Cheap flights from Washington, D.C. to Sydney from $730
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 27/10. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SYD
12 Oct — 19 Oct1
Return
1 adult
Economy
Return
1 adult, Economy
Cheapflights Tip: The best prices from Washington, D.C. to Sydney Kingsford Smith are usually found in August or April, 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 12 September 2025.
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 12 September 2025.
Sat 25/1007:15IAD - SYD
2 stops32h 45mMultiple Airlines
Sat 1/1111:50SYD - IAD
2 stops27h 05mMultiple Airlines
Deal found 10/9$1,442
Mon 20/1006:15IAD - SYD
2 stops34h 50mMultiple Airlines
Fri 31/1013:05SYD - IAD
2 stops25h 24mMultiple Airlines
Deal found 10/9$1,491
Sun 26/1006:15IAD - SYD
2 stops35h 45mMultiple Airlines
Sun 2/1114:05SYD - IAD
2 stops26h 06mMultiple Airlines
Deal found 11/9$1,505
Mon 20/1006:15IAD - SYD
2 stops34h 50mMultiple Airlines
Sun 2/1114:05SYD - IAD
2 stops26h 06mMultiple Airlines
Deal found 11/9$1,508
Sat 18/1007:15IAD - SYD
2 stops33h 15mMultiple Airlines
Fri 31/1013:05SYD - IAD
2 stops25h 24mMultiple Airlines
Deal found 11/9$1,552
Mon 27/1006:15IAD - SYD
2 stops35h 45mMultiple Airlines
Sun 9/1114:05SYD - IAD
2 stops26h 06mMultiple Airlines
Deal found 10/9$1,555
Mon 27/1006:15IAD - SYD
2 stops35h 45mMultiple Airlines
Mon 10/1114:05SYD - IAD
2 stops26h 06mMultiple Airlines
Deal found 10/9$1,562
Wed 24/905:45BWI - SYD
2 stops40h 00mMultiple Airlines
Sat 27/913:45SYD - BWI
2 stops31h 16mMultiple Airlines
Deal found 10/9$1,571
Sun 26/1006:15IAD - SYD
2 stops36h 00mMultiple Airlines
Fri 31/1011:50SYD - IAD
2 stops26h 39mMultiple Airlines
Deal found 11/9$1,573
Sun 26/1011:39BWI - SYD
3 stops29h 56mMultiple Airlines
Fri 31/1014:15SYD - BWI
2 stops31h 20mMultiple Airlines
Deal found 11/9$1,656
Fri 17/1016:45IAD - SYD
2 stops47h 45mMultiple Airlines
Sun 26/1013:05SYD - IAD
2 stops25h 24mMultiple Airlines
Deal found 11/9$1,666
Sun 30/1115:07BWI - SYD
2 stops28h 28mQantas Airways
Fri 26/1214:05SYD - BWI
1 stop24h 53mQantas Airways
Deal found 11/9$1,671
Best flights from Washington, D.C. to Sydney
Discover carefully curated flight deals from Washington, D.C. to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2025.
Tue 11/1118:13IAD - SYD
2 stops33h 32mAlaska Airlines
Tue 18/1121:40SYD - IAD
2 stops24h 43mAlaska Airlines
Deal found 10/9$1,742
Sun 2/1105:00IAD - SYD
2 stops34h 45mAir New Zealand
Mon 17/1111:45SYD - IAD
2 stops26h 27mAir New Zealand
Deal found 11/9$1,939
Sat 7/320:40DCA - SYD
2 stops43h 55mAir Canada
Sun 15/310:20SYD - DCA
2 stops39h 06mAir Canada
Deal found 11/9$2,149
Fri 27/211:30DCA - SYD
3 stops29h 15mMultiple Airlines
Wed 11/309:55SYD - DCA
2 stops25h 40mMultiple Airlines
Deal found 11/9$2,164
Sun 8/218:55IAD - SYD
2 stops32h 50mAlaska Airlines
Tue 10/321:40SYD - IAD
2 stops35h 15mAlaska Airlines
Deal found 9/9$1,782
Thu 13/1119:16BWI - SYD
2 stops32h 29mAlaska Airlines
Tue 18/1121:40SYD - BWI
2 stops36h 36mAlaska Airlines
Deal found 10/9$1,784
Sun 22/213:00IAD - SYD
2 stops29h 30mAir New Zealand
Sun 1/313:55SYD - IAD
2 stops31h 20mAir New Zealand
Deal found 11/9$1,966
Sun 22/211:30DCA - SYD
3 stops31h 00mMultiple Airlines
Sun 1/309:55SYD - DCA
2 stops27h 00mMultiple Airlines
Deal found 11/9$2,164
Sat 8/1107:38BWI - SYD
2 stops68h 07mAlaska Airlines
Fri 14/1121:40SYD - BWI
2 stops36h 36mAlaska Airlines
Deal found 9/9$1,791
Fri 13/214:15IAD - SYD
2 stops28h 15mAir New Zealand
Sun 1/313:55SYD - IAD
2 stops31h 20mAir New Zealand
Deal found 11/9$2,034
Sat 1/1107:38BWI - SYD
2 stops69h 07mAlaska Airlines
Fri 7/1121:40SYD - BWI
2 stops36h 36mAlaska Airlines
Deal found 11/9$1,793
Fri 6/313:00IAD - SYD
2 stops29h 30mAir New Zealand
Mon 16/313:55SYD - IAD
2 stops30h 20mAir New Zealand
Deal found 11/9$2,134
Last-minute flights from Washington, D.C. to Sydney
Discover last-minute flight deals from Washington, D.C. to Sydney. Data last updated 12 September 2025 and is based on user searches.
Wed 17/916:27BWI - SYD
3 stops29h 18mMultiple Airlines
Tue 23/913:15SYD - BWI
2 stops31h 46mMultiple Airlines
Deal found 10/9$1,975
Wed 17/913:30IAD - SYD
2 stops39h 30mTurkish Airlines
Tue 23/920:55SYD - IAD
2 stops52h 50mTurkish Airlines
Deal found 10/9$2,203
Wed 17/906:30DCA - SYD
2 stops38h 20mCathay Pacific
Tue 23/921:50SYD - DCA
2 stops36h 08mCathay Pacific
Deal found 10/9$2,408
Wed 17/907:00DCA - SYD
2 stops58h 30mMultiple Airlines
Tue 23/917:45SYD - DCA
1 stop41h 14mMultiple Airlines
Deal found 11/9$2,574
Sat 20/919:35DCA - SYD
2 stops36h 35mFiji Airways
Sat 4/1006:00SYD - DCA
2 stops31h 00mFiji Airways
Deal found 10/9$2,022
Sat 20/913:32BWI - SYD
1 stop27h 23mAmerican Airlines
Wed 1/1012:10SYD - BWI
1 stop25h 12mAmerican Airlines
Deal found 11/9$2,167
Sat 20/913:32BWI - SYD
1 stop27h 23mAmerican Airlines
Sat 4/1009:10SYD - BWI
2 stops22h 40mAmerican Airlines
Deal found 10/9$2,171
Sat 20/919:00BWI - SYD
1 stop21h 55mUnited Airlines
Sat 4/1010:20SYD - BWI
1 stop21h 38mUnited Airlines
Deal found 11/9$2,190
Sat 20/913:50BWI - SYD
2 stops26h 45mDelta
Sat 4/1009:25SYD - BWI
2 stops28h 12mDelta
Deal found 11/9$2,197
Sat 20/917:40IAD - SYD
2 stops28h 05mMultiple Airlines
Sat 4/1013:45SYD - IAD
2 stops23h 03mMultiple Airlines
Deal found 11/9$2,286
Sun 21/913:30IAD - SYD
2 stops39h 30mTurkish Airlines
Fri 3/1020:55SYD - IAD
2 stops36h 50mTurkish Airlines
Deal found 10/9$2,171
Sun 21/913:30IAD - SYD
2 stops39h 30mTurkish Airlines
Thu 25/920:55SYD - IAD
2 stops52h 50mTurkish Airlines
Deal found 11/9$2,494
One-way flights from Washington, D.C. to Sydney
Search for one-way flight options from Washington, D.C. to Sydney. Find affordable one-way fares based on user searches. Data last updated 12 September 2025.
Mon 27/1006:15IAD - SYD
2 stops35h 45mMultiple Airlines
Deal found 10/9$730
Mon 8/1206:00IAD - SYD
2 stops35h 00mMultiple Airlines
Deal found 10/9$731
Mon 20/1014:52BWI - SYD
3 stops57h 48mMultiple Airlines
Deal found 10/9$731
Mon 20/1006:15IAD - SYD
2 stops34h 50mMultiple Airlines
Deal found 11/9$746
Mon 20/1018:31DCA - SYD
3 stops54h 09mMultiple Airlines
Deal found 11/9$783
Tue 23/909:15IAD - SYD
2 stops31h 50mMultiple Airlines
Deal found 10/9$820
Mon 19/108:00DCA - SYD
2 stops33h 00mMultiple Airlines
Deal found 11/9$832
Mon 10/1106:00BWI - SYD
3 stops58h 05mMultiple Airlines
Deal found 11/9$838
Mon 17/1106:00BWI - SYD
3 stops58h 05mMultiple Airlines
Deal found 11/9$840
Mon 17/1109:59DCA - SYD
3 stops59h 06mMultiple Airlines
Deal found 11/9$872
Tue 10/217:51IAD - SYD
3 stops45h 34mMultiple Airlines
Deal found 9/9$878
Mon 27/1005:35BWI - SYD
2 stops38h 10mMultiple Airlines
Deal found 11/9$885
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 12 September 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
Tue 11/11
18:13-19:45
2 stops33h 32m
Sydney Kingsford Smith
Tue 18/11
21:40-06:23
2 stops24h 43m
$1,742
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Sun 8/2
18:55-19:45
2 stops32h 50m
Sydney Kingsford Smith
Tue 10/3
21:40-17:55
2 stops35h 15m
$1,782
BaltimoreSydney
BWI - SYD
BWISYD
Baltimore/Washington
Thu 13/11
19:16-19:45
2 stops32h 29m
Sydney Kingsford Smith
Tue 18/11
21:40-18:16
2 stops36h 36m
$1,784
BaltimoreSydney
BWI - SYD
BWISYD
Baltimore/Washington
Sat 8/11
07:38-19:45
2 stops68h 07m
Sydney Kingsford Smith
Fri 14/11
21:40-18:16
2 stops36h 36m
$1,791
BaltimoreSydney
BWI - SYD
BWISYD
Baltimore/Washington
Sat 1/11
07:38-19:45
2 stops69h 07m
Sydney Kingsford Smith
Fri 7/11
21:40-18:16
2 stops36h 36m
$1,793
BaltimoreSydney
BWI - SYD
BWISYD
Baltimore/Washington
Wed 12/11
07:38-19:45
2 stops44h 07m
Sydney Kingsford Smith
Sun 16/11
21:40-18:16
2 stops36h 36m
$1,817
BaltimoreSydney
BWI - SYD
BWISYD
Baltimore/Washington
Wed 5/11
07:38-19:45
2 stops44h 07m
Sydney Kingsford Smith
Sun 9/11
21:40-06:18
2 stops24h 38m
$1,819
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Tue 11/11
18:13-19:45
2 stops33h 32m
Sydney Kingsford Smith
Thu 20/11
21:40-06:18
2 stops48h 38m
$1,822
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Thu 13/11
18:13-19:45
2 stops33h 32m
Sydney Kingsford Smith
Thu 20/11
21:40-06:18
2 stops48h 38m
$1,822
BaltimoreSydney
BWI - SYD
BWISYD
Baltimore/Washington
Fri 31/10
07:38-19:45
2 stops45h 07m
Sydney Kingsford Smith
Fri 7/11
21:40-18:16
2 stops36h 36m
$1,822
Flights are sorted by cheapest return flights first.
Deals found on 11/9
Showing 1-10 of 59 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 29 August 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 12 September 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?
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 52% 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 $1,310.
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 12 September 2025.
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.
Terrible. Bad customer service and unacceptable delay on the tarmac
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 Alaska Airlines fly from Washington, D.C. to Sydney in about 33h 32m. The time it takes to get you to your destination can typically vary by up to . The distance between Washington, D.C. and Sydney is about 15670 km.
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 $2,207.
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, 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.
Explore flights to Sydney departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 September 2025.
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 12 September 2025.
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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