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Cheap flights from Washington, D.C. to Sydney from $749

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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SYD
31 Mar — 7 Apr1
1 adult

Cheapflights Tip: The best prices from Washington, D.C. to Sydney Kingsford Smith are usually found in February or April, booked 79 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 26 March 2025.

Round-trip from

$1,375

One-way from

$749

Popular in

December

Cheapest in

February

Average price

$1,619
Qantas Airways
  • Qantas Airways
  • 17/8-24/8
  • 2 total stops
  • 53h 56m total
  • Washington, D.C. to Sydney
2/4
  • 2/4
  • 2 total stops
  • 56h 55m total
  • Washington, D.C. to Sydney
Highest demand for flights based on searches. 19% potential increase in price ($799 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease ($127 potential savings vs. average return price).
Average for round-trip flights in March 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 26 March 2025.

Sun 17/811:30IAD - SYD
1 stop29h 25mQantas Airways
Sun 24/812:10SYD - IAD
1 stop24h 31mQantas Airways
Deal found 24/3$1,375
Wed 23/717:30DCA - SYD
1 stop24h 00mQantas Airways
Wed 20/812:10SYD - DCA
1 stop20h 55mQantas Airways
Deal found 24/3$1,375
Thu 1/511:12BWI - SYD
2 stops35h 03mMultiple Airlines
Thu 15/513:15SYD - BWI
3 stops32h 05mMultiple Airlines
Deal found 25/3$1,587
Tue 12/813:03IAD - SYD
2 stops28h 17mAir Canada
Tue 26/809:20SYD - IAD
2 stops25h 56mAir Canada
Deal found 25/3$1,644
Sun 4/506:00DCA - SYD
2 stops35h 20mAir Canada
Sun 18/509:20SYD - DCA
2 stops38h 59mAir Canada
Deal found 25/3$1,644
Tue 10/619:33DCA - SYD
2 stops26h 12mFiji Airways
Thu 24/713:15SYD - DCA
2 stops23h 45mFiji Airways
Deal found 25/3$1,909
Sat 9/817:35IAD - SYD
2 stops28h 10mMultiple Airlines
Sat 23/813:45SYD - IAD
2 stops22h 56mMultiple Airlines
Deal found 25/3$1,938
Tue 11/1118:59DCA - SYD
2 stops25h 31mMultiple Airlines
Tue 9/1214:10SYD - DCA
2 stops24h 57mMultiple Airlines
Deal found 25/3$1,938
Mon 25/812:15IAD - SYD
1 stop31h 10mANA
Sun 31/820:55SYD - IAD
1 stop32h 40mANA
Deal found 25/3$2,063
Fri 28/315:00IAD - SYD
2 stops37h 05mTurkish Airlines
Sun 30/321:55SYD - IAD
2 stops52h 50mTurkish Airlines
Deal found 24/3$2,197
Tue 5/815:30DCA - SYD
2 stops27h 55mANA
Tue 2/920:55SYD - DCA
2 stops38h 08mANA
Deal found 25/3$2,200
Fri 15/819:59IAD - SYD
2 stops33h 46mAlaska Airlines
Tue 26/821:40SYD - IAD
2 stops32h 19mAlaska Airlines
Deal found 25/3$2,246

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 26 March 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

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 17/8

11:30-06:55

1 stop29h 25m

Sydney Kingsford Smith

Sun 24/8

12:10-22:41

1 stop24h 31m

$1,375

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 23/7

17:30-07:30

1 stop24h 00m

Sydney Kingsford Smith

Wed 20/8

12:10-19:05

1 stop20h 55m

$1,375

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Thu 1/5

11:12-12:15

2 stops35h 03m

Sydney Kingsford Smith

Thu 15/5

13:15-07:20

3 stops32h 05m

$1,587

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 1/9

08:25-07:20

1 stop32h 55m

Sydney Kingsford Smith

Tue 9/9

09:20-06:45

1 stop35h 25m

$1,644

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Sun 4/5

06:00-07:20

2 stops35h 20m

Sydney Kingsford Smith

Sun 18/5

09:20-10:19

2 stops38h 59m

$1,644

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 10/6

19:33-11:45

2 stops26h 12m

Sydney Kingsford Smith

Thu 24/7

13:15-23:00

2 stops23h 45m

$1,909

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sat 9/8

17:35-11:45

2 stops28h 10m

Sydney Kingsford Smith

Sat 23/8

13:45-22:41

2 stops22h 56m

$1,938

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 25/8

12:15-09:25

1 stop31h 10m

Sydney Kingsford Smith

Sun 31/8

20:55-15:35

1 stop32h 40m

$2,065

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 5/8

15:30-09:25

2 stops27h 55m

Sydney Kingsford Smith

Tue 2/9

20:55-21:03

2 stops38h 08m

$2,200

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Tue 29/7

19:32-11:45

2 stops26h 13m

Sydney Kingsford Smith

Fri 22/8

13:15-17:59

2 stops42h 44m

$2,244

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 58 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 21 March 2025.

Booking 79 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 26 March 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.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

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 26 March 2025.
Peruse reviews from past customers who have flown with Air Tahiti Nui, Korean Air and ANA from Washington, D.C. to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Overall

8.7

Entertainment

7.2

Food

7.8

Boarding

8.7

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Comfort

8.0

Overall

8.7

Entertainment

7.2

Food

7.8

Boarding

8.7

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Comfort

8.0

Overall

8.7

Entertainment

7.2

Food

7.8

Boarding

8.7

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
8.3
Very Good

Comfort

8.0

Overall

8.7

Entertainment

7.2

Food

7.8

Boarding

8.7

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Comfort

8.0

Overall

8.7

Entertainment

7.2

Food

7.8

Boarding

8.7

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Comfort

8.0

Overall

8.7

Entertainment

7.2

Food

7.8

Boarding

8.7

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

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 2 different airlines.

  • 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 $1,375. Additional round-trip tickets that might be worth considering are offered by Air Canada and Fiji Airways, with the lowest prices starting at $1,644 and $1,909, respectively. Qantas Airways is 31% 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 Fiji Airways ($1,033), Alaska Airlines ($1,202), and ANA ($1,209).

  • 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Manly
Penrith
Coogee
Cronulla
Randwick
Terrigal
Lithgow
Bondi Beach
Leura
Swansea

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.

Top 2 airlines flying from Washington, D.C. to Sydney

Discover the top 2 airlines 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 26 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,902Average$2,406FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$2,157Average$2,475FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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How does Cheapflights help users find flights from Washington, D.C. to Sydney?

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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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