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Cheap flights from Washington, D.C. to Sydney from $799

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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SYD
10 Sep — 17 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Washington, D.C. to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Washington, D.C. to Sydney
Explore the most affordable flight options available from Washington, D.C. to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 August 2026.

Sun 13/907:50 -
3 stops38h 00m
Wed 23/906:15 -
3 stops42h 12m
Deal found 11/8$1,477
Wed 16/911:12 -
3 stops34h 38m
Wed 23/913:15 -
3 stops35h 12m
Deal found 11/8$1,479
Wed 23/911:12 -
3 stops45h 13m
Wed 30/913:15 -
3 stops31h 05m
Deal found 9/8$1,493
Fri 25/909:27 -
3 stops36h 23m
Fri 2/1013:15 -
3 stops38h 56m
Deal found 11/8$1,496
Thu 24/906:00 -
3 stops74h 25m
Thu 1/1013:15 -
3 stops55h 05m
Deal found 10/8$1,646
Wed 9/911:12 -
2 stops29h 53m
Mon 21/909:10 -
2 stops39h 07m
Deal found 8/8$1,723
Wed 9/907:00 -
2 stops34h 05m
Wed 16/909:10 -
2 stops41h 01m
Deal found 10/8$1,728
Wed 16/907:00 -
2 stops34h 05m
Wed 23/909:10 -
2 stops45h 49m
Deal found 11/8$1,730
Wed 2/906:20 -
2 stops35h 10m
Wed 9/909:10 -
2 stops29h 00m
Deal found 7/8$1,731
Tue 22/911:12 -
2 stops29h 53m
Tue 29/909:10 -
2 stops39h 07m
Deal found 8/8$1,734
Wed 23/907:00 -
2 stops34h 05m
Wed 30/909:10 -
2 stops41h 01m
Deal found 8/8$1,741
Sun 9/819:23 -
1 stop21h 37m
Sun 23/809:30 -
1 stop35h 16m
Deal found 8/8$1,742

Find flight deals from Washington, D.C. to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Sydney (SYD). 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 August 2026.

Round-trip from

$1,477

One-way from

$799

Popular in

December

Cheapest in

April

Average price

$1,970
13/9-23/9
  • 13/9-23/9
  • 6 total stops
  • 80h 12m total
  • Washington, D.C. to Sydney
Search Deals
7/11
  • 7/11
  • 3 total stops
  • 58h 15m total
  • Washington, D.C. to Sydney
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($192 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($73 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Washington, D.C. to Sydney 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 August 2026.
Use the filters below to find and compare flights from Washington, D.C. to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Sun 23/8

17:44-07:00

1 stop23h 16m

Sydney Kingsford Smith

Wed 14/10

11:20-17:34

1 stop21h 14m

$1,754

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Mon 9/11

16:30-07:00

1 stop22h 30m

Sydney Kingsford Smith

Mon 23/11

11:50-17:26

1 stop21h 36m

$1,853

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Wed 11/11

08:00-09:40

2 stops57h 40m

Sydney Kingsford Smith

Sun 15/11

09:15-23:38

1 stop30h 23m

$1,870

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Mon 25/1

08:37-09:05

1 stop32h 28m

Sydney Kingsford Smith

Thu 11/2

09:20-16:25

1 stop23h 05m

$1,924

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Sun 13/9

17:44-07:00

1 stop23h 16m

Sydney Kingsford Smith

Thu 24/9

09:30-16:37

1 stop21h 07m

$1,924

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Thu 28/1

18:31-09:20

1 stop22h 49m

Sydney Kingsford Smith

Wed 10/2

11:50-17:17

1 stop21h 27m

$1,924

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Wed 11/11

16:04-06:55

1 stop22h 51m

Sydney Kingsford Smith

Sun 15/11

06:05-14:59

2 stops24h 54m

$1,966

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Thu 24/9

13:05-06:55

2 stops27h 50m

Sydney Kingsford Smith

Thu 1/10

10:20-21:02

2 stops24h 42m

$2,000

Washington, D.C.Sydney

DCA Washington, D.C. Reagan-National - SYD Sydney Kingsford Smith

DCASYD

Washington, D.C. Reagan-National

Tue 26/1

09:30-19:45

2 stops42h 15m

Sydney Kingsford Smith

Thu 11/2

21:40-20:00

2 stops38h 20m

$2,043

BaltimoreSydney

BWI Baltimore/Washington - SYD Sydney Kingsford Smith

BWISYD

Baltimore/Washington

Fri 21/8

15:04-06:55

2 stops25h 51m

Sydney Kingsford Smith

Wed 2/9

10:20-21:29

2 stops25h 09m

$2,085

Flights are sorted by cheapest return flights first.

Deals found on 7/8

Showing 1-10 of 55 resultsSorted by cheapest first
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Best time to book a flight from Washington, D.C. to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Washington, D.C. 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 Washington, D.C. to Sydney

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Sydney (average of $1,857). Flying from Washington, D.C. to Sydney in December is currently the most expensive (average of $2,847). 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. to Sydney?

Airfare is below average for this route at the moment.
Washington, D.C. to Sydney flights typically cost between $1,802 and $2,210 in September.
The cheapest return price found within the last 5 days was $1,477 on Multiple Airlines (13 Sept–23 Sept).

What’s the top stopover airport for flights from Washington, D.C. to Sydney?

Share of one-stop return flights from Washington, D.C. to Sydney chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Los Angeles (LAX) – chosen by Cheapflights users on 40% of one-stop itineraries from Washington, D.C. to Sydney on Cheapflights.

What’s the cheapest stopover airport for flights from Washington, D.C. to Sydney?

Average return fare for one-stop flights from Washington, D.C. to Sydney, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Vancouver (YVR) is the most affordable one-stop option, with an average return flight price of $2,121.

What’s the fastest stopover option from Washington, D.C. to Sydney?

Shortest average travel time for one-stop one-way flights from Washington, D.C. to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Los Angeles (LAX) have the shortest average one-way travel time for one-stop routes: 22h 53m.

Which airport typically offers the quickest stopover for flights from Washington, D.C. to Sydney?

Average stopover duration for one-stop one-way flights from Washington, D.C. to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Dallas (DFW) offer the fastest connection on this route, with an average stopover time of 1h 52m.

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

Booking 2 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Sydney. 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 into for flights to Sydney from Washington, D.C.?

    If you book a flight to Sydney from Washington, D.C., 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. to Kingsford Smith per day from 0 different airlines.

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

    Airlines like United Airlines, Delta, and Emirates fly from Washington, D.C. to Sydney in about 23h 16m. The time it takes to get you to your destination can typically vary by up to 17h 54m. The distance between Washington, D.C. and Sydney is about 15741 km. This flight may include one or multiple stops.

  • What are the most popular routes from Washington, D.C. to Sydney?

    The most popular flight routes from Washington, D.C. to Sydney are Washington, D.C. Dulles Intl - Sydney Kingsford Smith, Baltimore/Washington - Sydney Kingsford Smith and Washington, D.C. Reagan-National - Sydney Kingsford Smith.

  • Can I find deals for flights from Washington, D.C. to Sydney that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Sydney?

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

  • Can I find deals for business class flights from Washington, D.C. to Sydney?

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

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Sydney (average of $1,857). Flying from Washington, D.C. to Sydney in December is currently the most expensive (average of $2,847). 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
Katoomba
Lithgow
Cronulla
Randwick
Terrigal
Leura
Bondi Beach
Coogee

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington, D.C. to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Sydney flights
Reagan-National to Sydney flights
Dulles Intl to Coolangatta 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 Washington, D.C. to Sydney?

When you search for this flight from Washington, D.C. to Sydney, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Sydney?

Cheapflights helps you find that perfect flight to Sydney from Washington, D.C. 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 Washington, D.C. to Sydney with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Washington, D.C. to Sydney flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Washington, D.C. to Sydney become cheaper?

Yes! Start tracking prices for Washington, D.C. to Sydney flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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