What’s the fastest layover option from Washington, D.C. Dulles Intl Airport to Sydney?

Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 9h 00m.

What’s the cheapest layover airport for flights from Washington, D.C. Dulles Intl Airport to Sydney?

Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $379.

What’s the top layover airport for flights from Washington, D.C. Dulles Intl Airport to Sydney?

Los Angeles (LAX) – chosen by Cheapflights users on 80% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Sydney on Cheapflights.

Which airport typically offers the quickest layover for flights from Washington, D.C. Dulles Intl Airport to Sydney?

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 1h 25m.

How long is the flight from Washington, D.C. Dulles Intl Airport to Sydney?

A quick flight from Washington, D.C. Dulles Intl Airport to Sydney can take about 24h 15m. Turkish Airlines provides one of the quickest options available for as low as $1,641. Washington, D.C. Dulles Intl Airport and Sydney are separated by a distance of 9737 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Sydney round-trip?

Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Sydney is United Airlines. Our recent data shows that you can find tickets from as low as $337 on this airline. Additional options worth looking into are Air Canada and American Airlines, starting at $847 and $855 round-trip. Users have found that United Airlines is 79% cheaper than the other options available to this destination.

In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Sydney?

United Airlines, Air New Zealand and Qantas Airways are the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to Sydney.

Where are the most common layover locations when flying from Washington, D.C. Dulles Intl Airport to Sydney?

Washington, D.C. Dulles Intl Airport to Sydney flights have a layover in Dallas most often.

Where are the least popular layover locations for Washington, D.C. Dulles Intl Airport to Sydney flights?

The least popular layover on flights from Washington, D.C. Dulles Intl Airport to Sydney is Los Angeles.

What are some popular things to do or see while on a layover in Dallas?

American Airlines Center, Dallas World Aquarium, and Reunion Tower are currently the most popular points of interest in Dallas at the moment. American Airlines Center, Dallas World Aquarium, and Reunion Tower are located about 15.0 mi, 15.5 mi, and 15.6 mi, respectively from Dallas/Fort Worth. Travelers in need of a car in Dallas can rent one for about $52 per day.

What is the cheapest time of day to fly from IAD to SYD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Sydney as you normally would.

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Sydney flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Sydney flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Sydney from Washington, D.C. Dulles Intl?

Sydney Kingsford Smith (SYD) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to Sydney. You should not have trouble finding flights to Kingsford Smith from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 5 airlines have flights to the Sydney airport from Washington, D.C. Dulles Intl. It is only a 4.6 mi journey from Kingsford Smith (SYD) to Sydney’s city center.

Can I find deals for flights from Dulles Intl to Sydney that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Sydney?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Sydney.

Can I find deals for business class flights from Dulles Intl to Sydney?

Yes. Cheapflights offers flight deals from Dulles Intl to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$570+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Sydney

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Cheap flight deals from Dulles Intl to Sydney

Cheapest

Best

Last-minute

One-way

Cheapest flights from Dulles Intl to Sydney
Explore the most affordable flight options available from Dulles Intl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.

Sun 9/137:50 am -

3 stops38h 00m

Wed 9/236:15 am -

3 stops42h 12m

Deal found 8/11

$1,043

Wed 9/1611:12 am -

3 stops34h 38m

Wed 9/231:15 pm -

3 stops35h 12m

Deal found 8/11

$1,044

Fri 9/257:50 am -

3 stops48h 35m

Fri 10/21:15 pm -

3 stops33h 23m

Deal found 8/11

$1,049

Wed 9/2311:12 am -

3 stops45h 13m

Wed 9/301:15 pm -

3 stops31h 05m

Deal found 8/9

$1,054

Thu 9/246:00 am -

3 stops74h 25m

Thu 10/11:15 pm -

3 stops55h 05m

Deal found 8/10

$1,162

Wed 9/911:12 am -

2 stops29h 53m

Mon 9/219:10 am -

2 stops39h 07m

Deal found 8/8

$1,216

Wed 9/26:20 am -

2 stops35h 10m

Wed 9/99:10 am -

2 stops29h 00m

Deal found 8/7

$1,222

Tue 9/2211:12 am -

2 stops29h 53m

Tue 9/299:10 am -

2 stops39h 07m

Deal found 8/8

$1,224

Best flights from Dulles Intl to Sydney
Discover carefully curated flight deals from Dulles Intl to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.

Wed 12/301:30 pm -

2 stops37h 55m

Wed 5/129:00 pm -

2 stops52h 35m

Deal found 8/10

$1,558

Tue 12/294:15 pm -

2 stops24h 15m

Wed 1/1310:40 am -

2 stops23h 46m

Deal found 8/10

$1,641

Tue 1/265:38 pm -

2 stops44h 47m

Wed 2/179:25 pm -

3 stops35h 01m

Deal found 8/11

$1,695

Sat 1/165:25 pm -

3 stops34h 20m

Sat 1/239:40 pm -

3 stops37h 21m

Deal found 8/8

$1,734

Wed 9/210:55 am -

1 stop41h 10m

Wed 9/98:45 pm -

1 stop49h 55m

Deal found 8/7

$1,834

Sat 12/54:10 pm -

1 stop25h 10m

Mon 12/1411:20 am -

1 stop20h 53m

Deal found 8/8

$1,858

Wed 1/279:20 pm -

2 stops54h 05m

Sat 2/69:35 pm -

2 stops37h 50m

Deal found 8/10

$1,596

Fri 9/2512:26 pm -

2 stops28h 24m

Mon 10/1910:15 am -

2 stops23h 04m

Deal found 8/10

$1,691

Tue 9/2210:55 am -

1 stop29h 10m

Tue 10/66:00 am -

1 stop41h 40m

Deal found 8/11

$1,835

Wed 10/219:38 am -

3 stops30h 52m

Wed 11/189:25 pm -

3 stops34h 49m

Deal found 8/11

$1,883

Wed 11/410:30 am -

1 stop28h 30m

Sun 11/86:00 am -

1 stop42h 10m

Deal found 8/11

$1,885

Last-minute flights from Dulles Intl to Sydney
Discover last-minute flight deals from Dulles Intl to Sydney. Data last updated August 12, 2026 and is based on user searches.

Wed 9/26:20 am -

2 stops35h 10m

Wed 9/99:10 am -

2 stops29h 00m

Deal found 8/7

$1,222

Wed 9/911:12 am -

2 stops29h 53m

Mon 9/219:10 am -

2 stops39h 07m

Deal found 8/8

$1,216

Sun 9/137:50 am -

3 stops38h 00m

Wed 9/236:15 am -

3 stops42h 12m

Deal found 8/11

$1,043

Wed 9/1611:12 am -

3 stops34h 38m

Wed 9/231:15 pm -

3 stops35h 12m

Deal found 8/11

$1,044

Tue 9/2211:12 am -

2 stops29h 53m

Tue 9/299:10 am -

2 stops39h 07m

Deal found 8/8

$1,224

Wed 9/2311:12 am -

3 stops45h 13m

Wed 9/301:15 pm -

3 stops31h 05m

Deal found 8/9

$1,054

Thu 9/246:00 am -

3 stops74h 25m

Thu 10/11:15 pm -

3 stops55h 05m

Deal found 8/10

$1,162

Fri 9/257:50 am -

3 stops48h 35m

Fri 10/21:15 pm -

3 stops33h 23m

Deal found 8/11

$1,049

One-way flights from Dulles Intl to Sydney
Search for one-way flight options from Dulles Intl to Sydney. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.

Sat 11/77:00 am -

3 stops45h 15m

Deal found 8/10

$570

Tue 11/107:00 am -

3 stops45h 15m

Deal found 8/11

$586

Tue 9/224:36 pm -

3 stops36h 14m

Deal found 8/8

$627

Wed 9/1611:12 am -

2 stops30h 18m

Deal found 8/8

$634

Sat 9/2611:12 am -

2 stops30h 18m

Deal found 8/11

$642

Tue 9/111:05 am -

2 stops30h 25m

Deal found 8/8

$645

Wed 9/911:12 am -

2 stops30h 18m

Deal found 8/10

$646

Sun 8/308:59 am -

2 stops56h 31m

Deal found 8/8

$647

Fri 9/49:54 pm -

2 stops43h 36m

Deal found 8/9

$648

Find flight deals from Dulles Intl to Sydney

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,043 (Trip.com)
One-way from	$570 (Kiwi.com)
Popular in	December
Cheapest in	August
Average price	$1,140

Provider with most accurate pricing for Washington, D.C. Dulles Intl-Sydney Kingsford Smith flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Sydney Kingsford Smith flights.

Search Deals

From Washington, D.C. Dulles Intl to Sydney Kingsford Smith

Search Deals

One-way flight from Washington, D.C. Dulles Intl to Sydney Kingsford Smith

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($206 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($62 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights Fare Finder

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 Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Wed 12/30

1:30 pm-7:25 pm

2 stops37h 55m

Sydney Kingsford Smith

Wed 5/12

9:00 pm-11:35 am

2 stops52h 35m

$1,558

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Wed 1/27

9:20 pm-7:25 pm

2 stops54h 05m

Sydney Kingsford Smith

Sat 2/6

9:35 pm-7:25 pm

2 stops37h 50m

$1,596

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Tue 12/29

4:15 pm-8:30 am

2 stops24h 15m

Sydney Kingsford Smith

Wed 1/13

10:40 am-6:26 pm

2 stops23h 46m

$1,641

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Fri 9/25

12:26 pm-6:50 am

2 stops28h 24m

Sydney Kingsford Smith

Mon 10/19

10:15 am-6:19 pm

2 stops23h 04m

$1,691

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Tue 1/26

5:38 pm-6:25 am

2 stops44h 47m

Sydney Kingsford Smith

Wed 2/17

9:25 pm-4:26 pm

3 stops35h 01m

$1,695

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Sat 1/16

5:25 pm-7:45 pm

3 stops34h 20m

Sydney Kingsford Smith

Sat 1/23

9:40 pm-7:01 pm

3 stops37h 21m

$1,734

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Wed 9/2

10:55 am-6:05 pm

1 stop41h 10m

Sydney Kingsford Smith

Wed 9/9

8:45 pm-8:40 am

1 stop49h 55m

$1,834

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Tue 9/22

10:55 am-6:05 am

1 stop29h 10m

Sydney Kingsford Smith

Tue 10/6

6:00 am-8:40 am

1 stop41h 40m

$1,835

Quickest round-trip

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Sat 12/5

4:10 pm-9:20 am

1 stop25h 10m

Sydney Kingsford Smith

Mon 12/14

11:20 am-4:13 pm

1 stop20h 53m

$1,858

Washington, D.C.Sydney

IAD Washington, D.C. Dulles Intl - SYD Sydney Kingsford Smith

IADSYD

Washington, D.C. Dulles Intl

Wed 10/21

9:38 am-7:30 am

3 stops30h 52m

Sydney Kingsford Smith

Wed 11/18

9:25 pm-4:14 pm

3 stops34h 49m

$1,883

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 19 resultsSorted by cheapest first

Compare providers for flights from Dulles Intl to Sydney

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Sydney in August.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
JustAirTicket	Price Accuracy-	Trust Score*1 star
Cheapfaremart	Price Accuracy-	Trust Score*1 star
Trip.com	Price Accuracy1 star	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Sydney flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Sydney flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Dulles Intl with our price prediction graph.

IAD-SYD

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Sydney

Prices

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Sydney, you should look to book at least 4 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Sydney?

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Sydney (average of $1,140). Flying from Washington, D.C. Dulles Intl Airport to Sydney in December is currently the most expensive (average of $2,322). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Sydney?

Airfare is typical for this route at the moment.

Washington, D.C. Dulles Intl Airport to Sydney flights typically cost between $827 and $1,762 in September.
The cheapest round-trip price found within the last 5 days was $1,043 on Multiple Airlines (Sep 13-Sep 23).

Reviews of airlines servicing Sydney

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Sydney, such as Air New Zealand,Qantas Airways, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Air New Zealand

8.0

Very good

659 reviews

Reviews

1 / 20

10.0

Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.

Air New Zealand

8.0

Very good

659 reviews

Air New Zealand

8.0

Very good

659 reviews

Reviews

1 / 20

10.0

Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.

Qantas Airways

7.5

Good

1,081 reviews

Air New Zealand

8.0

Very good

659 reviews

Reviews

1 / 20

10.0

Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.

United Airlines

7.4

Good

10,104 reviews

Air New Zealand

8.0

Very good

659 reviews

Reviews

1 / 20

10.0

Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.

American Airlines

7.1

Good

11,903 reviews

Air New Zealand

8.0

Very good

659 reviews

Reviews

1 / 20

10.0

Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.

Air Canada

7.1

Good

11,462 reviews

Air New Zealand

8.0

Very good

659 reviews

Reviews

1 / 20

10.0

Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.

Related info for your journey

What airport do you fly into for flights to Sydney from Washington, D.C. Dulles Intl?
Sydney Kingsford Smith (SYD) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to Sydney. You should not have trouble finding flights to Kingsford Smith from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 5 airlines have flights to the Sydney airport from Washington, D.C. Dulles Intl. It is only a 4.6 mi journey from Kingsford Smith (SYD) to Sydney’s city center.
How long is the flight from Washington, D.C. Dulles Intl Airport to Sydney?
A quick flight from Washington, D.C. Dulles Intl Airport to Sydney can take about 24h 15m. Turkish Airlines provides one of the quickest options available for as low as $1,641. Washington, D.C. Dulles Intl Airport and Sydney are separated by a distance of 9737 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Sydney round-trip?
Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Sydney is United Airlines. Our recent data shows that you can find tickets from as low as $337 on this airline. Additional options worth looking into are Air Canada and American Airlines, starting at $847 and $855 round-trip. Users have found that United Airlines is 79% cheaper than the other options available to this destination.
Where are the most common layover locations when flying from Washington, D.C. Dulles Intl Airport to Sydney?
Washington, D.C. Dulles Intl Airport to Sydney flights have a layover in Dallas most often.
What are some popular things to do or see while on a layover in Dallas?
American Airlines Center, Dallas World Aquarium, and Reunion Tower are currently the most popular points of interest in Dallas at the moment. American Airlines Center, Dallas World Aquarium, and Reunion Tower are located about 15.0 mi, 15.5 mi, and 15.6 mi, respectively from Dallas/Fort Worth. Travelers in need of a car in Dallas can rent one for about $52 per day.
Where are the least popular layover locations for Washington, D.C. Dulles Intl Airport to Sydney flights?
The least popular layover on flights from Washington, D.C. Dulles Intl Airport to Sydney is Los Angeles.
Can I find deals for flights from Dulles Intl to Sydney that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Sydney?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Sydney.
Can I find deals for business class flights from Dulles Intl to Sydney?
Yes. Cheapflights offers flight deals from Dulles Intl to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Sydney?
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Sydney (average of $1,140). Flying from Washington, D.C. Dulles Intl Airport to Sydney in December is currently the most expensive (average of $2,322). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Parramatta

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Top 5 airlines flying from Dulles Intl to Sydney

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$337	Average$1,675	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$847	Average$1,559	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$855	Average$1,398	FlexibilityNo cancel fee	On-time71%
Qantas Airways	Cheapest$973	Average$1,507	FlexibilityNo cancel fee	On-time74%
Air New Zealand	Cheapest$1,285	Average$1,808	FlexibilityNo cancel fee	On-time78%

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$570+ Cheap flights from Dulles Intl (IAD) to Sydney (SYD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/7. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Dulles Intl to Sydney

Cheapest flights from Dulles Intl to SydneyExplore the most affordable flight options available from Dulles Intl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.

Explore the most affordable flight options available from Dulles Intl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.

Best flights from Dulles Intl to SydneyDiscover carefully curated flight deals from Dulles Intl to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.

Discover carefully curated flight deals from Dulles Intl to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.

Last-minute flights from Dulles Intl to SydneyDiscover last-minute flight deals from Dulles Intl to Sydney. Data last updated August 12, 2026 and is based on user searches.

Discover last-minute flight deals from Dulles Intl to Sydney. Data last updated August 12, 2026 and is based on user searches.

One-way flights from Dulles Intl to SydneySearch for one-way flight options from Dulles Intl to Sydney. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.

Search for one-way flight options from Dulles Intl to Sydney. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.

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Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Sydney that are best for you.

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Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Sydney in August.

Best time to book a flight from Dulles Intl to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Dulles Intl with our price prediction graph.

Cheapflights Insights

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Sydney?

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Sydney, you should look to book at least 4 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Sydney?

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Sydney?

Airfare is typical for this route at the moment.

Washington, D.C. Dulles Intl Airport to Sydney flights typically cost between $827 and $1,762 in September.The cheapest round-trip price found within the last 5 days was $1,043 on Multiple Airlines (Sep 13-Sep 23).

What’s the top layover airport for flights from Washington, D.C. Dulles Intl Airport to Sydney?

Los Angeles (LAX) – chosen by Cheapflights users on 80% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Sydney on Cheapflights.

What’s the cheapest layover airport for flights from Washington, D.C. Dulles Intl Airport to Sydney?

Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $379.

What’s the fastest layover option from Washington, D.C. Dulles Intl Airport to Sydney?

Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 9h 00m.

Which airport typically offers the quickest layover for flights from Washington, D.C. Dulles Intl Airport to Sydney?

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 1h 25m.

Reviews of airlines servicing Sydney

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Sydney, such as Air New Zealand,Qantas Airways, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly into for flights to Sydney from Washington, D.C. Dulles Intl?

How long is the flight from Washington, D.C. Dulles Intl Airport to Sydney?

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Sydney round-trip?

Where are the most common layover locations when flying from Washington, D.C. Dulles Intl Airport to Sydney?

What are some popular things to do or see while on a layover in Dallas?

Where are the least popular layover locations for Washington, D.C. Dulles Intl Airport to Sydney flights?

Can I find deals for flights from Dulles Intl to Sydney that include hotel bookings?

How can I find direct flights from Dulles Intl to Sydney?

Can I find deals for business class flights from Dulles Intl to Sydney?

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Sydney?

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Alternative routes for Dulles Intl to Sydney

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Dulles Intl and Sydney flights

Browse other Dulles Intl and Sydney flight options. Last updated on August 12, 2026.

Other flights from Dulles Intl

Browse through other flights departing from Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on August 12, 2026.

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Other flights to Sydney

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Top 5 airlines flying from Dulles Intl to Sydney

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Cheapest flights from Dulles Intl to Sydney
Explore the most affordable flight options available from Dulles Intl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.

Best flights from Dulles Intl to Sydney
Discover carefully curated flight deals from Dulles Intl to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.

Last-minute flights from Dulles Intl to Sydney
Discover last-minute flight deals from Dulles Intl to Sydney. Data last updated August 12, 2026 and is based on user searches.

One-way flights from Dulles Intl to Sydney
Search for one-way flight options from Dulles Intl to Sydney. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.

Washington, D.C. Dulles Intl Airport to Sydney flights typically cost between $827 and $1,762 in September.
The cheapest round-trip price found within the last 5 days was $1,043 on Multiple Airlines (Sep 13-Sep 23).