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Dulles Intl

$663+ 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — IAD
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from Sydney Kingsford Smith to Washington, D.C. Dulles Intl are usually found in March or September, booked 20 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Find 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 octubre 28, 2025.

This BYOjet deal was found by Cheapflights users on 10/28. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/1611:45 amSYD - IAD
2 stops33h 42mAir New Zealand
lun. 11/246:48 amIAD - SYD
2 stops35h 42mAir New Zealand
Deal found 10/28$1,056
This Air China deal was found by Cheapflights users on 10/27. 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.
mar. 11/118:40 pmSYD - IAD
2 stops38h 46mMultiple Airlines
dom. 11/1610:08 pmIAD - SYD
2 stops73h 22mMultiple Airlines
Deal found 10/27$1,067
This BestPriceTravel deal was found by Cheapflights users on 10/27. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/511:45 amSYD - IAD
2 stops25h 06mAir New Zealand
mié. 11/1212:55 pmIAD - SYD
2 stops29h 35mAir New Zealand
Deal found 10/27$1,075
This BYOjet deal was found by Cheapflights users on 10/27. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/151:55 pmSYD - IAD
2 stops31h 32mAir New Zealand
dom. 11/236:00 amIAD - SYD
2 stops44h 05mAir New Zealand
Deal found 10/27$1,104
This BestPriceTravel deal was found by Cheapflights users on 10/27. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/2411:20 amSYD - IAD
2 stops40h 19mAir Canada
lun. 12/19:45 amIAD - SYD
2 stops31h 50mAir Canada
Deal found 10/27$1,286
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/119:40 pmSYD - IAD
2 stops24h 26mAlaska Airlines
mié. 12/246:29 pmIAD - SYD
2 stops57h 16mAlaska Airlines
Deal found 10/27$1,314
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/69:40 pmSYD - IAD
2 stops48h 26mAlaska Airlines
mié. 12/246:29 pmIAD - SYD
2 stops57h 16mAlaska Airlines
Deal found 10/27$1,333
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/59:40 pmSYD - IAD
2 stops59h 50mAlaska Airlines
mié. 12/246:29 pmIAD - SYD
2 stops57h 16mAlaska Airlines
Deal found 10/27$1,343
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/149:40 pmSYD - IAD
2 stops35h 00mAlaska Airlines
sáb. 11/226:08 pmIAD - SYD
2 stops57h 37mAlaska Airlines
Deal found 10/26$1,344
This BYOjet deal was found by Cheapflights users on 10/27. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/511:20 amSYD - IAD
2 stops26h 00mAir Canada
mié. 11/129:45 amIAD - SYD
3 stops31h 50mAir Canada
Deal found 10/27$1,349
This Air China deal was found by Cheapflights users on 10/25. 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 Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/88:40 pmSYD - IAD
1 stop37h 50mAir China
mar. 12/2310:00 pmIAD - SYD
1 stop49h 30mAir China
Deal found 10/25$1,357

Cheap 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 octubre 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,056
(BYOjet)

One-way from

$663
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,162
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. 13% potential increase in price ($204 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 octubre 28, 2025.
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

dom. 11/16

11:45 am-5:27 am

2 stops33h 42m

Washington, D.C. Dulles Intl

lun. 11/24

6:48 am-10:30 am

2 stops35h 42m

$1,056

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

mar. 12/9

9:40 pm-5:30 pm

2 stops59h 50m

Washington, D.C. Dulles Intl

mié. 12/24

6:29 pm-7:45 pm

2 stops57h 16m

$1,343

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

mié. 12/10

11:20 am-11:08 pm

2 stops27h 48m

Washington, D.C. Dulles Intl

mar. 12/23

6:05 am-9:00 am

2 stops58h 55m

$1,373

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

sáb. 11/15

11:20 am-8:54 pm

3 stops49h 34m

Washington, D.C. Dulles Intl

dom. 11/23

9:45 am-9:35 am

2 stops55h 50m

$1,405

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

lun. 12/8

11:20 am-11:08 pm

2 stops27h 48m

Washington, D.C. Dulles Intl

mié. 12/24

6:05 am-9:00 am

2 stops58h 55m

$1,405

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

vie. 11/14

11:20 am-4:27 pm

2 stops45h 07m

Washington, D.C. Dulles Intl

dom. 11/30

10:11 pm-9:35 am

2 stops43h 24m

$1,407

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

lun. 2/16

12:25 pm-9:23 pm

2 stops48h 58m

Washington, D.C. Dulles Intl

lun. 4/6

12:15 pm-7:15 pm

1 stop41h 00m

$1,420

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

sáb. 2/21

9:15 pm-11:45 am

2 stops54h 30m

Washington, D.C. Dulles Intl

lun. 3/2

1:30 pm-7:20 pm

2 stops37h 50m

$1,441

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

vie. 2/20

11:20 am-9:23 pm

2 stops50h 03m

Washington, D.C. Dulles Intl

mar. 2/24

9:45 am-9:35 am

2 stops31h 50m

$1,452

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

mié. 12/10

8:40 pm-2:50 pm

2 stops58h 10m

Washington, D.C. Dulles Intl

mar. 12/23

10:00 pm-3:30 pm

1 stop49h 30m

$1,462

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 22 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 October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Sydney-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 October 24, 2025.

Booking 20 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 $410). Flying from Sydney to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $1,173). 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?

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 octubre 28, 2025.
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
9,001 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,001 reviews
United Airlines
7.4
Good
9,001 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 27h 48m. Air New Zealand provides one of the quickest options available for as low as $1,373. 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 31% 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 $410). Flying from Sydney to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $1,173). 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
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Owings Mills
Linthicum Heights
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf
Bowie

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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 Reagan-National flights
Sydney to Baltimore 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 octubre 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$885Average$1,476FlexibilityNo cancel feeOn-time69%

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