Sydney

$450+ Cheap flights from Washington, D.C. (WAS) to Sydney (SYD)

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SYD
Jul 8 — Jul 151
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Cheapflights Tip: The best prices from Washington, D.C. to Sydney Kingsford Smith are usually found in February or April, booked 4 days in advance, depart on a Tuesday or Thursday 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 July 3, 2025.

Round-trip from

$957
(Trip.com)

One-way from

$450
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,323
From Washington, D.C. (WAS) to Sydney Kingsford Smith
One-way flight from Washington, D.C. (WAS) to Sydney Kingsford Smith
Highest demand for flights based on searches. 21% potential increase in price ($332 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($50 potential savings vs. average RT 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 July 3, 2025.

This Trip.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/66:10 amIAD - SYD
2 stops34h 55mMultiple Airlines
Sun 8/1712:10 pmSYD - IAD
2 stops26h 09mMultiple Airlines
Deal found 7/3$957
This flugladen.de deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/159:59 amDCA - SYD
1 stop31h 06mAlaska Airlines
Fri 8/229:10 amSYD - DCA
1 stop25h 49mAlaska Airlines
Deal found 7/1$1,023
This Mytrip deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/271:37 pmBWI - SYD
2 stops27h 58mMultiple Airlines
Sun 11/911:20 amSYD - BWI
3 stops29h 14mMultiple Airlines
Deal found 6/30$1,056
This Alaska Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:55 amBWI - SYD
2 stops32h 35mAlaska Airlines
Thu 11/135:45 pmSYD - BWI
2 stops28h 33mAlaska Airlines
Deal found 7/1$1,109
This Cheapflightsfares deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/131:38 pmBWI - SYD
1 stop27h 17mQantas Airways
Wed 8/2712:10 pmSYD - BWI
1 stop24h 52mQantas Airways
Deal found 7/2$1,119
This Trip.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/139:59 amDCA - SYD
1 stop31h 06mMultiple Airlines
Wed 8/209:10 amSYD - DCA
1 stop25h 49mMultiple Airlines
Deal found 7/1$1,141
This American Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/61:38 pmBWI - SYD
1 stop27h 17mAmerican Airlines
Sun 8/1712:10 pmSYD - BWI
1 stop20h 40mAmerican Airlines
Deal found 7/3$1,166
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/166:25 amBWI - SYD
1 stop34h 30mUnited Airlines
Fri 8/2910:20 amSYD - BWI
1 stop33h 28mUnited Airlines
Deal found 7/2$1,173
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1612:17 pmBWI - SYD
2 stops28h 18mDelta
Fri 8/299:25 amSYD - BWI
2 stops25h 50mDelta
Deal found 7/2$1,179
This Alaska Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/99:00 amIAD - SYD
3 stops32h 30mAlaska Airlines
Thu 9/115:45 pmSYD - IAD
2 stops27h 48mAlaska Airlines
Deal found 7/1$1,196
This oojo deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:28 pmDCA - SYD
2 stops26h 02mFiji Airways
Sat 11/82:30 pmSYD - DCA
2 stops22h 24mFiji Airways
Deal found 7/1$1,224
This oojo deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/95:55 pmIAD - SYD
2 stops24h 50mAir New Zealand
Tue 9/2311:50 amSYD - IAD
2 stops33h 01mAir New Zealand
Deal found 7/1$1,346

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated July 3, 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

Wed 8/6

6:10 am-7:05 am

2 stops34h 55m

Sydney Kingsford Smith

Sun 8/17

12:10 pm-12:19 am

2 stops26h 09m

$957

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Fri 8/15

9:59 am-7:05 am

1 stop31h 06m

Sydney Kingsford Smith

Fri 8/22

9:10 am-8:59 pm

1 stop25h 49m

$1,023

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 8/19

5:45 am-7:20 am

2 stops35h 35m

Sydney Kingsford Smith

Tue 8/26

1:15 pm-6:54 am

2 stops31h 39m

$1,075

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 8/13

1:38 pm-6:55 am

1 stop27h 17m

Sydney Kingsford Smith

Wed 8/27

12:10 pm-11:02 pm

1 stop24h 52m

$1,119

Washington, D.C.Sydney

DCA - SYD

DCASYD

Washington, D.C. Reagan-National

Wed 8/13

9:59 am-7:05 am

1 stop31h 06m

Sydney Kingsford Smith

Wed 8/20

9:10 am-8:59 pm

1 stop25h 49m

$1,141

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 9/9

7:00 am-7:30 am

2 stops34h 30m

Sydney Kingsford Smith

Tue 9/23

5:45 pm-5:39 am

1 stop25h 54m

$1,149

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 8/6

1:38 pm-6:55 am

1 stop27h 17m

Sydney Kingsford Smith

Sun 8/17

12:10 pm-6:50 pm

1 stop20h 40m

$1,166

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sat 8/16

6:25 am-6:55 am

1 stop34h 30m

Sydney Kingsford Smith

Fri 8/29

10:20 am-5:48 am

1 stop33h 28m

$1,173

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sat 8/16

12:17 pm-6:35 am

2 stops28h 18m

Sydney Kingsford Smith

Fri 8/29

9:25 am-9:15 pm

2 stops25h 50m

$1,179

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 9/9

9:00 am-7:30 am

3 stops32h 30m

Sydney Kingsford Smith

Thu 9/11

5:45 pm-7:33 am

2 stops27h 48m

$1,196

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 43 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 round-trip 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 round-trip flight from Washington, D.C. to Sydney. Price data was last updated on June 27, 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, February is the cheapest month in which you can book a flight from Washington, D.C. to Sydney (average of $1,040). Flying from Washington, D.C. to Sydney in December is currently the most expensive (average of $1,630). 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 July 3, 2025.

It’s optimal to fly from Washington, D.C. to Sydney at noon. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from Washington, D.C. to Sydney?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Sydney. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. to Sydney flight should consider departing on Monday mornings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 July 3, 2025.
Peruse reviews from past customers who have flown with ANA, Asiana Airlines, and Fiji Airways 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.
8.4
Very good

Boarding

8.5

Entertainment

7.9

Comfort

8.2

Food

7.7

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
8.4
Very good
8.4
Very good

Boarding

8.5

Entertainment

7.9

Comfort

8.2

Food

7.7

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
8.4
Very good

Boarding

8.5

Entertainment

7.9

Comfort

8.2

Food

7.7

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
8.4
Very good

Boarding

8.5

Entertainment

7.9

Comfort

8.2

Food

7.7

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
8.0
Very good
8.4
Very good

Boarding

8.5

Entertainment

7.9

Comfort

8.2

Food

7.7

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
8.4
Very good

Boarding

8.5

Entertainment

7.9

Comfort

8.2

Food

7.7

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

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.?

    Sydney Kingsford Smith (SYD), located 4.6 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. to Sydney. 7 airlines have flights to Kingsford Smith from Washington, D.C. on a regular basis. Booking flights from Washington, D.C. to Sydney Kingsford Smith should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. per day.

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

    Currently priced at $1,023, Alaska Airlines will fly you from Washington, D.C. to Sydney and back. In addition to Alaska Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Qantas Airways and American Airlines - these airlines can fly you to your destination from $1,119 and $1,166, respectively. Alaska Airlines is 16% 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 cheapest airlines for a one-way flight from Washington, D.C. to Sydney are Qantas Airways ($570), Alaska Airlines ($579), and American Airlines ($626).

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

  • Where are the most common layover locations when flying from Washington, D.C. to Sydney?

  • What are some popular things to do or see while on a layover in Los Angeles?

    Hollywood Bowl, Hollywood Walk of Fame, and L.A. Live are the most popular attractions in Los Angeles if you're in need of something to do during your layover. Hollywood Bowl, Hollywood Walk of Fame and L.A. Live are located about 12.5 mi, 11.7 mi, and 10.8 mi, respectively from Los Angeles if you are interested in checking them out. Those landing in Los Angeles looking to spend some time exploring during their layover can rent a car for about $41 per day.

  • What are some popular points of interest to see during a layover in Dallas?

    If you're on a layover in Dallas and looking for things to do, consider visiting American Airlines Center, Dallas World Aquarium, or Reunion Tower. American Airlines Center, Dallas World Aquarium, and Reunion Tower can be accessed by traveling approximately 15.0 mi, 15.5 mi, and 15.6 mi, respectively from Dallas/Fort Worth. Travelers can rent a car at Dallas/Fort Worth for an average daily rate of $53 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Washington, D.C. to Sydney flights?

  • 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 vacation 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 $1,040). Flying from Washington, D.C. to Sydney in December is currently the most expensive (average of $1,630). 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Wollongong
Parramatta
Manly
Coogee

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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 7 airlines flying from Washington, D.C. to Sydney

Discover the top 7 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 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$346Average$1,579FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$600Average$1,074FlexibilityNo cancel feeOn-time71%
DeltaCheapest$609Average$1,185FlexibilityNo cancel feeOn-timeN/A
Qantas AirwaysCheapest$815Average$1,299FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$1,015Average$1,282FlexibilityNo cancel feeOn-time67%
Air New ZealandCheapest$1,294Average$1,671FlexibilityNo cancel feeOn-time78%
ANACheapest$1,370Average$1,587FlexibilityNo cancel feeOn-time80%

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