฿35,420 Cheap Flights from Washington (IAD) to Sydney (SYD)

View ฿35,420 flight on Thu, 27 Nov 2025Opens in a new window

Popular airlines from Washington Dulles International Airport (IAD) to Sydney Airport (SYD)

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Cheap Flights from Washington (IAD) to Sydney (SYD)

Prices were available within the past 7 days and start at ฿35,420 for one-way flights and ฿38,285 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, 27 Nov - Thu, 11 Dec
IAD
Washington
SYD
Sydney
฿38,285 Return, found 6 days ago
฿38,285
Return
found 6 days ago
Select Air Canada flight, departing Thu, 27 Nov from Washington to Sydney, returning Thu, 11 Dec, priced at ฿38,285 found 6 days ago
Delta
Wed, 19 Nov - Wed, 26 Nov
IAD
Washington
SYD
Sydney
฿41,400 Return, found 5 days ago
฿41,400
Return
found 5 days ago
Select Delta flight, departing Wed, 19 Nov from Washington to Sydney, returning Wed, 26 Nov, priced at ฿41,400 found 5 days ago
United
Thu, 27 Nov - Thu, 11 Dec
IAD
Washington
SYD
Sydney
฿44,665 Return, found 6 days ago
฿44,665
Return
found 6 days ago
Select United flight, departing Thu, 27 Nov from Washington to Sydney, returning Thu, 11 Dec, priced at ฿44,665 found 6 days ago
United
Wed, 19 Nov - Wed, 26 Nov
IAD
Washington
SYD
Sydney
฿44,685 Return, found 5 days ago
฿44,685
Return
found 5 days ago
Select United flight, departing Wed, 19 Nov from Washington to Sydney, returning Wed, 26 Nov, priced at ฿44,685 found 5 days ago
American Airlines
Wed, 19 Nov - Wed, 26 Nov
IAD
Washington
SYD
Sydney
฿46,605 Return, found 5 days ago
฿46,605
Return
found 5 days ago
Select American Airlines flight, departing Wed, 19 Nov from Washington to Sydney, returning Wed, 26 Nov, priced at ฿46,605 found 5 days ago
United
Thu, 27 Nov - Thu, 11 Dec
IAD
Washington
SYD
Sydney
฿47,135 Return, found 6 days ago
฿47,135
Return
found 6 days ago
Select United flight, departing Thu, 27 Nov from Washington to Sydney, returning Thu, 11 Dec, priced at ฿47,135 found 6 days ago
United
Wed, 19 Nov - Wed, 26 Nov
IAD
Washington
SYD
Sydney
฿47,155 Return, found 5 days ago
฿47,155
Return
found 5 days ago
Select United flight, departing Wed, 19 Nov from Washington to Sydney, returning Wed, 26 Nov, priced at ฿47,155 found 5 days ago
United
Thu, 27 Nov - Thu, 11 Dec
IAD
Washington
SYD
Sydney
฿47,960 Return, found 6 days ago
฿47,960
Return
found 6 days ago
Select United flight, departing Thu, 27 Nov from Washington to Sydney, returning Thu, 11 Dec, priced at ฿47,960 found 6 days ago
American Airlines
Wed, 19 Nov - Wed, 26 Nov
IAD
Washington
SYD
Sydney
฿49,885 Return, found 5 days ago
฿49,885
Return
found 5 days ago
Select American Airlines flight, departing Wed, 19 Nov from Washington to Sydney, returning Wed, 26 Nov, priced at ฿49,885 found 5 days ago
Turkish Airlines
Wed, 19 Nov - Wed, 26 Nov
IAD
Washington
SYD
Sydney
฿50,075 Return, found 5 days ago
฿50,075
Return
found 5 days ago
Select Turkish Airlines flight, departing Wed, 19 Nov from Washington to Sydney, returning Wed, 26 Nov, priced at ฿50,075 found 5 days ago
United
Wed, 19 Nov - Wed, 26 Nov
IAD
Washington
SYD
Sydney
฿50,455 Return, found 5 days ago
฿50,455
Return
found 5 days ago
Select United flight, departing Wed, 19 Nov from Washington to Sydney, returning Wed, 26 Nov, priced at ฿50,455 found 5 days ago
Air New Zealand
Thu, 27 Nov - Thu, 11 Dec
IAD
Washington
SYD
Sydney
฿51,450 Return, found 6 days ago
฿51,450
Return
found 6 days ago
Select Air New Zealand flight, departing Thu, 27 Nov from Washington to Sydney, returning Thu, 11 Dec, priced at ฿51,450 found 6 days ago

Find the cheapest month to fly from Washington (IAD) to Sydney (SYD)

February is typically the cheapest month to fly

From ฿26,930 - ฿62,851 per traveller.

Alternative airports near Sydney

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Kingsford Smith Intl. SYD. Cheapest option available. Average driving time to city centre is 16 minutes. Flights from ฿41,400
SYD
Kingsford Smith Intl.
Cheapest
Average driving time to city centre16 min
Flights from ฿41,400
Flight from Washington to Sydney route information
Origin airport
Washington Dulles Intl.
Destination airport
Kingsford Smith Intl.
Return price
฿38,285
Distance
15590 km

Perfect flights from Washington to Sydney

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Washington to Sydney. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Washington Dulles Intl. to Kingsford Smith Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿35,420 and roundtrip prices from ฿38,285. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Kingsford Smith Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Sydney.

Frequently asked questions

How much is a flight from IAD to Kingsford Smith Intl. Airport (SYD)?
Round-trip tickets from Washington Dulles Intl. Airport (IAD) to Kingsford Smith Intl. Airport (SYD) start from ฿38,285. This price is based on fares offered within the last 7 days on Expedia for flights departing within the next year — book ASAP so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Dulles Intl. Airport to Kingsford Smith Intl. Airport (SYD)?
This can differ between air carriers, as each has its own set of terms and conditions. Head to the Customer Service Portal, where you'll find instructions on how to cancel online.
How do I find cheap flights from IAD to SYD that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Dulles Intl. Airport to Mascot Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from IAD to Kingsford Smith Intl. Airport (SYD)?
The distance is around 15,700 kilometres. Eye mask? Check. Warm clothes? Check. You'd be wise to pack all the essentials for this long-haul Chantilly to Sydney flight.
Which airlines fly direct from Dulles Intl. Airport to Sydney Airport?
There are no direct flights, so you'll need to make at least one stop between Dulles Intl. Airport and Mascot Airport. Use the layover time to stretch your legs and take a break.
Are Washington Dulles Intl. Airport (IAD) to Mascot Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from IAD to SYD at the last minute could be your ticket to a cheap deal. However, you might miss out on a flight altogether! If you'd prefer not to take any chances, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains as far ahead as 12 months in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated all the time on Expedia.

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