

Wed 2/18

6:00 pm-9:30 am

1 stop23h 30m

$1,044

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 60 results
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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

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

Currently, February is the cheapest month in which you can book a flight from Australia to Washington, D.C. Dulles Intl Airport (average of $408). Flying from Australia to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $975). 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 AU to IAD?

Find hourly flight availability from Australia to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

One of the essential ways to save on airfare from Australia to Washington, D.C. Dulles Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 26% on airfare.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated December 18, 2025.
See what other customers who have flown with United Airlines from Australia to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,091 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
United Airlines
7.4
Good
9,091 reviews
United Airlines
7.4
Good
9,091 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

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 52m. Qantas Airways provides one of the quickest options available for as low as $1,044. 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 Sydney Kingsford Smith - Washington, D.C. Dulles Intl or Perth - Washington, D.C. Dulles Intl, Melbourne - 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, February is the cheapest month in which you can book a flight from Australia to Washington, D.C. Dulles Intl Airport (average of $408). Flying from Australia to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $975). 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
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

Browse thousands of different options on Cheapflights for your next trip

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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
Sydney to Reagan-National flights
Melbourne to Baltimore flights
Perth to Dulles Intl flights
Melbourne to Reagan-National flights
Auckland to Dulles Intl flights
Brisbane to Dulles Intl flights
Perth to Baltimore flights
Auckland to Reagan-National flights
Auckland to Baltimore flights
Tamuning to Dulles Intl flights
Brisbane to Reagan-National flights
Tamuning to Baltimore flights
Brisbane to Baltimore flights
Tamuning to Reagan-National flights
Canberra to Dulles Intl flights
Canberra to Baltimore flights
Christchurch to Dulles Intl flights
Coolangatta to Dulles Intl flights
I Fadang to Dulles Intl flights

Top airline flying from Australia to Dulles Intl

Discover the top airline that operate flights from Australia to Dulles Intl. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$885Average$1,660FlexibilityNo cancel feeOn-time69%

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