Cheap flights from Sydney to Washington, D.C. Dulles Intl Airport from $816

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — IAD
11 May — 18 May1
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 11 April 2026.

Sat 23/513:15
SYD
-
IAD
3 stops32h 57m
Multiple Airlines
Sat 30/509:12
IAD
-
SYD
3 stops36h 38m
Multiple Airlines
Deal found 7/4$1,540
Sat 9/513:15
SYD
-
IAD
3 stops34h 57m
Multiple Airlines
Sat 16/506:49
IAD
-
SYD
3 stops39h 01m
Multiple Airlines
Deal found 10/4$1,551
Wed 29/413:15
SYD
-
IAD
3 stops36h 20m
Multiple Airlines
Thu 7/507:40
IAD
-
SYD
3 stops38h 10m
Multiple Airlines
Deal found 10/4$1,623
Thu 16/719:40
SYD
-
IAD
1 stop37h 50m
Air China
Mon 20/717:48
IAD
-
SYD
2 stops55h 02m
Air China
Deal found 9/4$1,646
Thu 16/719:40
SYD
-
IAD
1 stop37h 50m
Multiple Airlines
Sun 26/722:20
IAD
-
SYD
2 stops74h 30m
Multiple Airlines
Deal found 8/4$1,654
Thu 21/506:00
SYD
-
IAD
3 stops40h 12m
Multiple Airlines
Thu 28/511:07
IAD
-
SYD
3 stops34h 43m
Multiple Airlines
Deal found 6/4$1,708
Thu 28/513:15
SYD
-
IAD
3 stops32h 57m
Multiple Airlines
Wed 3/609:12
IAD
-
SYD
3 stops36h 38m
Multiple Airlines
Deal found 7/4$1,717
Wed 1/719:40
SYD
-
IAD
2 stops49h 07m
Multiple Airlines
Wed 19/808:25
IAD
-
SYD
2 stops40h 25m
Multiple Airlines
Deal found 8/4$1,752

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 11 April 2026.

Round-trip from

$1,540

One-way from

$816

Popular in

June

Cheapest in

November

Average price

$1,741
23/5-30/5
  • 23/5-30/5
  • 6 total stops
  • 69h 35m total
  • Sydney to Washington, D.C.
15/8
  • 15/8
  • 3 total stops
  • 50h 42m total
  • Sydney to Washington, D.C.
Highest demand for flights based on searches. 13% potential increase in price ($370 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease ($47 potential savings vs. average return price).
Average for round-trip flights in April 2026

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 11 April 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

Sat 9/5

13:15-10:12

3 stops34h 57m

Washington, D.C. Dulles Intl

Sat 16/5

06:49-11:50

3 stops39h 01m

$1,551

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 28/4

20:45-00:09

2 stops41h 24m

Washington, D.C. Dulles Intl

Wed 6/5

19:20-18:50

2 stops33h 30m

$2,221

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Fri 22/5

20:45-17:42

3 stops34h 57m

Washington, D.C. Dulles Intl

Fri 29/5

17:35-18:50

2 stops35h 15m

$2,349

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 14/5

20:45-17:42

3 stops34h 57m

Washington, D.C. Dulles Intl

Fri 29/5

17:35-18:50

2 stops35h 15m

$2,375

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 27/8

11:45-13:55

2 stops40h 10m

Washington, D.C. Dulles Intl

Thu 3/9

12:15-09:25

1 stop31h 10m

$2,401

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 24/5

17:50-11:49

2 stops31h 59m

Washington, D.C. Dulles Intl

Sun 31/5

12:55-07:30

2 stops28h 35m

$2,419

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Fri 8/5

20:45-17:41

3 stops34h 56m

Washington, D.C. Dulles Intl

Fri 15/5

17:35-18:50

2 stops35h 15m

$2,457

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 22/7

10:20-16:25

1 stop20h 05m

Washington, D.C. Dulles Intl

Tue 28/7

22:21-06:55

1 stop42h 34m

$2,589
Fastest return journey

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 16/7

10:20-21:18

1 stop24h 58m

Washington, D.C. Dulles Intl

Sun 26/7

17:48-07:00

1 stop23h 12m

$2,592

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 26/4

20:45-18:10

1 stop35h 25m

Washington, D.C. Dulles Intl

Mon 4/5

21:00-17:30

1 stop30h 30m

$2,624

Flights are sorted by cheapest return flights first.

Deals found on 7/4

Showing 1-10 of 19 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

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 10 April 2026.

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 55 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, January is the cheapest month in which you can book a flight from Sydney to Washington, D.C. Dulles Intl Airport (average of $1,079). Flying from Sydney to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of $1,683). 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?

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 11 April 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.

Food

7.4

Crew

8.5

Entertainment

7.4

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

Food

7.4

Crew

8.5

Entertainment

7.4

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

Food

7.4

Crew

8.5

Entertainment

7.4

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

Food

7.4

Crew

8.5

Entertainment

7.4

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

Food

7.4

Crew

8.5

Entertainment

7.4

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

Food

7.4

Crew

8.5

Entertainment

7.4

Overall

8.0

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

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. 6 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 Qantas Airways. Our recent data shows that you can find tickets from as low as $789 on this airline. Additional options worth looking into are American Airlines and Air Canada, starting at $1,094 and $1,221 round-trip. Qantas Airways is currently priced 54% 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, January is the cheapest month in which you can book a flight from Sydney to Washington, D.C. Dulles Intl Airport (average of $1,079). Flying from Sydney to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of $1,683). 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
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 11 April 2026.

Top 6 airlines flying from Sydney to Dulles Intl

Discover the top 6 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 11 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$789Average$1,847FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,094Average$1,870FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest$1,221Average$1,555FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air New ZealandCheapest$1,391Average$1,584FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapest$1,479Average$1,968FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AustraliaCheapest$1,849Average$3,009FlexibilityNo cancel feeOn-time80%
Search Virgin Australia 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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