Find flights
When to book
Airlines
FAQs

Cheap flights from Washington, D.C. to Sydney from $691

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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SYD
20 Jul — 27 Jul1
1 adult

Cheapflights Tip: The best prices from Washington, D.C. to Sydney Kingsford Smith are usually found in August or February, booked 4 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap 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 15 July 2025.

Round-trip from

$1,537

One-way from

$691

Popular in

December

Cheapest in

August

Average price

$1,951
7/9-21/9
  • 7/9-21/9
  • 4 total stops
  • 71h 21m total
  • Washington, D.C. to Sydney
11/8
  • 11/8
  • 3 total stops
  • 55h 15m total
  • Washington, D.C. to Sydney
Highest demand for flights based on searches. 21% potential increase in price ($775 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease ($120 potential savings vs. average return price).
Average for round-trip flights in July 2025

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

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 15 July 2025.

Sun 7/905:35BWI - SYD
2 stops35h 45mMultiple Airlines
Sun 21/909:20SYD - BWI
2 stops35h 36mMultiple Airlines
Deal found 13/7$1,537
Thu 11/1215:24BWI - SYD
1 stop23h 31mQantas Airways
Sat 20/1221:55SYD - BWI
2 stops40h 28mQantas Airways
Deal found 14/7$1,721
Sun 7/916:20BWI - SYD
2 stops24h 40mUnited Airlines
Sun 21/910:20SYD - BWI
1 stop21h 11mUnited Airlines
Deal found 14/7$1,755
Mon 1/919:20BWI - SYD
1 stop21h 35mAmerican Airlines
Sun 14/912:10SYD - BWI
1 stop20h 26mAmerican Airlines
Deal found 14/7$1,770
Sat 1/1119:28DCA - SYD
2 stops26h 02mFiji Airways
Sat 8/1114:30SYD - DCA
2 stops22h 24mFiji Airways
Deal found 13/7$1,881
Wed 13/820:19IAD - SYD
2 stops52h 21mMultiple Airlines
Mon 18/817:45SYD - IAD
1 stop36h 40mMultiple Airlines
Deal found 13/7$1,954
Fri 22/818:59DCA - SYD
2 stops53h 41mMultiple Airlines
Fri 29/817:45SYD - DCA
1 stop41h 14mMultiple Airlines
Deal found 13/7$2,024
Sun 7/912:41IAD - SYD
2 stops28h 39mAir Canada
Sun 21/909:20SYD - IAD
2 stops25h 45mAir Canada
Deal found 14/7$2,092
Mon 27/1011:05DCA - SYD
2 stops30h 30mAir Canada
Sun 9/1111:20SYD - DCA
2 stops39h 06mAir Canada
Deal found 13/7$2,095
Wed 29/1018:58DCA - SYD
2 stops33h 47mAlaska Airlines
Thu 13/1121:40SYD - DCA
2 stops38h 20mAlaska Airlines
Deal found 13/7$2,099
Wed 27/821:40IAD - SYD
2 stops31h 20mTurkish Airlines
Tue 9/920:55SYD - IAD
2 stops36h 50mTurkish Airlines
Deal found 13/7$2,124
Thu 14/820:19IAD - SYD
2 stops33h 26mAlaska Airlines
Tue 19/821:40SYD - IAD
2 stops33h 07mAlaska Airlines
Deal found 13/7$2,160

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 15 July 2025.
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

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 7/9

05:35-07:20

2 stops35h 45m

Sydney Kingsford Smith

Sun 21/9

09:20-06:56

2 stops35h 36m

$1,537

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Thu 11/12

15:24-06:55

1 stop23h 31m

Sydney Kingsford Smith

Sat 20/12

21:55-22:23

2 stops40h 28m

$1,721

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 7/9

16:20-07:00

2 stops24h 40m

Sydney Kingsford Smith

Sun 21/9

10:20-17:31

1 stop21h 11m

$1,755

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 1/9

19:20-06:55

1 stop21h 35m

Sydney Kingsford Smith

Sun 14/9

12:10-18:36

1 stop20h 26m

$1,770

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sat 1/11

19:28-12:30

2 stops26h 02m

Sydney Kingsford Smith

Sat 8/11

14:30-20:54

2 stops22h 24m

$1,881

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 13/8

20:19-14:40

2 stops52h 21m

Sydney Kingsford Smith

Mon 18/8

17:45-16:25

1 stop36h 40m

$1,954

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Fri 22/8

18:59-14:40

2 stops53h 41m

Sydney Kingsford Smith

Fri 29/8

17:45-20:59

1 stop41h 14m

$2,024

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 7/9

12:41-07:20

2 stops28h 39m

Sydney Kingsford Smith

Sun 21/9

09:20-21:05

2 stops25h 45m

$2,092

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Mon 27/10

11:05-08:35

2 stops30h 30m

Sydney Kingsford Smith

Sun 9/11

11:20-10:26

2 stops39h 06m

$2,095

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 29/10

18:58-19:45

2 stops33h 47m

Sydney Kingsford Smith

Thu 13/11

21:40-20:00

2 stops38h 20m

$2,099

Flights are sorted by cheapest return flights first.

Deals found on 14/7

Showing 1-10 of 45 results
1
2
3
...
5

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 11 July 2025.

Booking 4 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, May is the cheapest month in which you can book a flight from Washington, D.C. to Sydney (average of $129). Flying from Washington, D.C. to Sydney in October is currently the most expensive (average of $171). 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.

What is the cheapest time of day to fly from WAS to SYD?

Find hourly flight availability from Washington, D.C. to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 July 2025.

It’s typically best to fly out from Washington, D.C. to Sydney in the morning. Doing so could potentially save you 28% on the flight price compared to flying in the evening, which is usually more expensive.

How much does it cost for a return flight from Washington, D.C. to Sydney?

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 15 July 2025.
Read reviews from past customers who have flown with ANA, Fiji Airways, andDelta 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.

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
8.4
Very Good

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
8.0
Very Good

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

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.

  • What are the cheapest airlines flying from Washington, D.C. to Sydney round-trip?

    Flying on Qantas Airways is currently your cheapest option to Sydney, with prices starting at $1,721. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $1,755 and $1,770, respectively. Qantas Airways is 6% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. to Sydney one-way?

    The cheapet airlines for a one-way flight from Washington, D.C. to Sydney are Qantas Airways ($933), Delta ($966), and Fiji Airways ($1,059).

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

  • 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, May is the cheapest month in which you can book a flight from Washington, D.C. to Sydney (average of $129). Flying from Washington, D.C. to Sydney in October is currently the most expensive (average of $171). 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
Katoomba
Penrith
Manly
Coogee
Cronulla
Terrigal
Lithgow
Randwick
Bondi Beach
Leura

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington, D.C. to Sydney

See prices for flight routes from nearby airports that may be better suited for you.

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 15 July 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$2,198Average$2,483FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.