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Cheap flights from Sydney to Washington, D.C. Dulles Intl Airport from $788

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — IAD
5 May — 12 May1
1 adult

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 Friday or Tuesday 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 30 April 2025.

Round-trip from

$1,966

One-way from

$788

Popular in

December

Cheapest in

March

Average price

$2,016
American Airlines
  • American Airlines
  • 9/6-30/6
  • 4 total stops
  • 65h 25m total
  • Sydney to Washington, D.C.
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5/6
  • 5/6
  • 2 total stops
  • 51h 35m total
  • Sydney to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($306 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($66 potential savings vs. average return price).
Search Deals
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 30 April 2025.

Mon 9/609:10SYD - IAD
2 stops37h 28mAmerican Airlines
Mon 30/613:08IAD - SYD
2 stops27h 57mAmerican Airlines
Deal found 29/4$1,966
Tue 20/511:50SYD - IAD
1 stop36h 15mANA
Tue 31/312:15IAD - SYD
1 stop41h 00mANA
Deal found 29/4$2,027
Sat 11/1021:30SYD - IAD
1 stop33h 40mMultiple Airlines
Sat 1/1117:31IAD - SYD
2 stops35h 19mMultiple Airlines
Deal found 29/4$2,036
Wed 16/709:55SYD - IAD
2 stops26h 23mAir New Zealand
Mon 28/717:53IAD - SYD
2 stops24h 52mAir New Zealand
Deal found 29/4$2,091
Tue 13/507:55SYD - IAD
1 stop41h 20mKorean Air
Thu 28/813:30IAD - SYD
1 stop26h 50mKorean Air
Deal found 29/4$2,116
Mon 6/1010:20SYD - IAD
2 stops25h 40mAir Canada
Tue 21/1008:18IAD - SYD
2 stops33h 02mAir Canada
Deal found 29/4$2,141
Sun 5/1021:55SYD - IAD
2 stops36h 50mTurkish Airlines
Sun 26/1014:10IAD - SYD
2 stops38h 35mTurkish Airlines
Deal found 29/4$2,195
Thu 17/721:40SYD - IAD
2 stops33h 33mAlaska Airlines
Thu 31/720:19IAD - SYD
2 stops33h 26mAlaska Airlines
Deal found 29/4$2,226
Wed 8/1011:20SYD - IAD
1 stop22h 32mUnited Airlines
Sun 2/1118:55IAD - SYD
1 stop22h 10mUnited Airlines
Deal found 29/4$2,242
Sat 30/821:40SYD - IAD
2 stops23h 52mHawaiian Airlines
Wed 5/1110:00IAD - SYD
2 stops41h 45mHawaiian Airlines
Deal found 28/4$2,247
Wed 8/1010:25SYD - IAD
2 stops23h 17mDelta
Sat 18/1019:50IAD - SYD
2 stops44h 45mDelta
Deal found 29/4$2,258
Sun 5/1021:45SYD - IAD
1 stop32h 55mJetBlue
Sun 19/1021:00IAD - SYD
1 stop30h 10mJetBlue
Deal found 29/4$2,297

Cheapflights Fare Finder

Customise 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 647,157 searches. Data last updated 30 April 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 9/6

09:10-08:38

2 stops37h 28m

Washington, D.C. Dulles Intl

Mon 30/6

13:08-07:05

2 stops27h 57m

$1,966

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 20/5

11:50-10:05

1 stop36h 15m

Washington, D.C. Dulles Intl

Tue 31/3

12:15-20:15

1 stop41h 00m

$2,027

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 11/10

21:30-16:10

1 stop33h 40m

Washington, D.C. Dulles Intl

Sat 1/11

17:31-19:50

2 stops35h 19m

$2,036

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 16/7

09:55-22:18

2 stops26h 23m

Washington, D.C. Dulles Intl

Mon 28/7

17:53-08:45

2 stops24h 52m

$2,091

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 13/5

07:55-11:15

1 stop41h 20m

Washington, D.C. Dulles Intl

Thu 28/8

13:30-06:20

1 stop26h 50m

$2,116

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mon 6/10

10:20-21:00

2 stops25h 40m

Washington, D.C. Dulles Intl

Tue 21/10

08:18-08:20

2 stops33h 02m

$2,141

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 5/10

21:55-19:45

2 stops36h 50m

Washington, D.C. Dulles Intl

Sun 26/10

14:10-19:45

2 stops38h 35m

$2,195

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 17/7

21:40-17:13

2 stops33h 33m

Washington, D.C. Dulles Intl

Thu 31/7

20:19-19:45

2 stops33h 26m

$2,226

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 8/10

11:20-18:52

1 stop22h 32m

Washington, D.C. Dulles Intl

Sun 2/11

18:55-09:05

1 stop22h 10m

$2,242

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 30/8

21:40-07:32

2 stops23h 52m

Washington, D.C. Dulles Intl

Wed 5/11

10:00-19:45

2 stops41h 45m

$2,247

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 35 results
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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 return 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 return flight from Sydney to Dulles Intl. Price data was last updated on 25 April 2025.

To ensure you get the cheapest price possible for a flight from Sydney to Washington, D.C. Dulles Intl Airport, you should look to book at least 20 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from Sydney to Washington, D.C. Dulles Intl Airport (average of $1,013). Flying from Sydney to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $1,608). 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 30 April 2025.

It’s typically best to fly out from Sydney to Washington, D.C. Dulles Intl Airport in the morning. Doing so could potentially save you 10% on the flight price compared to flying at midday, which is usually more expensive.

What is the cheapest day to fly from Sydney to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly return from Sydney to Dulles Intl. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Sydney to Washington, D.C. Dulles Intl Airport flight should consider departing on Wednesday at midday when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 30 April 2025.
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Boarding

8.7

Entertainment

7.3

Overall

8.8

Food

7.8

Comfort

8.1

Crew

9.1

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
Check prices

Boarding

8.7

Entertainment

7.3

Overall

8.8

Food

7.8

Comfort

8.1

Crew

9.1

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
1,068 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Boarding

8.7

Entertainment

7.3

Overall

8.8

Food

7.8

Comfort

8.1

Crew

9.1

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
Check prices

Boarding

8.7

Entertainment

7.3

Overall

8.8

Food

7.8

Comfort

8.1

Crew

9.1

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.
Fiji Airways
8.1
Very Good
190 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Boarding

8.7

Entertainment

7.3

Overall

8.8

Food

7.8

Comfort

8.1

Crew

9.1

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
Check prices

Boarding

8.7

Entertainment

7.3

Overall

8.8

Food

7.8

Comfort

8.1

Crew

9.1

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?

    Sydney Kingsford Smith (SYD), located 7.5 km from the city centre, is the airport you fly out of when you book flights from Sydney to Washington, D.C. Dulles Intl. 7 airlines have flights from Kingsford Smith to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Sydney Kingsford Smith to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.

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

    Our cheapest airline available from Sydney to Washington, D.C. Dulles Intl Airport is American Airlines. Our recent data shows that you can find tickets from as low as $1,966 on this airline. Additional options worth looking into are ANA and Air New Zealand, starting at $2,027 and $2,091 round-trip. American Airlines is currently priced 4% below the average price you’ll pay for this route.

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

    One-way options have recently been found by users for as low as $1,155 on American Airlines. Other airlines that offer cheap prices include Air China from $1,230 and Alaska Airlines from $1,257 one-way.

  • 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 holiday 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, February is the cheapest month in which you can book a flight from Sydney to Washington, D.C. Dulles Intl Airport (average of $1,013). Flying from Sydney to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $1,608). 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

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Fly from Sydney to Dulles Intl on these airlines

Choose from the following airlines for your flight from Sydney to Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on 30 April 2025.
United Airlines flights from Sydney Kingsford Smith to Washington, D.C. Dulles Intl
Air Canada flights from Sydney Kingsford Smith to Washington, D.C. Dulles Intl
ANA flights from Sydney Kingsford Smith to Washington, D.C. Dulles Intl

Top 7 airlines flying from Sydney to Dulles Intl

Discover the top 7 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 647,157 searches. Data last updated 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$640Average$1,645FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest$1,324Average$1,883FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,343Average$1,852FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$1,707Average$2,421FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapest$1,837Average$2,206FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AustraliaCheapest$1,928Average$2,358FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
ANACheapest$1,960Average$2,158FlexibilityNo cancel feeOn-time80%
Search ANA flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sydney to Dulles Intl?

Cheapflights makes it easy to find Sydney to Dulles Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Dulles Intl?

Cheapflights helps you find that perfect flight to Dulles Intl from Sydney by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Sydney to Dulles Intl with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Sydney to Dulles Intl flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Sydney to Dulles Intl become cheaper?

Not ready to book yet? You can track prices for flights from Sydney to Dulles Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

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