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Cheap flights from Washington, D.C. to Sydney from $754

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 14/4. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SYD
4 Mar — 11 Mar1
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 2 February 2026.

Mon 12/1012:55
DCA
-
SYD
2 stops28h 25m
Air New Zealand
Fri 23/1010:20
SYD
-
DCA
2 stops26h 30m
Air New Zealand
Deal found 31/1$1,659
Tue 18/809:55
IAD
-
SYD
1 stop31h 25m
EVA Air
Thu 3/909:20
SYD
-
IAD
1 stop35h 05m
EVA Air
Deal found 31/1$1,666
Mon 12/1012:55
DCA
-
SYD
2 stops28h 25m
Asiana Airlines
Fri 23/1010:20
SYD
-
DCA
1 stop27h 14m
Asiana Airlines
Deal found 31/1$1,666
Tue 18/809:55
IAD
-
SYD
1 stop31h 25m
ANA
Tue 1/909:20
SYD
-
IAD
2 stops36h 35m
ANA
Deal found 31/1$1,669
Tue 28/409:55
IAD
-
SYD
2 stops31h 25m
Air New Zealand
Sun 10/509:20
SYD
-
IAD
1 stop26h 05m
Air New Zealand
Deal found 31/1$1,671
Mon 13/409:00
IAD
-
SYD
1 stop32h 20m
Multiple Airlines
Fri 24/409:20
SYD
-
IAD
1 stop26h 05m
Multiple Airlines
Deal found 31/1$1,678
Wed 15/409:59
DCA
-
SYD
1 stop31h 31m
Multiple Airlines
Wed 22/413:10
SYD
-
DCA
2 stops44h 50m
Multiple Airlines
Deal found 1/2$1,679
Mon 19/1009:45
IAD
-
SYD
2 stops31h 35m
Air Canada
Wed 4/1111:20
SYD
-
IAD
2 stops25h 34m
Air Canada
Deal found 1/2$1,702
Wed 25/209:45
IAD
-
SYD
2 stops31h 50m
Air Canada
Wed 11/310:20
SYD
-
IAD
2 stops25h 06m
Air Canada
Deal found 1/2$1,709
Tue 16/616:10
IAD
-
SYD
2 stops25h 10m
Air Canada
Tue 21/709:20
SYD
-
IAD
2 stops25h 04m
Air Canada
Deal found 1/2$1,717
Tue 24/209:45
IAD
-
SYD
3 stops31h 50m
Air Canada
Tue 17/310:20
SYD
-
IAD
2 stops25h 06m
Air Canada
Deal found 2/2$1,721
Tue 31/309:55
IAD
-
SYD
2 stops31h 25m
Air Canada
Sun 19/409:20
SYD
-
IAD
2 stops39h 57m
Air Canada
Deal found 1/2$1,730

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 2 February 2026.

Round-trip from

$1,671

One-way from

$754

Popular in

December

Cheapest in

April

Average price

$1,618
Air New Zealand
  • Air New Zealand
  • 28/4-10/5
  • 3 total stops
  • 57h 30m total
  • Washington, D.C. to Sydney
Search Deals
18/3
  • 18/3
  • 3 total stops
  • 39h 15m total
  • Washington, D.C. to Sydney
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($348 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($88 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 2 February 2026.
Use the filters below to find and compare flights from Washington, D.C. to Sydney that are best for you.

Fly from

Washington, D.C.

Fly to

Sydney

Route

Depart

Return

Price

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 16/2

13:30-19:20

2 stops37h 50m

Sydney Kingsford Smith

Fri 20/2

21:15-19:20

2 stops38h 05m

$1,875

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 26/5

15:01-06:55

1 stop25h 54m

Sydney Kingsford Smith

Wed 10/6

10:20-16:25

1 stop20h 05m

$1,985

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 24/5

17:10-06:50

1 stop23h 40m

Sydney Kingsford Smith

Wed 10/6

09:15-16:09

1 stop20h 54m

$1,985

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 3/3

18:05-09:15

1 stop23h 10m

Sydney Kingsford Smith

Tue 10/3

11:05-20:47

1 stop24h 42m

$1,985

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 3/3

12:37-07:00

1 stop26h 23m

Sydney Kingsford Smith

Tue 10/3

11:05-17:23

1 stop21h 18m

$1,985

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 24/5

17:49-06:55

1 stop23h 06m

Sydney Kingsford Smith

Wed 10/6

10:20-16:47

1 stop20h 27m

$1,985

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Mon 25/5

17:49-06:55

1 stop23h 06m

Sydney Kingsford Smith

Wed 10/6

10:20-22:02

1 stop25h 42m

$1,985

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 25/3

16:35-07:25

1 stop23h 50m

Sydney Kingsford Smith

Wed 8/4

09:15-15:30

1 stop20h 15m

$1,986

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 23/6

17:10-06:50

1 stop23h 40m

Sydney Kingsford Smith

Mon 20/7

09:15-16:09

1 stop20h 54m

$1,986

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 13/4

17:55-06:55

1 stop23h 00m

Sydney Kingsford Smith

Wed 29/4

10:20-16:25

1 stop20h 05m

$1,986

Flights are sorted by cheapest return flights first.

Deals found on 31/1

Showing 1-10 of 57 results
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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

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

Use this chart to determine the optimal time to book a return flight from Washington, D.C. to Sydney. Price data was last updated on 30 January 2026.

Booking 37 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.

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 $197). Flying from Washington, D.C. to Sydney in May is currently the most expensive (average of $1,198). 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 47% 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.

Dallas (DFW) is the most affordable one-stop option, with an average return flight price of $1,287.

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 Dallas (DFW) have the shortest average one-way travel time for one-stop routes: 21h 54m.

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 19m.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated 2 February 2026.
Read reviews from past customers who have flown with American Airlines from Washington, D.C. to Sydney. 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.
American Airlines
7.2
Good
11,212 reviews
Check prices

Comfort

7.2

Food

6.4

Crew

8.0

Entertainment

6.9

Boarding

7.5

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.
American Airlines
7.2
Good
11,212 reviews
American Airlines
7.2
Good
11,212 reviews
Check prices

Comfort

7.2

Food

6.4

Crew

8.0

Entertainment

6.9

Boarding

7.5

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.

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 Turkish Airlines, United Airlines, and Delta fly from Washington, D.C. to Sydney in about 23h 40m. The time it takes to get you to your destination can typically vary by up to 14h 10m. The distance between Washington, D.C. and Sydney is about 15704 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 $1,862.

  • 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 $197). Flying from Washington, D.C. to Sydney in May is currently the most expensive (average of $1,198). 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
Terrigal
Lithgow
Leura
Coogee
Cronulla
Randwick
Bondi Beach

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 2 February 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,862Average$2,488FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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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