S$1,164 Cheap Flights from Washington to Sydney

View S$1,164 flight on Sun, 24 Aug, 2025Opens in a new window

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

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Cheap Flights from Washington to Sydney (IAD-SYD)

Prices were available within the past 7 days and start at S$1,164 for one-way flights and S$2,042 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, 17 Oct - Sun, 26 Oct
IAD
Washington
SYD
Sydney
S$2,042 Return, found 3 days ago
S$2,042
Return
found 3 days ago
Select United flight, departing Fri, 17 Oct from Washington to Sydney, returning Sun, 26 Oct, priced at S$2,042 found 3 days ago
Turkish Airlines
Fri, 17 Oct - Sun, 26 Oct
IAD
Washington
SYD
Sydney
S$2,061 Return, found 3 days ago
S$2,061
Return
found 3 days ago
Select Turkish Airlines flight, departing Fri, 17 Oct from Washington to Sydney, returning Sun, 26 Oct, priced at S$2,061 found 3 days ago
United
Fri, 17 Oct - Sun, 26 Oct
IAD
Washington
SYD
Sydney
S$2,137 Return, found 3 days ago
S$2,137
Return
found 3 days ago
Select United flight, departing Fri, 17 Oct from Washington to Sydney, returning Sun, 26 Oct, priced at S$2,137 found 3 days ago
Delta
Fri, 17 Oct - Sun, 26 Oct
IAD
Washington
SYD
Sydney
S$2,137 Return, found 3 days ago
S$2,137
Return
found 3 days ago
Select Delta flight, departing Fri, 17 Oct from Washington to Sydney, returning Sun, 26 Oct, priced at S$2,137 found 3 days ago
United
Wed, 20 Aug - Wed, 27 Aug
IAD
Washington
SYD
Sydney
S$2,170 Return, found 20 hours ago
S$2,170
Return
found 20 hours ago
Select United flight, departing Wed, 20 Aug from Washington to Sydney, returning Wed, 27 Aug, priced at S$2,170 found 20 hours ago
Qantas Airways
Wed, 20 Aug - Wed, 27 Aug
IAD
Washington
SYD
Sydney
S$2,200 Return, found 20 hours ago
S$2,200
Return
found 20 hours ago
Select Qantas Airways flight, departing Wed, 20 Aug from Washington to Sydney, returning Wed, 27 Aug, priced at S$2,200 found 20 hours ago
All Nippon Airways
Wed, 20 Aug - Wed, 27 Aug
IAD
Washington
SYD
Sydney
S$2,216 Return, found 20 hours ago
S$2,216
Return
found 20 hours ago
Select All Nippon Airways flight, departing Wed, 20 Aug from Washington to Sydney, returning Wed, 27 Aug, priced at S$2,216 found 20 hours ago
Qantas Airways
Wed, 20 Aug - Wed, 27 Aug
IAD
Washington
SYD
Sydney
S$2,216 Return, found 20 hours ago
S$2,216
Return
found 20 hours ago
Select Qantas Airways flight, departing Wed, 20 Aug from Washington to Sydney, returning Wed, 27 Aug, priced at S$2,216 found 20 hours ago
Qantas Airways
Wed, 20 Aug - Wed, 27 Aug
IAD
Washington
SYD
Sydney
S$2,249 Return, found 20 hours ago
S$2,249
Return
found 20 hours ago
Select Qantas Airways flight, departing Wed, 20 Aug from Washington to Sydney, returning Wed, 27 Aug, priced at S$2,249 found 20 hours ago
American Airlines
Fri, 17 Oct - Sun, 26 Oct
IAD
Washington
SYD
Sydney
S$2,274 Return, found 3 days ago
S$2,274
Return
found 3 days ago
Select American Airlines flight, departing Fri, 17 Oct from Washington to Sydney, returning Sun, 26 Oct, priced at S$2,274 found 3 days ago

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

February is typically the cheapest month to fly

From S$1,055 - S$2,479 per traveller.

Graph displaying average flight prices per month

Washington to Sydney route information
Origin airport
Washington Dulles Intl.
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air New Zealand, American Airlines, Delta, Emirates, Etihad Airways, Korean Air, Qantas Airways, Qatar Airways, Turkish Airlines, United
Return price
S$2,042
Distance
15590 km

Perfect flights from Washington to Sydney

Your Journey from Washington to Sydney

Start your unforgettable journey with Expedia. Our broad selection of flights from Washington to Sydney caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including All Nippon Airways, Qantas Airways, American Airlines, Air Canada, United, Delta, Turkish Airlines. Our selection of flights from Washington Dulles Intl. to Kingsford Smith Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Washington to Sydney Flights

Experience the joy of finding cheap flights from Washington Dulles Intl. to Kingsford Smith Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$1,164 and roundtrip prices from S$2,042*.
 

Pre-Flight Essentials

Ensure a smooth journey from Washington to Sydney with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Sydney

Picture yourself stepping off the plane in Sydney and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Washington to Sydney Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Washington to Sydney.
 

Beyond the Flight – Exploring Sydney

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Book Your Flight from Washington to Sydney with Confidence

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*Note: Prices may vary based on availability and are subject to change.

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 S$2,042. 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.

Explore a world of travel with Expedia

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S$1,955.80

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*Available to Expedia members.