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Dulles Intl

$618+ Cheap flights from Sydney (SYD) 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — IAD
Jun 16 — Jun 231
Tue 6/16
Tue 6/23
1 adult, Economy
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Cheap flight deals from Sydney to Dulles Intl

Cheapest flights from Sydney to Dulles Intl
Explore the most affordable flight options available from Sydney to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 17, 2026.

This American Airlines deal was found by Cheapflights users on 5/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:10 am
SYD
-
IAD
1 stop33h 50m
American Airlines
Tue 9/226:10 am
IAD
-
SYD
1 stop34h 55m
American Airlines
Deal found 5/16$1,021
This American Airlines deal was found by Cheapflights users on 5/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:50 pm
SYD
-
IAD
1 stop25h 10m
American Airlines
Tue 9/81:23 pm
IAD
-
SYD
2 stops27h 42m
American Airlines
Deal found 5/16$1,029
This American Airlines deal was found by Cheapflights users on 5/15. 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.
Wed 9/99:10 am
SYD
-
IAD
2 stops24h 29m
American Airlines
Sun 9/206:10 am
IAD
-
SYD
1 stop34h 55m
American Airlines
Deal found 5/15$1,031
This American Airlines deal was found by Cheapflights users on 5/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:50 pm
SYD
-
IAD
1 stop25h 10m
American Airlines
Wed 9/96:41 pm
IAD
-
SYD
1 stop22h 14m
American Airlines
Deal found 5/16$1,036

Find flight deals from Sydney to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,021
(American Airlines)

One-way from

$618
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$1,224
Provider with most accurate pricing for Sydney Kingsford Smith-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Washington, D.C. Dulles Intl flights.
Search Deals
From Sydney Kingsford Smith to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Sydney Kingsford Smith to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($131 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($26 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 Sydney 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 17, 2026.
Use the filters below to find and compare flights from Sydney 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

Sat 6/13

3:40 pm-9:45 am

1 stop32h 05m

Washington, D.C. Dulles Intl

Sat 6/20

6:20 am-4:50 pm

2 stops44h 30m

$1,557

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 8/11

8:45 pm-6:45 pm

2 stops36h 00m

Washington, D.C. Dulles Intl

Tue 8/18

6:14 pm-6:50 pm

2 stops34h 36m

$1,564

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 6/7

8:45 pm-7:34 am

2 stops24h 49m

Washington, D.C. Dulles Intl

Wed 7/29

6:14 pm-6:50 pm

2 stops34h 36m

$1,685

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 6/6

8:45 pm-7:34 am

2 stops24h 49m

Washington, D.C. Dulles Intl

Wed 7/29

6:14 pm-6:50 pm

2 stops34h 36m

$1,729

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 9/8

9:55 am-6:00 am

2 stops34h 05m

Washington, D.C. Dulles Intl

Sun 9/20

5:48 pm-8:45 am

2 stops24h 57m

$1,770

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 6/2

8:45 pm-4:38 pm

2 stops33h 53m

Washington, D.C. Dulles Intl

Wed 6/10

6:14 pm-6:50 pm

2 stops34h 36m

$1,776

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 7/16

8:45 pm-6:39 am

2 stops23h 54m

Washington, D.C. Dulles Intl

Sun 7/26

6:14 pm-6:50 pm

2 stops34h 36m

$1,843

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

10:21 pm-6:55 am

1 stop42h 34m

$1,854

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 8/12

9:20 am-9:18 pm

2 stops25h 58m

Washington, D.C. Dulles Intl

Mon 8/17

12:43 pm-7:20 am

1 stop28h 37m

$1,874
Quickest round-trip

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 7/16

10:20 am-12:55 am

1 stop28h 35m

Washington, D.C. Dulles Intl

Sun 7/26

3:15 pm-7:00 am

1 stop25h 45m

$1,888

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/16

Showing 1-10 of 21 resultsSorted by cheapest first
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  • Most accurate provider: When it comes to deals on Sydney-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sydney-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sydney-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sydney-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sydney-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sydney to Dulles Intl

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

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

Booking 54 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sydney to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, November is the cheapest month in which you can book a flight from Sydney to Washington, D.C. Dulles Intl Airport (average of $1,044). Flying from Sydney to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $1,491). 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.

How much does it cost to fly round-trip from Sydney to Washington, D.C. Dulles Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Sydney to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Sydney to Washington, D.C. Dulles Intl?

    Located just 4.6 mi from the city center, Sydney Kingsford Smith is the airport most travelers will use when flying to Washington, D.C. Dulles Intl from Sydney. Booking flights from Kingsford Smith (SYD) to Washington, D.C. Dulles Intl should be relatively easy as there are 0 daily outbound flights to Washington, D.C. Dulles Intl from 0 different airlines.

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

    A quick flight from Sydney to Washington, D.C. Dulles Intl Airport can take about 34h 05m. Air New Zealand provides one of the quickest options available for as low as $1,770. Airlines will cover a distance of 9737 mi.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Sydney to Washington, D.C. Dulles Intl Airport (average of $1,044). Flying from Sydney to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $1,491). 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
Herndon
Rockville
Hyattsville
Manassas
Fredericksburg
Silver Spring
Hanover
Laurel
Woodbridge
Waldorf
Largo
Clinton
Hunt Valley
Cordova
Reston

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