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Dulles Intl

$497+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — IAD
Feb 25 — Mrz 41
Mi 2/25
Mi 3/4
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 Januar 26, 2026.

This BYOjet deal was found by Cheapflights users on 1/25. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 3/79:55 am
SYD
-
IAD
2 stops36h 40m
Air New Zealand
Mo 3/93:45 pm
IAD
-
SYD
2 stops27h 45m
Air New Zealand
Deal found 1/25$1,166
This American Airlines deal was found by Cheapflights users on 1/25. 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.
Mo 2/92:05 pm
SYD
-
IAD
1 stop23h 12m
American Airlines
Mi 2/256:00 am
IAD
-
SYD
1 stop32h 55m
American Airlines
Deal found 1/25$1,224
This Delta deal was found by Cheapflights users on 1/26. 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.
Di 2/1010:40 am
SYD
-
IAD
2 stops23h 41m
Delta
Di 2/2412:35 pm
IAD
-
SYD
2 stops26h 15m
Delta
Deal found 1/26$1,227
This BYOjet deal was found by Cheapflights users on 1/24. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 2/1211:45 am
SYD
-
IAD
2 stops26h 31m
Air New Zealand
Fr 2/202:36 pm
IAD
-
SYD
2 stops27h 54m
Air New Zealand
Deal found 1/24$1,255
This BYOjet deal was found by Cheapflights users on 1/24. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 2/1111:45 am
SYD
-
IAD
2 stops25h 04m
Air New Zealand
Sa 2/218:35 am
IAD
-
SYD
2 stops32h 10m
Air New Zealand
Deal found 1/24$1,262
This American Airlines deal was found by Cheapflights users on 1/26. 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.
Di 2/102:05 pm
SYD
-
IAD
1 stop23h 12m
American Airlines
Sa 2/286:00 am
IAD
-
SYD
1 stop32h 55m
American Airlines
Deal found 1/26$1,276
This Delta deal was found by Cheapflights users on 1/26. 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.
Di 2/102:15 pm
SYD
-
IAD
2 stops22h 30m
Delta
Fr 2/273:42 pm
IAD
-
SYD
2 stops24h 48m
Delta
Deal found 1/26$1,279
This Air New Zealand deal was found by Cheapflights users on 1/24. 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 New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 2/1111:45 am
SYD
-
IAD
2 stops25h 34m
Air New Zealand
Do 2/2610:05 pm
IAD
-
SYD
2 stops42h 40m
Air New Zealand
Deal found 1/24$1,308
This BYOjet deal was found by Cheapflights users on 1/25. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 2/1311:45 am
SYD
-
IAD
2 stops28h 11m
Air New Zealand
Sa 2/2112:35 pm
IAD
-
SYD
2 stops29h 55m
Air New Zealand
Deal found 1/25$1,311
This Air China deal was found by Cheapflights users on 1/24. 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.
Do 2/128:40 pm
SYD
-
IAD
1 stop37h 50m
Air China
Fr 2/2010:00 pm
IAD
-
SYD
1 stop46h 00m
Air China
Deal found 1/24$1,323
This American Airlines deal was found by Cheapflights users on 1/25. 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.
Fr 2/132:05 pm
SYD
-
IAD
1 stop24h 48m
American Airlines
Do 2/265:52 pm
IAD
-
SYD
1 stop45h 03m
American Airlines
Deal found 1/25$1,327
This Etihad Airways deal was found by Cheapflights users on 1/26. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 5/153:40 pm
SYD
-
IAD
1 stop32h 05m
Multiple Airlines
So 5/179:19 am
IAD
-
SYD
2 stops41h 31m
Multiple Airlines
Deal found 1/26$1,329

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 Januar 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,166
(BYOjet)

One-way from

$497
(Kiwi.com)

Popular in

May

Cheapest in

March

Average price

$1,180
Provider with most accurate pricing for Sydney Kingsford Smith-Washington, D.C. Dulles Intl flight deals.
Search Deals
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. 10% potential increase in price ($142 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($16 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 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 Januar 26, 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

Sydney

Fly to

Dulles Intl

Route

Depart

Return

Price

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Di 2/10

2:05 pm-9:17 pm

1 stop23h 12m

Washington, D.C. Dulles Intl

Di 2/24

6:00 am-6:55 am

1 stop32h 55m

$1,224

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Di 2/10

12:10 pm-7:21 pm

2 stops23h 11m

Washington, D.C. Dulles Intl

Di 2/24

6:00 pm-9:05 am

1 stop23h 05m

$1,227

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mi 2/11

10:40 am-6:21 pm

2 stops23h 41m

Washington, D.C. Dulles Intl

Mi 2/25

12:35 pm-8:30 am

2 stops27h 55m

$1,227

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Do 2/12

2:00 pm-8:47 pm

2 stops22h 47m

Washington, D.C. Dulles Intl

So 3/1

4:10 pm-6:20 am

1 stop22h 10m

$1,227

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mi 2/11

2:00 pm-7:35 pm

1 stop21h 35m

Washington, D.C. Dulles Intl

Sa 2/28

10:10 pm-6:20 am

1 stop40h 10m

$1,227

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mo 2/9

11:50 am-4:14 pm

1 stop20h 24m

Washington, D.C. Dulles Intl

Mi 2/25

3:58 pm-9:15 am

2 stops25h 17m

$1,227

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mo 2/9

11:20 am-4:22 pm

1 stop21h 02m

Washington, D.C. Dulles Intl

So 3/1

6:05 pm-9:15 am

1 stop23h 10m

$1,227

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mi 2/11

12:10 pm-7:21 pm

2 stops23h 11m

Washington, D.C. Dulles Intl

Mi 2/25

6:05 pm-9:15 am

1 stop23h 10m

$1,227

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Di 2/10

2:00 pm-9:07 pm

2 stops23h 07m

Washington, D.C. Dulles Intl

So 3/1

4:10 pm-6:20 am

1 stop22h 10m

$1,227

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Di 2/10

2:00 pm-7:35 pm

1 stop21h 35m

Washington, D.C. Dulles Intl

Mi 2/25

1:02 pm-6:20 am

2 stops25h 18m

$1,227

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Showing 1-10 of 21 results
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Compare providers for flights from Sydney to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sydney to Dulles Intl in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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?

Use this chart to determine the optimal time to book a round-trip flight from Sydney to Dulles Intl. Price data was last updated on January 23, 2026.

Booking 78 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, April is the cheapest month in which you can book a flight from Sydney to Washington, D.C. Dulles Intl Airport (average of $574). Flying from Sydney to Washington, D.C. Dulles Intl Airport in September is currently the most expensive (average of $1,054). 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 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 Januar 26, 2026.
Peruse reviews from past customers who have flown with United Airlines from Sydney to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,199 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,199 reviews
United Airlines
7.4
Good
9,199 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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 1 airline.

  • 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 23h 11m. American Airlines provides one of the quickest options available for as low as $1,227. Airlines will cover a distance of 9737 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Sydney to Washington, D.C. Dulles Intl Airport round-trip?

    Flying on United Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $885. This flight start at 25% lower than the current average price 3 months from now.

  • 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, April is the cheapest month in which you can book a flight from Sydney to Washington, D.C. Dulles Intl Airport (average of $574). Flying from Sydney to Washington, D.C. Dulles Intl Airport in September is currently the most expensive (average of $1,054). 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
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

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Alternative routes for Sydney to Dulles Intl

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

Top airline flying from Sydney to Dulles Intl

Discover the top airline that operate flights from Sydney 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 Januar 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$885Average$1,501FlexibilityNo cancel feeOn-time69%

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