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Cheap flights from Washington, D.C. Dulles Intl Airport to Sydney from $890

IAD — SYD
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dulles Intl to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl to Sydney

Mon 9/1106:00 -
2 stops34h 35m
Mon 16/1119:25 -
2 stops43h 19m
Deal found 4/11$1,912
Sat 21/1117:54 -
2 stops59h 56m
Tue 18/511:55 -
2 stops26h 55m
Deal found 3/11$1,928
Fri 6/1106:00 -
2 stops34h 35m
Fri 13/1114:05 -
2 stops26h 35m
Deal found 4/11$2,022
Sun 6/1220:02 -
2 stops44h 33m
Fri 11/1211:50 -
2 stops25h 15m
Deal found 2/11$2,044
Tue 1/1206:00 -
2 stops34h 35m
Thu 10/1219:25 -
2 stops41h 40m
Deal found 1/11$2,050
Sun 15/1106:00 -
2 stops34h 35m
Sat 21/1111:50 -
2 stops33h 29m
Deal found 4/11$2,090
Fri 13/1106:39 -
2 stops33h 56m
Fri 20/1111:50 -
2 stops28h 47m
Deal found 4/11$2,094
Thu 5/1112:50 -
2 stops27h 45m
Thu 12/1111:55 -
2 stops26h 02m
Deal found 3/11$2,095

Find flight deals from Dulles Intl to Sydney

Round-trip from

$1,876

One-way from

$890

Popular in

December

Cheapest in

August

Average price

$1,875
Air New Zealand
  • Air New Zealand
  • 8/3-22/3
  • 4 total stops
  • 63h 24m total
  • Washington, D.C. to Sydney
Search Deals
2/3-31/12
  • 2/3-31/12
  • 3 total stops
  • 45h 38m total
  • Washington, D.C. to Sydney
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($100 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($83 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Sydney that are best for you.

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Price

Cheapest return flight
Fastest return journey

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Tue 4/5

11:00-06:25

3 stops29h 25m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,061

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Sat 20/2

07:00-06:25

2 stops31h 25m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,103

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Wed 11/11

12:31-06:25

2 stops49h 54m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,125

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Wed 10/3

07:00-06:25

2 stops31h 25m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,125

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Fri 13/11

23:35-20:25

3 stops52h 50m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,126

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Thu 3/12

07:00-06:25

2 stops31h 25m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,131

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Tue 16/2

07:00-06:25

3 stops31h 25m

Sydney Kingsford Smith

Fri 26/2

11:15-05:31

2 stops34h 16m

$2,198

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Mon 18/1

21:20-19:25

2 stops54h 05m

Sydney Kingsford Smith

Thu 18/2

21:35-11:45

2 stops54h 10m

$2,208

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Tue 1/12

13:30-19:25

2 stops37h 55m

Sydney Kingsford Smith

Thu 31/12

21:35-19:25

2 stops37h 50m

$2,289

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Tue 2/3

17:38-06:25

2 stops44h 47m

Sydney Kingsford Smith

Tue 9/3

11:15-05:31

3 stops34h 16m

$2,369

Flights are sorted by cheapest return flights first.

Deals found on 1/11

Showing 1-10 of 17 resultsSorted by cheapest first
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Best time to book a flight from Dulles Intl to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Dulles Intl with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Sydney

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Sydney?

The best time to book flights from Washington, D.C. Dulles Intl Airport to Sydney is 4 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Sydney (average of $1,843). Flying from Washington, D.C. Dulles Intl Airport to Sydney in December is currently the most expensive (average of $2,941). 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 Washington, D.C. Dulles Intl Airport to Sydney?

Airfare is typical for this route at the moment.

Washington, D.C. Dulles Intl Airport to Sydney flights typically cost between $1,875 and $2,422 in March.
The cheapest return price found within the last 5 days was $1,876 on Air New Zealand (8 Mar–22 Mar).

Related info for your journey

  • What airport do you fly into for flights to Sydney from Washington, D.C. Dulles Intl?

    If you book a flight to Sydney from Washington, D.C. Dulles Intl, you will be flying to Kingsford Smith, which is the city’s only airport. Sydney Kingsford Smith (SYD) is located 7.5 km from the centre of Sydney. There are 0 flights from Washington, D.C. Dulles Intl to Kingsford Smith per day from 0 different airlines.

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

    For as low as $2,477, Alaska Airlines can have you in Sydney from Washington, D.C. Dulles Intl Airport in 27h 54m. Airlines will cover a distance of 15670 km. This flight may include one or multiple stops.

  • Can I find deals for flights from Dulles Intl to Sydney that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Sydney.

  • Can I find deals for business class flights from Dulles Intl to Sydney?

    Yes. Cheapflights offers flight deals from Dulles Intl to Sydney 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 Washington, D.C. Dulles Intl Airport to Sydney?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Sydney (average of $1,843). Flying from Washington, D.C. Dulles Intl Airport to Sydney in December is currently the most expensive (average of $2,941). 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 Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Penrith
Manly
Cronulla
Katoomba
Terrigal
Lithgow
Randwick
Leura
Bondi Beach
Coogee

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Sydney

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Reagan-National to Sydney flights
Dulles Intl to Coolangatta flights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Dulles Intl to Sydney. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights simply makes it quick and affordable to book flights from Dulles Intl to Sydney by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to Sydney from Dulles Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Dulles Intl today and book when prices fit your budget.

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