Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. Dulles Intl Airport to Sydney from $541

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Sydney departing on 4/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:07 am - 7:05 am
IAD
-
SYD
29h 58m
2 stops
Multiple Airlines Logo
9:10 am - 10:12 am
SYD
-
IAD
39h 02m
2 stops
$1,155Multiple Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
11:12 am - 7:05 am
IAD
-
SYD
29h 53m
2 stops
Multiple Airlines Logo
9:10 am - 6:42 pm
SYD
-
IAD
47h 32m
2 stops
$1,181Multiple Airlines
Wed, May 6 - Wed, May 13
Multiple Airlines Logo
11:12 am - 7:05 am
IAD
-
SYD
29h 53m
2 stops
Multiple Airlines Logo
9:10 am - 6:42 pm
SYD
-
IAD
47h 32m
2 stops
$1,203Multiple Airlines
Wed, May 6 - Wed, May 13
Air Canada Logo
9:55 am - 7:20 am
IAD
-
SYD
31h 25m
2 stops
Air Canada Logo
9:20 am - 8:29 pm
SYD
-
IAD
25h 09m
2 stops
$1,218Air Canada
Mon, Apr 27 - Mon, May 11
Air Canada Logo
9:55 am - 7:20 am
IAD
-
SYD
31h 25m
2 stops
Air Canada Logo
9:20 am - 8:29 pm
SYD
-
IAD
25h 09m
2 stops
$1,219Air Canada
Mon, Apr 20 - Mon, Apr 27
Air Canada Logo
9:55 am - 7:20 am
IAD
-
SYD
31h 25m
3 stops
Air Canada Logo
9:20 am - 8:29 pm
SYD
-
IAD
25h 09m
2 stops
$1,226Air Canada
Mon, Apr 27 - Mon, May 11
Air Canada Logo
9:55 am - 7:20 am
IAD
-
SYD
31h 25m
3 stops
Air Canada Logo
9:20 am - 8:29 pm
SYD
-
IAD
25h 09m
2 stops
$1,227Air Canada
Mon, Apr 20 - Mon, Apr 27
Multiple Airlines Logo
10:07 pm - 7:20 am
IAD
-
SYD
43h 13m
2 stops
Multiple Airlines Logo
9:20 am - 9:18 pm
SYD
-
IAD
25h 58m
2 stops
$1,285Multiple Airlines
Sat, Apr 18 - Sat, Apr 25
Air Canada Logo
9:55 am - 7:20 am
IAD
-
SYD
31h 25m
3 stops
Air Canada Logo
9:20 am - 11:17 am
SYD
-
IAD
39h 57m
3 stops
$1,296Air Canada
Mon, Apr 20 - Mon, Apr 27
Air Canada Logo
9:00 am - 7:20 am
IAD
-
SYD
32h 20m
2 stops
Air Canada Logo
9:20 am - 8:29 pm
SYD
-
IAD
25h 09m
2 stops
$1,298Air Canada
Thu, Apr 23 - Sat, May 9

Turkish Airlines flights from Washington, D.C. Dulles Intl Airport to Sydney

Our best Turkish Airlines deals on Washington, D.C. Dulles Intl Airport to Sydney flight tickets
Turkish Airlines
May 10
IAD1:20 pmWashington, D.C. Dulles Intl
39h 50m
2 stops
SYD7:10 pmSydney Kingsford Smith
May 19
SYD9:05 pmSydney Kingsford Smith
36h 45m
2 stops
IAD7:50 pmWashington, D.C. Dulles Intl
$1,316
Turkish Airlines
May 10
IAD1:20 pmWashington, D.C. Dulles Intl
39h 50m
2 stops
SYD7:10 pmSydney Kingsford Smith
May 19
SYD9:05 pmSydney Kingsford Smith
36h 45m
2 stops
IAD7:50 pmWashington, D.C. Dulles Intl
$1,317
Turkish Airlines
Apr 14
IAD1:20 pmWashington, D.C. Dulles Intl
39h 50m
2 stops
SYD7:10 pmSydney Kingsford Smith
May 5
SYD9:05 pmSydney Kingsford Smith
52h 30m
2 stops
IAD11:35 amWashington, D.C. Dulles Intl
$1,339

Air Canada flights from Washington, D.C. Dulles Intl Airport to Sydney

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Sydney flight tickets
Air Canada
Apr 27
IAD9:55 amWashington, D.C. Dulles Intl
31h 25m
2 stops
SYD7:20 amSydney Kingsford Smith
May 11
SYD9:20 amSydney Kingsford Smith
25h 09m
2 stops
IAD8:29 pmWashington, D.C. Dulles Intl
$1,218
Air Canada
Apr 20
IAD9:55 amWashington, D.C. Dulles Intl
31h 25m
2 stops
SYD7:20 amSydney Kingsford Smith
Apr 27
SYD9:20 amSydney Kingsford Smith
25h 09m
2 stops
IAD8:29 pmWashington, D.C. Dulles Intl
$1,219
Air Canada
Apr 27
IAD9:55 amWashington, D.C. Dulles Intl
31h 25m
3 stops
SYD7:20 amSydney Kingsford Smith
May 11
SYD9:20 amSydney Kingsford Smith
25h 09m
2 stops
IAD8:29 pmWashington, D.C. Dulles Intl
$1,226

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated March 23, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 5/5

11:07 am-7:05 am

2 stops29h 58m

Sydney Kingsford Smith

Tue 5/12

9:10 am-10:12 am

2 stops39h 02m

$1,155

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 5/6

11:12 am-7:05 am

2 stops29h 53m

Sydney Kingsford Smith

Wed 5/13

9:10 am-6:42 pm

2 stops47h 32m

$1,181

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 5/6

11:12 am-7:05 am

2 stops29h 53m

Sydney Kingsford Smith

Wed 5/13

9:10 am-6:42 pm

2 stops47h 32m

$1,203
Quickest round-trip

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 4/27

9:55 am-7:20 am

2 stops31h 25m

Sydney Kingsford Smith

Mon 5/11

9:20 am-8:29 pm

2 stops25h 09m

$1,218

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 4/20

9:55 am-7:20 am

2 stops31h 25m

Sydney Kingsford Smith

Mon 4/27

9:20 am-8:29 pm

2 stops25h 09m

$1,219

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 4/27

9:55 am-7:20 am

3 stops31h 25m

Sydney Kingsford Smith

Mon 5/11

9:20 am-8:29 pm

2 stops25h 09m

$1,226

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 4/20

9:55 am-7:20 am

3 stops31h 25m

Sydney Kingsford Smith

Mon 4/27

9:20 am-8:29 pm

2 stops25h 09m

$1,227

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sat 4/18

10:07 pm-7:20 am

2 stops43h 13m

Sydney Kingsford Smith

Sat 4/25

9:20 am-9:18 pm

2 stops25h 58m

$1,285

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 4/20

9:55 am-7:20 am

3 stops31h 25m

Sydney Kingsford Smith

Mon 4/27

9:20 am-11:17 am

3 stops39h 57m

$1,296

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Thu 4/23

9:00 am-7:20 am

2 stops32h 20m

Sydney Kingsford Smith

Sat 5/9

9:20 am-8:29 pm

2 stops25h 09m

$1,298

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Sydney from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Sydney?

In general, May is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,268. If you are unable to visit Sydney during the month of May, then departing from Washington, D.C. Dulles Intl Airport during the month March is also very affordable. Most momondo users find prices during this month for around $1,549.

How far in advance should I book a flight to Sydney?

You are more likely to see cheaper flights to Sydney from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,623 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Washington, D.C. Dulles Intl Airport for as low as $655 on momondo.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Sydney flights?

You could potentially save up to 8% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Sydney flight.

How have Washington, D.C. Dulles Intl Airport to Sydney flight prices changed over time?

When to book flights from Washington, D.C. Dulles Intl Airport to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Sydney (IAD to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Sydney

Fastest flight time

28h 45m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Sydney takes 28h 45m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Sydney. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Sydney.
Search flight deals

  • How far is Washington, D.C. Dulles Intl to Sydney Kingsford Smith by plane?

    The straight-line distance from Washington, D.C. Dulles Intl to Sydney Kingsford Smith is 9734.0 mi. Typically, this will take 28h 45m by plane in normal conditions.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Sydney Kingsford Smith Airport are updated daily.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Sydney Kingsford Smith Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Sydney?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Sydney

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Sydney with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $377Free CancellationRating
7.4
9,463 reviews
Search United Airlines flights
DeltaPriceFrom $544Free CancellationRating
7.9
8,318 reviews
Search Delta flights
Air CanadaPriceFrom $854Free CancellationRating
7.1
10,835 reviews
Search Air Canada flights
American AirlinesPriceFrom $855Free CancellationRating
7.1
11,487 reviews
Search American Airlines flights
Qantas AirwaysPriceFrom $898Free CancellationRating
7.5
1,009 reviews
Search Qantas Airways flights
Air New ZealandPriceFrom $1,285Free CancellationRating
8.0
618 reviews
Search Air New Zealand flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Bondi Beach
Katoomba
Wollongong
Penrith
Manly
Randwick
Coogee
Leura
Lithgow
Cronulla
Charlestown
Terrigal
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Sydney?

It is quick and easy to find Washington, D.C. to Sydney flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sydney that suits you.

Can I find flights from Washington, D.C. to Sydney with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Sydney from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Sydney?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Sydney.

I’m not ready to book a flight from Washington, D.C. to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 4/22
Wed 4/29
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia