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Cheap flights from Sydney to Washington, D.C. Dulles Intl Airport from $690

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 23/8. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — IAD
25 Aug — 1 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Dulles Intl

Enter your travel dates to find the best prices.

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 26 July 2026.

Wed 9/913:15
SYD
-
IAD
3 stops35h 12m
Multiple Airlines
Wed 16/911:12
IAD
-
SYD
3 stops45h 13m
Multiple Airlines
Deal found 26/7$1,353
Fri 4/913:15
SYD
-
IAD
3 stops40h 52m
Multiple Airlines
Fri 11/907:00
IAD
-
SYD
3 stops38h 50m
Multiple Airlines
Deal found 21/7$1,390
Sun 1/1116:50
SYD
-
IAD
1 stop32h 15m
Etihad Airways
Sat 14/1114:35
IAD
-
SYD
1 stop47h 55m
Etihad Airways
Deal found 22/7$1,635
Wed 29/713:15
SYD
-
IAD
3 stops37h 32m
Multiple Airlines
Wed 12/811:11
IAD
-
SYD
3 stops34h 39m
Multiple Airlines
Deal found 24/7$1,655
Mon 27/709:30
SYD
-
IAD
2 stops35h 48m
United Airlines
Wed 29/707:00
IAD
-
SYD
1 stop34h 00m
United Airlines
Deal found 24/7$1,675
Sun 30/813:15
SYD
-
IAD
3 stops40h 52m
Multiple Airlines
Wed 9/911:12
IAD
-
SYD
3 stops34h 38m
Multiple Airlines
Deal found 25/7$1,701
Sun 1/1114:00
SYD
-
IAD
3 stops31h 51m
Multiple Airlines
Fri 4/1207:00
IAD
-
SYD
3 stops37h 35m
Multiple Airlines
Deal found 21/7$1,761
Sun 6/913:15
SYD
-
IAD
3 stops30h 25m
Multiple Airlines
Sun 13/907:00
IAD
-
SYD
3 stops49h 25m
Multiple Airlines
Deal found 23/7$1,768
Thu 13/819:40
SYD
-
IAD
1 stop37h 50m
Air China
Fri 21/823:00
IAD
-
SYD
1 stop49h 50m
Air China
Deal found 25/7$1,794
Thu 23/719:40
SYD
-
IAD
1 stop37h 50m
Multiple Airlines
Wed 5/822:20
IAD
-
SYD
2 stops74h 30m
Multiple Airlines
Deal found 21/7$1,819
Thu 10/911:55
SYD
-
IAD
2 stops24h 50m
Air New Zealand
Fri 11/915:15
IAD
-
SYD
2 stops29h 25m
Air New Zealand
Deal found 23/7$1,838

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 26 July 2026.

Round-trip from

$1,390

One-way from

$690

Popular in

July

Cheapest in

November

Average price

$2,733
4/9-11/9
  • 4/9-11/9
  • 6 total stops
  • 79h 42m total
  • Sydney to Washington, D.C.
Search Deals
23/8
  • 23/8
  • 3 total stops
  • 56h 49m total
  • Sydney to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($560 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($119 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 26 July 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

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 9/9

11:55-05:55

2 stops32h 00m

Washington, D.C. Dulles Intl

Tue 22/9

18:00-10:40

2 stops26h 40m

$1,862

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 30/8

09:10-16:07

2 stops44h 57m

Washington, D.C. Dulles Intl

Wed 9/9

11:12-07:05

2 stops29h 53m

$1,911

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 1/11

21:40-16:14

2 stops34h 34m

Washington, D.C. Dulles Intl

Fri 4/12

17:25-19:45

3 stops34h 20m

$2,161

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 9/9

21:05-11:30

2 stops52h 25m

Washington, D.C. Dulles Intl

Tue 22/9

21:40-06:05

3 stops42h 25m

$2,184

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 29/8

20:45-18:14

3 stops35h 29m

Washington, D.C. Dulles Intl

Sun 13/9

17:57-18:50

2 stops34h 53m

$2,227

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 3/9

20:45-18:14

3 stops35h 29m

Washington, D.C. Dulles Intl

Thu 15/10

17:33-18:50

2 stops34h 17m

$2,289

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 1/11

11:20-06:38

1 stop34h 18m

Washington, D.C. Dulles Intl

Fri 4/12

14:06-06:55

2 stops24h 49m

$2,330

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 12/8

09:30-07:14

2 stops35h 44m

Washington, D.C. Dulles Intl

Thu 20/8

08:35-06:55

1 stop32h 20m

$2,350

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 3/9

20:45-18:14

3 stops35h 29m

Washington, D.C. Dulles Intl

Fri 18/9

17:57-18:50

2 stops34h 53m

$2,459

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 30/8

09:55-05:55

2 stops34h 00m

Washington, D.C. Dulles Intl

Wed 9/9

18:00-08:45

2 stops24h 45m

$2,509

Flights are sorted by cheapest return flights first.

Deals found on 23/7

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

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

Currently, November is the cheapest month in which you can book a flight from Sydney to Washington, D.C. Dulles Intl Airport (average of $1,457). Flying from Sydney to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $2,410). 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 for a return flight from Sydney to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment.

Sydney to Washington, D.C. Dulles Intl Airport flights typically cost between $1,772 and $2,504 in September.
The cheapest return price found within the last 5 days was $1,390 on Multiple Airlines (4 Sept–11 Sept).

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 26 July 2026.
Read reviews from past customers who have flown with Air New Zealand,Qantas Airways, andUnited Airlines from Sydney to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very Good
655 reviews
Check prices

Overall

8.0

Food

7.5

Crew

8.5

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Air New Zealand
8.0
Very Good
655 reviews
Air New Zealand
8.0
Very Good
655 reviews
Check prices

Overall

8.0

Food

7.5

Crew

8.5

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Qantas Airways
7.5
Good
1,067 reviews
Air New Zealand
8.0
Very Good
655 reviews
Check prices

Overall

8.0

Food

7.5

Crew

8.5

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
United Airlines
7.4
Good
10,040 reviews
Air New Zealand
8.0
Very Good
655 reviews
Check prices

Overall

8.0

Food

7.5

Crew

8.5

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
American Airlines
7.1
Good
11,844 reviews
Air New Zealand
8.0
Very Good
655 reviews
Check prices

Overall

8.0

Food

7.5

Crew

8.5

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Air Canada
7.1
Good
11,387 reviews
Air New Zealand
8.0
Very Good
655 reviews
Check prices

Overall

8.0

Food

7.5

Crew

8.5

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.

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. 5 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.

  • How long is the flight from Sydney to Washington, D.C. Dulles Intl Airport?

    Departing from Sydney to Washington, D.C. Dulles Intl Airport will take you 32h. The distance from Sydney to Washington, D.C. Dulles Intl Airport is about 15670 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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 Qantas Airways. Our recent data shows that you can find tickets from as low as $799 on this airline. Additional options worth looking into are Air Canada and Air New Zealand, starting at $1,188 and $1,217 round-trip. Qantas Airways is currently priced 56% below the average price you’ll pay for this route.

  • 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, November is the cheapest month in which you can book a flight from Sydney to Washington, D.C. Dulles Intl Airport (average of $1,457). Flying from Sydney to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $2,410). 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

Travelling 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
Laurel
Linthicum Heights

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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 26 July 2026.
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

Top 5 airlines flying from Sydney to Dulles Intl

Discover the top 5 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 26 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$799Average$2,741FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air CanadaCheapest$1,188Average$1,570FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air New ZealandCheapest$1,292Average$1,599FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapest$1,368Average$1,676FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$1,453Average$2,076FlexibilityNo cancel feeOn-time71%
Search American Airlines 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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