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Cheap flights from Sydney to Washington, D.C. Dulles Intl Airport from $972

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 22/8. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — IAD
18 Jun — 25 Jun1
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 27 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 13 June 2025.

Round-trip from

$1,741

One-way from

$972

Popular in

December

Cheapest in

March

Average price

$2,074
27/7-3/8
  • 27/7-3/8
  • 4 total stops
  • 123h 47m total
  • Sydney to Washington, D.C.
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22/8
  • 22/8
  • 2 total stops
  • 38h 27m total
  • Sydney to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($253 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($64 potential savings vs. average return price).
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Average for round-trip flights in June 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 13 June 2025.

Sun 27/719:40SYD - IAD
2 stops49h 13mMultiple Airlines
Sun 3/822:16IAD - SYD
2 stops74h 34mMultiple Airlines
Deal found 12/6$1,741
Mon 14/709:25SYD - IAD
2 stops22h 59mDelta
Sun 27/713:00IAD - SYD
2 stops27h 35mDelta
Deal found 12/6$1,778
Fri 22/821:40SYD - IAD
2 stops33h 07mAlaska Airlines
Fri 12/917:52IAD - SYD
2 stops35h 53mAlaska Airlines
Deal found 12/6$1,871
Wed 13/808:45SYD - IAD
2 stops27h 33mAir New Zealand
Tue 26/817:55IAD - SYD
2 stops24h 50mAir New Zealand
Deal found 12/6$1,977
Fri 15/809:10SYD - IAD
2 stops23h 50mAmerican Airlines
Mon 25/811:51IAD - SYD
1 stop29h 04mAmerican Airlines
Deal found 11/6$1,996
Wed 10/920:55SYD - IAD
1 stop27h 10mANA
Sun 14/912:15IAD - SYD
1 stop31h 10mANA
Deal found 11/6$2,039
Sun 12/1010:20SYD - IAD
2 stops25h 45mAir Canada
Thu 18/1209:55IAD - SYD
2 stops29h 00mAir Canada
Deal found 10/6$2,068
Fri 1/821:40SYD - IAD
2 stops35h 19mHawaiian Airlines
Thu 14/819:59IAD - SYD
2 stops33h 46mHawaiian Airlines
Deal found 11/6$2,131
Mon 1/1212:10SYD - IAD
1 stop20h 17mUnited Airlines
Mon 12/117:30IAD - SYD
1 stop23h 35mUnited Airlines
Deal found 12/6$2,241
Sun 27/710:20SYD - IAD
1 stop25h 01mLufthansa
Sun 3/822:16IAD - SYD
1 stop42h 44mLufthansa
Deal found 12/6$2,636
Tue 19/810:20SYD - IAD
1 stop20h 05mVirgin Australia
Wed 3/917:20IAD - SYD
1 stop23h 35mVirgin Australia
Deal found 10/6$2,774
Mon 14/711:50SYD - IAD
3 stops38h 00mLATAM Airlines
Thu 17/715:37IAD - SYD
2 stops49h 08mLATAM Airlines
Deal found 11/6$5,110

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 13 June 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

Sun 27/7

19:40-06:53

2 stops49h 13m

Washington, D.C. Dulles Intl

Sun 3/8

22:16-14:50

2 stops74h 34m

$1,741

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mon 14/7

09:25-18:24

2 stops22h 59m

Washington, D.C. Dulles Intl

Sun 27/7

13:00-06:35

2 stops27h 35m

$1,778

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Fri 22/8

21:40-16:47

2 stops33h 07m

Washington, D.C. Dulles Intl

Fri 12/9

17:52-19:45

2 stops35h 53m

$1,871

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 13/8

08:45-22:18

2 stops27h 33m

Washington, D.C. Dulles Intl

Tue 26/8

17:55-08:45

2 stops24h 50m

$1,977

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Fri 15/8

09:10-19:00

2 stops23h 50m

Washington, D.C. Dulles Intl

Mon 25/8

11:51-06:55

1 stop29h 04m

$1,996

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 10/9

20:55-10:05

1 stop27h 10m

Washington, D.C. Dulles Intl

Sun 14/9

12:15-09:25

1 stop31h 10m

$2,039

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 12/10

10:20-21:05

2 stops25h 45m

Washington, D.C. Dulles Intl

Thu 18/12

09:55-06:55

2 stops29h 00m

$2,068

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Fri 1/8

21:40-18:59

2 stops35h 19m

Washington, D.C. Dulles Intl

Thu 14/8

19:59-19:45

2 stops33h 46m

$2,131

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mon 1/12

12:10-16:27

1 stop20h 17m

Washington, D.C. Dulles Intl

Mon 12/1

17:30-09:05

1 stop23h 35m

$2,241

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 27/7

10:20-21:21

1 stop25h 01m

Washington, D.C. Dulles Intl

Sun 3/8

22:16-07:00

1 stop42h 44m

$2,636

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 32 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 9 June 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 27 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 13 June 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 13 June 2025.
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

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
8.7
Very Good
64 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

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
1,091 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

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
882 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

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
8.1
Very Good
3,265 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

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.
Delta
8.0
Very Good
7,950 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

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?

    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 Delta. Our recent data shows that you can find tickets from as low as $1,778 on this airline. Additional options worth looking into are Alaska Airlines and Air New Zealand, starting at $1,871 and $1,977 round-trip. Delta is currently priced 11% 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 $1,039 on Air China. Other airlines that offer cheap prices include American Airlines from $1,242 and United Airlines from $1,423 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 13 June 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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$629Average$1,369FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest$1,304Average$1,847FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,321Average$1,765FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$1,652Average$2,325FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapest$1,752Average$2,167FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AustraliaCheapest$1,896Average$2,320FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
ANACheapest$1,927Average$2,118FlexibilityNo 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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