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Cheap flights from Washington, D.C. to Sydney from $700

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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SYD
23 Jul — 30 Jul1
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 23 June 2026.

Tue 4/809:50
IAD
-
SYD
3 stops36h 00m
Multiple Airlines
Tue 11/813:15
SYD
-
IAD
3 stops35h 01m
Multiple Airlines
Deal found 20/6$1,422
Sun 21/611:54
BWI
-
SYD
2 stops28h 56m
Delta
Tue 7/709:15
SYD
-
BWI
2 stops39h 27m
Delta
Deal found 19/6$1,670
Sun 21/611:54
BWI
-
SYD
2 stops28h 56m
Delta
Sun 5/709:15
SYD
-
BWI
2 stops27h 58m
Delta
Deal found 20/6$1,680
Mon 22/610:33
BWI
-
SYD
2 stops30h 17m
Delta
Sun 5/709:15
SYD
-
BWI
2 stops26h 10m
Delta
Deal found 21/6$1,683
Sun 30/813:13
BWI
-
SYD
2 stops27h 47m
United Airlines
Sun 6/909:30
SYD
-
BWI
1 stop21h 05m
United Airlines
Deal found 20/6$1,696
Mon 22/614:10
BWI
-
SYD
2 stops26h 40m
Delta
Tue 4/809:15
SYD
-
BWI
2 stops26h 14m
Delta
Deal found 18/6$1,703
Mon 10/807:00
DCA
-
SYD
3 stops49h 10m
Multiple Airlines
Mon 24/813:15
SYD
-
DCA
3 stops41h 44m
Multiple Airlines
Deal found 22/6$1,708
Mon 22/614:10
BWI
-
SYD
2 stops26h 40m
Delta
Thu 30/709:15
SYD
-
BWI
2 stops26h 11m
Delta
Deal found 18/6$1,740
Wed 1/719:23
BWI
-
SYD
1 stop21h 37m
Air New Zealand
Wed 8/710:20
SYD
-
BWI
1 stop21h 37m
Air New Zealand
Deal found 19/6$1,748
Sun 26/718:59
BWI
-
SYD
1 stop21h 56m
Air New Zealand
Sun 23/810:20
SYD
-
BWI
1 stop21h 23m
Air New Zealand
Deal found 21/6$1,749
Sun 9/819:23
BWI
-
SYD
1 stop21h 37m
Air New Zealand
Sun 23/809:30
SYD
-
BWI
1 stop21h 05m
Air New Zealand
Deal found 21/6$1,752
Sun 2/806:35
BWI
-
SYD
3 stops39h 15m
Multiple Airlines
Sun 9/813:15
SYD
-
BWI
3 stops49h 08m
Multiple Airlines
Deal found 18/6$1,753

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 23 June 2026.

Round-trip from

$1,422

One-way from

$700

Popular in

December

Cheapest in

April

Average price

$2,230
4/8-11/8
  • 4/8-11/8
  • 6 total stops
  • 71h 01m total
  • Washington, D.C. to Sydney
Search Deals
5/8
  • 5/8
  • 3 total stops
  • 34h 39m total
  • Washington, D.C. to Sydney
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($194 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($59 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
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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 23 June 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 - SYD

BWISYD

Baltimore/Washington

Sun 9/8

12:30-06:50

2 stops28h 20m

Sydney Kingsford Smith

Sun 23/8

09:15-23:18

2 stops28h 03m

$1,703
Fastest return journey

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 10/8

19:23-07:00

1 stop21h 37m

Sydney Kingsford Smith

Mon 24/8

09:30-16:35

1 stop21h 05m

$1,913

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 5/8

15:03-07:00

2 stops25h 57m

Sydney Kingsford Smith

Mon 17/8

09:30-16:35

1 stop21h 05m

$1,913

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 9/8

19:23-07:00

1 stop21h 37m

Sydney Kingsford Smith

Sun 23/8

09:30-16:35

1 stop21h 05m

$1,913

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 18/8

15:04-06:55

2 stops25h 51m

Sydney Kingsford Smith

Sun 6/9

09:30-16:35

1 stop21h 05m

$1,919

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 26/7

06:38-06:55

1 stop34h 17m

Sydney Kingsford Smith

Sun 16/8

10:20-21:29

2 stops25h 09m

$1,937

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Thu 15/10

14:10-07:50

2 stops26h 40m

Sydney Kingsford Smith

Mon 26/10

09:40-22:55

2 stops28h 15m

$1,946

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 18/8

08:00-06:55

1 stop32h 55m

Sydney Kingsford Smith

Sat 5/9

09:30-17:20

1 stop21h 50m

$2,002

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 3/8

10:25-06:50

2 stops30h 25m

Sydney Kingsford Smith

Mon 10/8

09:15-23:18

2 stops28h 03m

$2,032

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Thu 10/9

18:52-06:55

1 stop22h 03m

Sydney Kingsford Smith

Sun 27/9

10:20-17:39

1 stop21h 19m

$2,153

Flights are sorted by cheapest return flights first.

Deals found on 22/6

Showing 1-10 of 52 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, August is the cheapest month in which you can book a flight from Washington, D.C. to Sydney (average of $111). Flying from Washington, D.C. to Sydney in June is currently the most expensive (average of $1,077). 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?

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 60% 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 $2,138.

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 70 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 1 airline.

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

    Airlines like Delta, United Airlines, and Emirates fly from Washington, D.C. to Sydney in about 23h. The time it takes to get you to your destination can typically vary by up to 6h 10m. The distance between Washington, D.C. and Sydney is about 15670 km. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Washington, D.C. to Sydney round-trip?

    Flying on United Airlines is currently your cheapest option to Sydney, with prices starting at $1,852. United Airlines is 10% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, August is the cheapest month in which you can book a flight from Washington, D.C. to Sydney (average of $111). Flying from Washington, D.C. to Sydney in June is currently the most expensive (average of $1,077). 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
Cronulla
Terrigal
Lithgow
Randwick
Bondi Beach
Leura
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

Top airline flying from Washington, D.C. to Sydney

Discover the top airline that operate flights from Washington, D.C. to Sydney. 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 23 June 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,654Average$2,596FlexibilityNo cancel feeOn-time69%
Search United 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 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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