Cheap Flights from Washington D.C. (IAD) to Sydney (SYD)

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Compare Washington Dulles to Sydney flight deals

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Flight deals from Washington Dulles to Sydney

Looking for a cheap last-minute deal or the best return flight from Washington Dulles Airport to Sydney Airport? If you want to travel next month, return fares start from $1,646. Find the lowest prices on one-way and return tickets right here.

Sydney.$1,644 per passenger.Departing Fri, 14 Aug, returning Fri, 21 Aug.Return flight with Frontier Airlines and Fiji Airways.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Fri, 14 Aug, arriving in Sydney.Inbound indirect flight with Fiji Airways, departs from Sydney on Fri, 21 Aug, arriving in Washington Dulles.Price includes taxes and charges.From $1,644, select.

Sydney.$1,938 per passenger.Departing Fri, 4 Sep, returning Wed, 9 Sep.Return flight with Frontier Airlines and AirAsia X.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Fri, 4 Sep, arriving in Sydney.Inbound indirect flight with AirAsia X, departs from Sydney on Wed, 9 Sep, arriving in Washington Dulles.Price includes taxes and charges.From $1,938, select.

Sydney.$2,045 per passenger.Departing Sat, 22 Aug, returning Mon, 7 Sep.Return flight with Frontier Airlines and Scoot.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Sat, 22 Aug, arriving in Sydney.Inbound indirect flight with Scoot, departs from Sydney on Mon, 7 Sep, arriving in Washington Dulles.Price includes taxes and charges.From $2,045, select.

Sydney.$2,123 per passenger.Departing Tue, 22 Sep, returning Wed, 7 Oct.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Tue, 22 Sep, arriving in Sydney.Inbound indirect flight with Turkish Airlines, departs from Sydney on Wed, 7 Oct, arriving in Washington Dulles.Price includes taxes and charges.From $2,123, select.

Sydney.$2,123 per passenger.Departing Tue, 2 Mar, returning Fri, 12 Mar.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Tue, 2 Mar, arriving in Sydney.Inbound indirect flight with Turkish Airlines, departs from Sydney on Fri, 12 Mar, arriving in Washington Dulles.Price includes taxes and charges.From $2,123, select.

Sydney.$2,124 per passenger.Departing Mon, 2 Nov, returning Mon, 16 Nov.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Dulles on Mon, 2 Nov, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Mon, 16 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $2,124, select.

Sydney.$2,124 per passenger.Departing Sun, 21 Mar, returning Thu, 1 Apr.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Sun, 21 Mar, arriving in Sydney.Inbound indirect flight with Turkish Airlines, departs from Sydney on Thu, 1 Apr, arriving in Washington Dulles.Price includes taxes and charges.From $2,124, select.

Sydney.$2,124 per passenger.Departing Sun, 28 Feb, returning Tue, 16 Mar.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Sun, 28 Feb, arriving in Sydney.Inbound indirect flight with Turkish Airlines, departs from Sydney on Tue, 16 Mar, arriving in Washington Dulles.Price includes taxes and charges.From $2,124, select.

Sydney.$2,124 per passenger.Departing Wed, 14 Oct, returning Tue, 27 Oct.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Dulles on Wed, 14 Oct, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Tue, 27 Oct, arriving in Washington Dulles.Price includes taxes and charges.From $2,124, select.

Sydney.$2,125 per passenger.Departing Wed, 20 Jan, returning Tue, 26 Jan.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Wed, 20 Jan, arriving in Sydney.Inbound indirect flight with Turkish Airlines, departs from Sydney on Tue, 26 Jan, arriving in Washington Dulles.Price includes taxes and charges.From $2,125, select.

Sydney.$2,126 per passenger.Departing Mon, 27 Jul, returning Wed, 5 Aug.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Dulles on Mon, 27 Jul, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Wed, 5 Aug, arriving in Washington Dulles.Price includes taxes and charges.From $2,126, select.

Sydney.$2,132 per passenger.Departing Mon, 1 Feb, returning Sun, 28 Feb.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Dulles on Mon, 1 Feb, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Sun, 28 Feb, arriving in Washington Dulles.Price includes taxes and charges.From $2,132, select.

Sydney.$2,133 per passenger.Departing Wed, 18 Nov, returning Wed, 20 Jan.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Dulles on Wed, 18 Nov, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Wed, 20 Jan, arriving in Washington Dulles.Price includes taxes and charges.From $2,133, select.

Sydney.$2,137 per passenger.Departing Mon, 26 Oct, returning Tue, 10 Nov.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Dulles on Mon, 26 Oct, arriving in Sydney.Inbound indirect flight with Air Canada, departs from Sydney on Tue, 10 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $2,137, select.

Sydney.$2,205 per passenger.Departing Sun, 6 Dec, returning Thu, 10 Dec.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Sun, 6 Dec, arriving in Sydney.Inbound indirect flight with Turkish Airlines, departs from Sydney on Thu, 10 Dec, arriving in Washington Dulles.Price includes taxes and charges.From $2,205, select.

Sydney.$2,219 per passenger.Departing Thu, 31 Dec, returning Sun, 31 Jan.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Thu, 31 Dec, arriving in Sydney.Inbound indirect flight with Turkish Airlines, departs from Sydney on Sun, 31 Jan, arriving in Washington Dulles.Price includes taxes and charges.From $2,219, select.

Find the cheapest month to fly from Washington Dulles to Sydney

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Sydney flights are currently cheapest in August.

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Washington Dulles to Sydney: Alternative routes

Compare routes from Washington Dulles to Sydney below. You may find an airport to fly into that's cheaper, faster, or easier than Sydney.

Sydney

9km from central Sydney

ClosestCheapest

from $1,646

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Wollongong

86km from central Sydney

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Washington D.C. to Sydney: Flight information

The things to know before you go.

Cheapest flight found	$1,644
Cheapest month to fly	August

Finding cheap flights from Washington Dulles to Sydney: Frequently asked questions

How much are return flights from Washington Dulles to Sydney?

The best price we found for a return flight from Washington Dulles to Sydney is $1,646. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Washington Dulles to Sydney?

Currently, there are no airlines that fly direct from Washington Dulles to Sydney. But we found flights with one or more stops from $1,644.

How many flights are there a week from Washington Dulles to Sydney?

As of July 2026, there are no flights flying from Washington Dulles to Sydney.

When is the cheapest time to fly from Washington Dulles to Sydney?

The cheapest month to fly from Washington Dulles to Sydney is usually August.

Which upcoming date is cheapest to fly from Washington Dulles Airport to Sydney Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Sydney Airport on Friday, 14 August 2026.

Can I get a direct flight from Washington Dulles Airport to Sydney Airport?

No airlines currently offer direct flights between Washington Dulles Airport and Sydney Airport. Most routes have one or more stops.

How can I find the best flight deal to Sydney?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sydney but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Sydney?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sydney is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Washington Dulles Airport to Sydney with?

Currently, Frontier Airlines offers the cheapest flight tickets to Sydney.

Flying from Washington Dulles Airport (IAD) to Sydney Airport (SYD): what you need to know

Sydney is 16 hours ahead of Washington DC and follows the UTC+11 timezone.
For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to catch your IAD to SYD flight.
You'll likely experience bigger queues during popular months such as July. Arriving up to four hours ahead of an international flight and two hours for a domestic departure is a good idea.
We make it a breeze to book a flight with a stopover. To see your options for tickets from Washington Dulles Airport to Sydney Airport, uncheck 'Direct flights only.' Then, choose a flight with a stop long enough to explore the city of your choice. Top stopovers between IAD and SYD include:
- Los Angeles International Airport
- Houston George Bush Intercntl. Airport
- San Francisco International Airport

How to find the cheapest flights from Washington Dulles Airport (IAD) to Sydney Airport (SYD)

The cheapest price we've found for a one-way Washington Dulles Airport to Sydney Airport flight is $907. A round-trip ticket right now is $1,646. Depending on the availability when you book, these fares may change.
It's usually best to book as early as possible if you're hoping to get cheap tickets from IAD to SYD. That's because airlines adjust prices based on demand, which tends to increase closer to the date of departure.
The 'Whole month' tool shows you the cheapest flights from Washington Dulles Airport to Sydney Airport across each month. It's a great way to snap up a bargain if your travel plans aren't set in stone.
Snapping up cheap flights from IAD to SYD couldn't be easier with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as fares go down.
Tailor your trip using filters. Select your ideal departure and arrival times, airlines and total journey duration. You can also sort the results by 'Cheapest,' 'Fastest' or 'Best' flights from Washington Dulles Airport to Sydney Airport.

Handy information about Washington Dulles Airport (IAD)

The address for IAD is 1 Saarinen Circle.
When it comes to the on-time performance of Washington Dulles Airport, 77% of flights meet their scheduled arrival time.
Washington Dulles Airport is about 40 kilometres from central Washington DC. If you're catching a taxi, ride-sharing or driving from the centre, it'll take 45 minutes or so to arrive, depending on the traffic.
Expect a trip time of about 1 hour 10 minutes on public transport.
Get your holiday off to a leisurely start by staying near IAD. Whether you're boarding an early flight from Washington Dulles Airport to Sydney Airport or just don't want to be rushed, these stays are perfect:

Arriving at Sydney Airport (SYD)

If you're getting in on a late Washington Dulles Airport to Sydney Airport flight, few things top the convenience of staying close to the terminal. Pick up your bags from the carousel and then be tucked up in bed soon after at one of these hotels near SYD:
Go where the road takes you with a Sydney Airport rental car. Pick up a set of wheels from simba car rental, Bargain Car Rentals or Yes Drive and see more of Sydney and beyond.
For the lowest price, reserve your vehicle from Sydney Airport around two weeks before you travel.

Getting from Sydney Airport (SYD) to central Sydney

From Sydney Airport, Sydney is approximately 8 kilometres away. It takes around 20 minutes to reach the centre by car.
When travelling by public transport, expect a journey time of about 15 minutes.

When to fly to Sydney Airport (SYD)

The quietest month for a flight from Washington Dulles Airport to Sydney Airport is March, while July is the most popular. Choose the ideal time to visit Sydney based on whether you prefer a bustling atmosphere or a more laid-back vibe.
Book your flight from Washington Dulles Airport to Sydney Airport for January if you'd like to go to Sydney during its warmest month. Expect temperatures of between 17ºC (63ºF) and 32ºC (90ºF).
Look for cheap tickets from IAD to SYD in July if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between 5ºC (41ºF) and 19ºC (66ºF) on average.

Explore more of Australia

Sydney is easy to fall in love with, but there are so many other parts of Australia just waiting to be explored. About 241 kilometres south-west of Sydney, a visit to Canberra will keep you on the go. Check out popular attractions like National Gallery of Australia, National Portrait Gallery and Museum of Australian Democracy.
Around 121 kilometres north-east of Sydney, Newcastle is another favourite stop in Australia. Experience this destination's highlights firsthand at Merewether Beach, Nobbys Beach and Newcastle Beach.