S$1,166 Cheap Flights from Washington to Sydney

View S$1,166 flight on Wed, 8 Oct, 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$1,166 for one-way flights and S$1,842 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air New Zealand
Mon, 11 Aug - Mon, 18 Aug
IAD
Washington
SYD
Sydney
S$1,842 Return, found 3 days ago
S$1,842
Return
found 3 days ago
Select Air New Zealand flight, departing Mon, 11 Aug from Washington to Sydney, returning Mon, 18 Aug, priced at S$1,842 found 3 days ago
Air New Zealand
Sat, 16 Aug - Mon, 25 Aug
IAD
Washington
SYD
Sydney
S$1,871 Return, found 5 hours ago
S$1,871
Return
found 5 hours ago
Select Air New Zealand flight, departing Sat, 16 Aug from Washington to Sydney, returning Mon, 25 Aug, priced at S$1,871 found 5 hours ago
Air New Zealand
Sat, 16 Aug - Mon, 25 Aug
IAD
Washington
SYD
Sydney
S$1,901 Return, found 5 hours ago
S$1,901
Return
found 5 hours ago
Select Air New Zealand flight, departing Sat, 16 Aug from Washington to Sydney, returning Mon, 25 Aug, priced at S$1,901 found 5 hours ago
Air New Zealand
Mon, 11 Aug - Mon, 18 Aug
IAD
Washington
SYD
Sydney
S$1,906 Return, found 3 days ago
S$1,906
Return
found 3 days ago
Select Air New Zealand flight, departing Mon, 11 Aug from Washington to Sydney, returning Mon, 18 Aug, priced at S$1,906 found 3 days ago
Air New Zealand
Mon, 11 Aug - Mon, 18 Aug
IAD
Washington
SYD
Sydney
S$2,048 Return, found 3 days ago
S$2,048
Return
found 3 days ago
Select Air New Zealand flight, departing Mon, 11 Aug from Washington to Sydney, returning Mon, 18 Aug, priced at S$2,048 found 3 days ago
Air New Zealand
Mon, 11 Aug - Mon, 18 Aug
IAD
Washington
SYD
Sydney
S$2,078 Return, found 3 days ago
S$2,078
Return
found 3 days ago
Select Air New Zealand flight, departing Mon, 11 Aug from Washington to Sydney, returning Mon, 18 Aug, priced at S$2,078 found 3 days ago
All Nippon Airways
Sat, 16 Aug - Mon, 25 Aug
IAD
Washington
SYD
Sydney
S$2,409 Return, found 5 hours ago
S$2,409
Return
found 5 hours ago
Select All Nippon Airways flight, departing Sat, 16 Aug from Washington to Sydney, returning Mon, 25 Aug, priced at S$2,409 found 5 hours ago
Etihad Airways
Sat, 16 Aug - Mon, 25 Aug
IAD
Washington
SYD
Sydney
S$2,447 Return, found 5 hours ago
S$2,447
Return
found 5 hours ago
Select Etihad Airways flight, departing Sat, 16 Aug from Washington to Sydney, returning Mon, 25 Aug, priced at S$2,447 found 5 hours ago
American Airlines
Sat, 16 Aug - Mon, 25 Aug
IAD
Washington
SYD
Sydney
S$2,685 Return, found 5 hours ago
S$2,685
Return
found 5 hours ago
Select American Airlines flight, departing Sat, 16 Aug from Washington to Sydney, returning Mon, 25 Aug, priced at S$2,685 found 5 hours ago
Qatar Airways
Sat, 16 Aug - Mon, 25 Aug
IAD
Washington
SYD
Sydney
S$2,853 Return, found 5 hours ago
S$2,853
Return
found 5 hours ago
Select Qatar Airways flight, departing Sat, 16 Aug from Washington to Sydney, returning Mon, 25 Aug, priced at S$2,853 found 5 hours ago

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

February is typically the cheapest month to fly

From S$1,059 - S$2,494 per traveller.

Graph displaying average flight prices per month

Washington to Sydney route information
Origin airport
Washington Dulles Intl.
Destination airport
Kingsford Smith Intl.
Return price
S$1,842
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, American Airlines, United, Air New Zealand, Qantas Airways, Etihad Airways, Qatar Airways. 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$1,166 and roundtrip prices from S$1,842*.
 

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

With Expedia, your adventure extends beyond the flight. Explore Sydney at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Washington to Sydney with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Washington to Sydney with confidence. Book your travel arrangements with Expedia today.
 
*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$1,842. 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$2,156.20

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*Available to Expedia members.