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Dulles Intl

$505+ 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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — IAD
May 4 — May 111
Sun 5/4
Sun 5/11
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 August, booked 20 days in advance, depart on a Tuesday or Monday and return on a Tuesday

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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,259
(American Airlines)

One-way from

$505
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,291
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.
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From Sydney Kingsford Smith to Washington, D.C. Dulles Intl
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One-way flight from Sydney Kingsford Smith to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 8% potential increase in price ($126 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 29, 2025.

This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/99:10 amSYD - IAD
2 stops37h 28mAmerican Airlines
Mon 6/301:08 pmIAD - SYD
2 stops27h 57mAmerican Airlines
Deal found 4/29$1,259
This Air Canada 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1310:20 amSYD - IAD
3 stops39h 56mAir Canada
Wed 10/299:55 amIAD - SYD
2 stops31h 40mAir Canada
Deal found 4/28$1,266
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2011:50 amSYD - IAD
1 stop36h 15mANA
Tue 3/3112:15 pmIAD - SYD
1 stop41h 00mANA
Deal found 4/29$1,298
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/105:45 pmSYD - IAD
1 stop36h 29mMultiple Airlines
Wed 7/25:25 pmIAD - SYD
2 stops55h 15mMultiple Airlines
Deal found 4/28$1,316
This Aunt Betty 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1011:50 amSYD - IAD
2 stops26h 55mAir New Zealand
Mon 6/3012:35 pmIAD - SYD
2 stops30h 10mAir New Zealand
Deal found 4/28$1,350
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/137:55 amSYD - IAD
1 stop41h 20mKorean Air
Thu 8/281:30 pmIAD - SYD
1 stop26h 50mKorean Air
Deal found 4/29$1,355
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/179:40 pmSYD - IAD
2 stops33h 33mAlaska Airlines
Tue 6/248:19 pmIAD - SYD
2 stops33h 26mAlaska Airlines
Deal found 4/27$1,375
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1710:20 amSYD - IAD
1 stop20h 03mUnited Airlines
Tue 6/245:18 pmIAD - SYD
2 stops23h 42mUnited Airlines
Deal found 4/27$1,436
This Jetabroad 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/309:40 pmSYD - IAD
2 stops23h 52mHawaiian Airlines
Wed 11/510:00 amIAD - SYD
2 stops41h 45mHawaiian Airlines
Deal found 4/28$1,439
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/79:25 amSYD - IAD
2 stops26h 51mDelta
Tue 7/1512:45 pmIAD - SYD
2 stops27h 50mDelta
Deal found 4/28$1,445
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 7/107:40 pmSYD - IAD
1 stop37h 50mAir China
Fri 7/1111:00 pmIAD - SYD
1 stop49h 55mAir China
Deal found 4/28$1,461
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1911:00 amSYD - IAD
2 stops42h 40mQatar Airways
Mon 5/269:00 pmIAD - SYD
1 stop30h 10mQatar Airways
Deal found 4/28$1,572

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 April 29, 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

Mon 6/9

9:10 am-8:38 am

2 stops37h 28m

Washington, D.C. Dulles Intl

Mon 6/30

1:08 pm-7:05 am

2 stops27h 57m

$1,259

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 5/20

11:50 am-10:05 am

1 stop36h 15m

Washington, D.C. Dulles Intl

Tue 3/31

12:15 pm-8:15 pm

1 stop41h 00m

$1,298

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 10/11

9:30 pm-4:10 pm

1 stop33h 40m

Washington, D.C. Dulles Intl

Sat 11/1

5:31 pm-7:50 pm

2 stops35h 19m

$1,304

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 6/10

11:50 am-12:45 am

2 stops26h 55m

Washington, D.C. Dulles Intl

Mon 6/30

12:35 pm-8:45 am

2 stops30h 10m

$1,350

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 5/13

7:55 am-11:15 am

1 stop41h 20m

Washington, D.C. Dulles Intl

Thu 8/28

1:30 pm-6:20 am

1 stop26h 50m

$1,355

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Fri 9/26

9:20 am-9:05 pm

2 stops25h 45m

Washington, D.C. Dulles Intl

Sat 10/18

9:45 am-8:20 am

2 stops31h 35m

$1,367

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 6/17

9:40 pm-5:13 pm

2 stops33h 33m

Washington, D.C. Dulles Intl

Tue 6/24

8:19 pm-7:45 pm

2 stops33h 26m

$1,375

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 10/5

9:55 pm-7:45 pm

2 stops36h 50m

Washington, D.C. Dulles Intl

Sun 10/26

2:10 pm-7:45 pm

2 stops38h 35m

$1,406

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 10/8

11:20 am-6:52 pm

1 stop22h 32m

Washington, D.C. Dulles Intl

Sun 11/2

6:55 pm-9:05 am

1 stop22h 10m

$1,436

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 8/30

9:40 pm-7:32 am

2 stops23h 52m

Washington, D.C. Dulles Intl

Wed 11/5

10:00 am-7:45 pm

2 stops41h 45m

$1,439

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 37 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 April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Sydney-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 April 25, 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, August is the cheapest month in which you can book a flight from Sydney to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Sydney to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). 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 SYD to IAD?

Find hourly flight availability from Sydney 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 April 29, 2025.

When flying from Sydney to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 10% versus a flight at noon.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 April 29, 2025.
Air Tahiti Nui
8.8
Very good
62 reviews

Entertainment

7.3

Boarding

8.7

Comfort

8.1

Food

7.8

Crew

9.1

Overall

8.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air Tahiti Nui
8.8
Very good
62 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Entertainment

7.3

Boarding

8.7

Comfort

8.1

Food

7.8

Crew

9.1

Overall

8.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Korean Air
8.4
Very good
1,066 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Entertainment

7.3

Boarding

8.7

Comfort

8.1

Food

7.8

Crew

9.1

Overall

8.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
ANA
8.3
Very good
852 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Entertainment

7.3

Boarding

8.7

Comfort

8.1

Food

7.8

Crew

9.1

Overall

8.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Singapore Airlines
8.1
Very good
1,292 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Entertainment

7.3

Boarding

8.7

Comfort

8.1

Food

7.8

Crew

9.1

Overall

8.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Emirates
8.0
Very good
3,215 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Entertainment

7.3

Boarding

8.7

Comfort

8.1

Food

7.8

Crew

9.1

Overall

8.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

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 2 different airlines.

  • What are the cheapest airlines flying from Sydney to Washington, D.C. Dulles Intl Airport round-trip?

    Flying on American Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $1,259. Additional round-trip tickets that might be worth considering are offered by Air Canada and ANA, with the lowest prices starting at $1,266 and $1,298, respectively. These flights start at 4% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Sydney to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airlines for a one-way flight from Sydney to Washington, D.C. Dulles Intl Airport are Etihad Airways ($646), American Airlines ($740), and Alaska Airlines ($805).

  • 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, August is the cheapest month in which you can book a flight from Sydney to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Sydney to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). 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 Sydney?

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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 2 airlines flying from Sydney to Dulles Intl

Discover the top 2 airlines 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AustraliaCheapest$1,146Average$1,911FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$1,240Average$1,476FlexibilityNo cancel feeOn-time69%

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