Cheap flights from Washington, D.C. Dulles Intl Airport to Sydney from $639
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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SYD
19 Feb — 26 Feb1
Return
1 adult
Economy
The best prices from Washington, D.C. Dulles Intl to Sydney Kingsford Smith are usually found in February or April, booked 80 days in advance, depart on a Tuesday or Saturday and return on a Friday
Cheap flight deals from Dulles Intl to Sydney
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 14 February 2025.
Explore the most affordable flight options available from Dulles Intl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 February 2025.
Tue 25/213:48IAD - SYD
2 stops24h 47mAmerican Airlines
Mon 3/311:50SYD - IAD
2 stops28h 03mAmerican Airlines
Deal found 12/2$1,339
Mon 10/317:20IAD - SYD
1 stop22h 15mQantas Airways
Tue 18/311:50SYD - IAD
1 stop19h 30mQantas Airways
Deal found 11/2$1,363
Sun 23/217:13IAD - SYD
2 stops25h 07mMultiple Airlines
Fri 28/311:50SYD - IAD
2 stops36h 00mMultiple Airlines
Deal found 11/2$1,400
Sun 15/613:00IAD - SYD
2 stops27h 35mDelta
Wed 30/709:25SYD - IAD
2 stops23h 23mDelta
Deal found 12/2$1,466
Tue 26/817:10IAD - SYD
2 stops25h 35mAir New Zealand
Wed 3/909:55SYD - IAD
2 stops28h 29mAir New Zealand
Deal found 13/2$1,897
Tue 26/817:30IAD - SYD
1 stop23h 50mAir Canada
Wed 3/909:20SYD - IAD
1 stop20h 59mAir Canada
Deal found 13/2$2,117
Mon 17/322:25IAD - SYD
2 stops53h 40mTurkish Airlines
Fri 21/321:00SYD - IAD
2 stops55h 05mTurkish Airlines
Deal found 11/2$2,258
Best flights from Dulles Intl to Sydney
Discover carefully curated flight deals from Dulles Intl to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 February 2025.
Tue 25/213:48IAD - SYD
2 stops24h 47mAmerican Airlines
Mon 3/311:50SYD - IAD
2 stops28h 03mAmerican Airlines
Deal found 12/2$1,339
Mon 10/317:20IAD - SYD
1 stop22h 15mQantas Airways
Tue 18/311:50SYD - IAD
1 stop19h 30mQantas Airways
Deal found 11/2$1,363
Sun 23/217:13IAD - SYD
2 stops25h 07mMultiple Airlines
Fri 28/311:50SYD - IAD
2 stops36h 00mMultiple Airlines
Deal found 11/2$1,400
Sun 15/613:00IAD - SYD
2 stops27h 35mDelta
Wed 30/709:25SYD - IAD
2 stops23h 23mDelta
Deal found 12/2$1,466
Mon 5/509:00IAD - SYD
2 stops33h 45mAir New Zealand
Mon 12/509:55SYD - IAD
2 stops29h 14mAir New Zealand
Deal found 13/2$1,897
Tue 1/709:55IAD - SYD
2 stops31h 25mAir Canada
Tue 15/709:20SYD - IAD
1 stop21h 07mAir Canada
Deal found 12/2$2,117
Mon 17/322:25IAD - SYD
2 stops53h 40mTurkish Airlines
Fri 21/321:00SYD - IAD
2 stops55h 05mTurkish Airlines
Deal found 11/2$2,258
Last-minute flights from Dulles Intl to Sydney
Discover last-minute flight deals from Dulles Intl to Sydney. Data last updated 14 February 2025 and is based on user searches.
Tue 18/210:30IAD - SYD
1 stop44h 00mEmirates
Fri 28/306:00SYD - IAD
1 stop42h 00mEmirates
Deal found 11/2$3,943
Wed 19/217:18IAD - SYD
3 stops34h 27mAlaska Airlines
Thu 6/321:40SYD - IAD
2 stops34h 38mAlaska Airlines
Deal found 13/2$2,568
Wed 19/218:17IAD - SYD
1 stop22h 58mUnited Airlines
Tue 25/311:20SYD - IAD
1 stop22h 36mUnited Airlines
Deal found 13/2$2,952
Thu 20/221:25IAD - SYD
2 stops53h 40mTurkish Airlines
Tue 25/321:00SYD - IAD
2 stops38h 30mTurkish Airlines
Deal found 13/2$2,285
Fri 21/209:12IAD - SYD
2 stops30h 13mAmerican Airlines
Fri 28/311:15SYD - IAD
2 stops27h 43mAmerican Airlines
Deal found 11/2$2,615
Sat 22/217:13IAD - SYD
2 stops25h 37mQantas Airways
Thu 6/311:50SYD - IAD
1 stop20h 32mQantas Airways
Deal found 12/2$1,460
Sat 22/208:24IAD - SYD
3 stops33h 11mAir Canada
Thu 6/311:20SYD - IAD
2 stops25h 21mAir Canada
Deal found 12/2$2,700
Sun 23/217:13IAD - SYD
2 stops25h 07mMultiple Airlines
Fri 28/311:50SYD - IAD
2 stops36h 00mMultiple Airlines
Deal found 11/2$1,400
Sun 23/210:03IAD - SYD
2 stops28h 47mDelta
Wed 26/310:05SYD - IAD
2 stops28h 44mDelta
Deal found 11/2$1,487
Sun 23/218:17IAD - SYD
1 stop22h 58mAir New Zealand
Sat 22/311:45SYD - IAD
2 stops24h 18mAir New Zealand
Deal found 12/2$2,702
Sun 23/220:05IAD - SYD
1 stop30h 45mQatar Airways
Mon 31/321:45SYD - IAD
1 stop32h 55mQatar Airways
Deal found 13/2$3,860
Sun 23/221:30IAD - SYD
1 stop29h 05mEtihad Airways
Sat 22/321:30SYD - IAD
1 stop34h 55mEtihad Airways
Deal found 11/2$4,011
One-way flights from Dulles Intl to Sydney
Search for one-way flight options from Dulles Intl to Sydney. Find affordable one-way fares based on user searches. Data last updated 14 February 2025.
Thu 10/414:12IAD - SYD
2 stops26h 23mAmerican Airlines
Deal found 12/2$639
Sun 30/317:20IAD - SYD
1 stop22h 35mQantas Airways
Deal found 13/2$647
Sun 4/508:01IAD - SYD
3 stops37h 44mMultiple Airlines
Deal found 11/2$852
Sun 15/617:20IAD - SYD
1 stop24h 00mAir Canada
Deal found 12/2$1,225
Sun 4/512:15IAD - SYD
1 stop31h 10mANA
Deal found 11/2$1,276
Mon 14/409:00IAD - SYD
1 stop32h 00mUnited Airlines
Deal found 12/2$1,430
Fri 14/317:18IAD - SYD
2 stops35h 27mAlaska Airlines
Deal found 12/2$1,436
Fri 14/311:00IAD - SYD
1 stop41h 00mAir India
Deal found 12/2$1,544
Sat 22/220:05IAD - SYD
1 stop30h 45mQatar Airways
Deal found 13/2$2,258
Sun 16/318:10IAD - SYD
1 stop24h 05mLufthansa
Deal found 12/2$2,877
Wed 12/317:55IAD - SYD
1 stop24h 10mAir New Zealand
Deal found 12/2$8,108
Find flights from Dulles Intl to Sydney within your budget
Customise your flight search to find flights from Dulles Intl 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 14 February 2025.
Fly from
Dulles Intl
Fly to
Sydney
Route
Depart
Return
Price
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Tue 25/2
13:48-06:35
2 stops24h 47m
Sydney Kingsford Smith
Mon 3/3
11:50-23:53
2 stops28h 03m
$1,339
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Mon 10/3
17:20-06:35
1 stop22h 15m
Sydney Kingsford Smith
Tue 18/3
11:50-16:20
1 stop19h 30m
$1,363
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Sun 23/2
17:13-10:20
2 stops25h 07m
Sydney Kingsford Smith
Fri 28/3
11:50-08:50
2 stops36h 00m
$1,400
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Sun 15/6
13:00-06:35
2 stops27h 35m
Sydney Kingsford Smith
Wed 30/7
09:25-18:48
2 stops23h 23m
$1,466
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Mon 5/5
09:00-08:45
2 stops33h 45m
Sydney Kingsford Smith
Mon 12/5
09:55-01:09
2 stops29h 14m
$1,897
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Tue 1/7
09:10-07:20
2 stops32h 10m
Sydney Kingsford Smith
Tue 15/7
09:20-16:27
1 stop21h 07m
$2,117
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Mon 17/3
22:25-19:05
2 stops53h 40m
Sydney Kingsford Smith
Fri 21/3
21:00-13:05
2 stops55h 05m
$2,258
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Thu 10/4
14:12-06:35
2 stops26h 23m
$639
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Sun 30/3
17:20-06:55
1 stop22h 35m
$647
Washington, D.C.Sydney
IAD - SYD
IADSYD
Washington, D.C. Dulles Intl
Sun 4/5
08:01-11:45
3 stops37h 44m
$852
Flights are sorted by cheapest return flights first.
Deals found on 12/2
Showing 1-10 of 18 results
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Best time to book a flight from Dulles Intl to Sydney
Have a flexible travel schedule? Discover the best time to fly to Sydney from Dulles Intl 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.
Travel insights for flights from Dulles Intl to Sydney
Get recent, data-driven insights about flights from Dulles Intl to Sydney including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Sydney?
Use this chart to determine the optimal time to book a return flight from Dulles Intl to Sydney. Price data was last updated on 7 February 2025.
The best time to book flights from Washington, D.C. Dulles Intl Airport to Sydney is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Sydney?
Currently, May is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Sydney (average of $129). Flying from Washington, D.C. Dulles Intl Airport 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 IAD to SYD?
Find hourly flight availability from Dulles Intl 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 14 February 2025.
When flying from Washington, D.C. Dulles Intl Airport to Sydney, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 33% versus a flight in the afternoon.
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 14 February 2025.
Get a feel of what it's like to fly with ANA, Alaska Airlines and Delta from Washington, D.C. to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Great experience! Affordable economy seat with plenty of leg room, foot rest, nice meal, entertainment and excellent flight attendants!
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl?
If you book a flight to Sydney from Washington, D.C. Dulles Intl, 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. Dulles Intl to Kingsford Smith per day from 2 different airlines.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Sydney round-trip?
Currently priced at $1,339, American Airlines will fly you from Washington, D.C. Dulles Intl Airport to Sydney and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Qantas Airways and Delta - these airlines can fly you to your destination from $1,363 and $1,466, respectively. Users have found that American Airlines is 37% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Sydney one-way?
The cheapet airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Sydney are American Airlines ($639), Qantas Airways ($647), and Air Canada ($1,225).
Can I find deals for flights from Dulles Intl to Sydney that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Sydney?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Sydney.
Can I find deals for business class flights from Dulles Intl to Sydney?
Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Sydney?
Currently, May is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Sydney (average of $129). Flying from Washington, D.C. Dulles Intl Airport 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.