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

A quick flight from Sydney to Washington, D.C. Dulles Intl Airport can take about 24h 51m. United Airlines provides one of the quickest options available for as low as $1,182. Airlines will cover 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 is the cheapest airline to fly from Sydney to Washington, D.C. Dulles Intl Airport round-trip?

Flying on United Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $885. This flight start at 29% lower than the current average price 3 months from now.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

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

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

Most trusted provider : When it comes to deals on Sydney-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Sydney-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Located just 4.6 mi from the city center, Sydney Kingsford Smith is the airport most travelers will use when flying to Washington, D.C. Dulles Intl from Sydney. Booking flights from Kingsford Smith (SYD) to Washington, D.C. Dulles Intl should be relatively easy as there are 0 daily outbound flights to Washington, D.C. Dulles Intl from 1 airline.

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

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

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

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

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

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

$721+ Flights from Sydney to Washington, D.C. Dulles Intl Airport

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

Airfare is typical for this route at the moment. Sydney to Washington, D.C. Dulles Intl Airport flights typically cost between $1,082 and $1,930 in January. The cheapest round-trip price found within the last 3 days was $1,122 on Air New Zealand (Jan 25-Feb 1).

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Cheapflights Tip: The best prices from Sydney Kingsford Smith to Washington, D.C. Dulles Intl are usually found in November or March, booked 78 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Sydney to Dulles Intl

Cheapest flights from Sydney to Dulles Intl
Explore the most affordable flight options available from Sydney to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Sat 12/2711:50 amSYD - IAD

1 stop20h 38mUnited Airlines

Sat 1/107:45 pmIAD - SYD

1 stop42h 35mUnited Airlines

Deal found 12/11

$1,233

Mon 12/298:40 pmSYD - IAD

1 stop37h 50mAir China

Tue 1/610:00 pmIAD - SYD

1 stop49h 30mAir China

Deal found 12/10

$1,314

Wed 12/3111:50 amSYD - IAD

2 stops27h 16mUnited Airlines

Wed 1/143:19 pmIAD - SYD

1 stop25h 46mUnited Airlines

Deal found 12/10

$1,477

Mon 12/2911:20 amSYD - IAD

1 stop21h 02mUnited Airlines

Tue 1/64:11 pmIAD - SYD

2 stops24h 54mUnited Airlines

Deal found 12/10

$1,774

Tue 12/3010:40 amSYD - IAD

2 stops29h 17mDelta

Wed 1/79:00 amIAD - SYD

2 stops31h 30mDelta

Deal found 12/11

$1,776

Sat 12/202:00 pmSYD - IAD

1 stop27h 07mUnited Airlines

Thu 1/152:10 pmIAD - SYD

1 stop27h 05mUnited Airlines

Deal found 12/10

$1,796

Sun 12/2812:10 pmSYD - IAD

1 stop24h 45mUnited Airlines

Sun 1/43:22 pmIAD - SYD

1 stop22h 58mUnited Airlines

Deal found 12/10

$1,831

Wed 12/105:45 pmSYD - IAD

2 stops38h 23mAmerican Airlines

Sun 12/146:00 amIAD - SYD

1 stop32h 55mAmerican Airlines

Deal found 12/9

$1,880

Best flights from Sydney to Dulles Intl
Discover carefully curated flight deals from Sydney to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

Mon 1/1211:20 amSYD - IAD

2 stops25h 29mUnited Airlines

Mon 1/264:10 pmIAD - SYD

1 stop22h 10mUnited Airlines

Deal found 12/9

$1,181

Mon 1/262:15 pmSYD - IAD

2 stops24h 51mDelta

Mon 2/93:42 pmIAD - SYD

2 stops24h 48mDelta

Deal found 12/9

$1,182

Mon 1/128:40 pmSYD - IAD

1 stop37h 50mMultiple Airlines

Fri 1/2310:20 pmIAD - SYD

2 stops45h 40mMultiple Airlines

Deal found 12/9

$1,237

Tue 5/59:20 amSYD - IAD

2 stops40h 30mAir Canada

Sat 5/910:05 pmIAD - SYD

2 stops43h 15mAir Canada

Deal found 12/11

$1,499

Sat 12/2711:20 amSYD - IAD

2 stops23h 30mUnited Airlines

Sat 1/107:45 pmIAD - SYD

1 stop42h 35mUnited Airlines

Deal found 12/11

$1,233

Mon 1/122:15 pmSYD - IAD

2 stops25h 42mDelta

Mon 1/2612:40 pmIAD - SYD

2 stops27h 50mDelta

Deal found 12/9

$1,428

Last-minute flights from Sydney to Dulles Intl
Discover last-minute flight deals from Sydney to Dulles Intl. Data last updated December 12, 2025 and is based on user searches.

Sat 12/2711:50 amSYD - IAD

1 stop20h 38mUnited Airlines

Sat 1/107:45 pmIAD - SYD

1 stop42h 35mUnited Airlines

Deal found 12/11

$1,233

Mon 12/298:40 pmSYD - IAD

1 stop37h 50mAir China

Tue 1/610:00 pmIAD - SYD

1 stop49h 30mAir China

Deal found 12/10

$1,314

Mon 1/1211:20 amSYD - IAD

2 stops25h 29mUnited Airlines

Mon 1/264:10 pmIAD - SYD

1 stop22h 10mUnited Airlines

Deal found 12/9

$1,181

Mon 1/128:40 pmSYD - IAD

1 stop37h 50mAir China

Fri 1/2310:00 pmIAD - SYD

1 stop46h 00mAir China

Deal found 12/9

$1,193

Mon 1/128:40 pmSYD - IAD

1 stop37h 50mMultiple Airlines

Fri 1/2310:20 pmIAD - SYD

2 stops45h 40mMultiple Airlines

Deal found 12/9

$1,237

Sun 1/251:55 pmSYD - IAD

2 stops27h 04mAir New Zealand

Sun 2/112:50 pmIAD - SYD

2 stops27h 55mAir New Zealand

Deal found 12/11

$1,122

Mon 1/262:05 pmSYD - IAD

1 stop23h 12mAmerican Airlines

Mon 2/96:00 amIAD - SYD

1 stop32h 55mAmerican Airlines

Deal found 12/9

$1,177

Mon 1/262:15 pmSYD - IAD

2 stops24h 51mDelta

Mon 2/93:42 pmIAD - SYD

2 stops24h 48mDelta

Deal found 12/9

$1,182

Mon 1/268:40 pmSYD - IAD

1 stop37h 50mAir China

Mon 2/93:19 pmIAD - SYD

2 stops56h 11mAir China

Deal found 12/9

$1,240

One-way flights from Sydney to Dulles Intl
Search for one-way flight options from Sydney to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

Tue 4/141:00 pmSYD - IAD

3 stops58h 45mMultiple Airlines

Deal found 12/9

$721

Sun 6/77:40 pmSYD - IAD

2 stops56h 08mAir China

Deal found 12/10

$762

Sat 1/174:05 pmSYD - IAD

3 stops40h 59mMultiple Airlines

Deal found 12/11

$864

Tue 4/149:20 amSYD - IAD

2 stops40h 30mAir Canada

Deal found 12/9

$872

Thu 4/210:25 amSYD - IAD

2 stops28h 10mDelta

Deal found 12/10

$942

Sun 6/79:10 pmSYD - IAD

2 stops36h 35mTurkish Airlines

Deal found 12/11

$953

Sun 6/79:20 amSYD - IAD

3 stops47h 38mAir Canada

Deal found 12/11

$1,003

Thu 4/28:40 pmSYD - IAD

1 stop37h 50mAir China

Deal found 12/11

$1,009

Thu 4/210:20 amSYD - IAD

3 stops48h 20mAir Canada

Deal found 12/11

$1,025

Sat 1/179:40 pmSYD - IAD

2 stops35h 24mHawaiian Airlines

Deal found 12/11

$1,027

Thu 4/210:30 amSYD - IAD

1 stop25h 40mUnited Airlines

Deal found 12/10

$1,075

Find flight deals from Sydney to Dulles Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,122 (BYOjet)
One-way from	$721 (Kiwi.com)
Popular in	December
Cheapest in	November
Average price	$1,608

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

Search Deals

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

Search Deals

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

Search Deals

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

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($113 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mon 1/12

11:20 am-8:49 pm

2 stops25h 29m

Washington, D.C. Dulles Intl

Mon 1/26

4:10 pm-6:20 am

1 stop22h 10m

$1,181

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mon 1/26

2:15 pm-11:06 pm

2 stops24h 51m

Washington, D.C. Dulles Intl

Mon 2/9

3:42 pm-8:30 am

2 stops24h 48m

$1,182

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 12/27

11:20 am-6:50 pm

2 stops23h 30m

Washington, D.C. Dulles Intl

Sat 1/10

7:45 pm-6:20 am

1 stop42h 35m

$1,233

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mon 1/12

8:40 pm-6:30 pm

1 stop37h 50m

Washington, D.C. Dulles Intl

Fri 1/23

10:20 pm-12:00 pm

2 stops45h 40m

$1,237

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mon 1/12

2:15 pm-11:57 pm

2 stops25h 42m

Washington, D.C. Dulles Intl

Mon 1/26

12:40 pm-8:30 am

2 stops27h 50m

$1,428

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 5/5

9:20 am-11:50 am

2 stops40h 30m

Washington, D.C. Dulles Intl

Sat 5/9

10:05 pm-7:20 am

2 stops43h 15m

$1,499

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 1/17

4:05 pm-5:04 pm

3 stops40h 59m

$864

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 4/14

9:30 am-12:39 am

1 stop29h 09m

$942

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 4/2

10:25 am-11:35 pm

2 stops28h 10m

$942

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 6/7

9:10 pm-7:45 pm

2 stops36h 35m

$953

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 15 results

Compare providers for flights from Sydney to Dulles Intl

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

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	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 Sydney-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Sydney-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Sydney-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Sydney-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Sydney-Washington, D.C. Dulles Intl Airport 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 Sydney to Dulles Intl

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

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 Sydney to Washington, D.C. Dulles Intl Airport

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

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sydney to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, April is the cheapest month in which you can book a flight from Sydney to Washington, D.C. Dulles Intl Airport (average of $410). Flying from Sydney to Washington, D.C. Dulles Intl Airport in September is currently the most expensive (average of $1,054). 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 Sydney to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with United Airlines from Sydney to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,095 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

United Airlines

7.4

Good

9,095 reviews

United Airlines

7.4

Good

9,095 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

Related info for your journey

What airport do you fly from for flights from Sydney to Washington, D.C. Dulles Intl?
Located just 4.6 mi from the city center, Sydney Kingsford Smith is the airport most travelers will use when flying to Washington, D.C. Dulles Intl from Sydney. Booking flights from Kingsford Smith (SYD) to Washington, D.C. Dulles Intl should be relatively easy as there are 0 daily outbound flights to Washington, D.C. Dulles Intl from 1 airline.
How long is the flight from Sydney to Washington, D.C. Dulles Intl Airport?
A quick flight from Sydney to Washington, D.C. Dulles Intl Airport can take about 24h 51m. United Airlines provides one of the quickest options available for as low as $1,182. Airlines will cover 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 is the cheapest airline to fly from Sydney to Washington, D.C. Dulles Intl Airport round-trip?
Flying on United Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $885. This flight start at 29% lower than the current average price 3 months from now.
Can I find deals for flights from Sydney to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Sydney to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sydney to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Dulles Intl.
Can I find deals for business class flights from Sydney to Dulles Intl?
Yes. Cheapflights offers flight deals from Sydney to Dulles Intl 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 Sydney to Washington, D.C. Dulles Intl Airport?
Currently, April is the cheapest month in which you can book a flight from Sydney to Washington, D.C. Dulles Intl Airport (average of $410). Flying from Sydney to Washington, D.C. Dulles Intl Airport in September is currently the most expensive (average of $1,054). 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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Top airline flying from Sydney to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$885	Average$1,476	FlexibilityNo cancel fee	On-time69%

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$721+ Cheap flights from Sydney (SYD) to Dulles Intl (IAD)

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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Sydney to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Washington, D.C. Dulles Intl are usually found in November or March, booked 78 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Sydney to Dulles Intl

Cheapest flights from Sydney to Dulles IntlExplore the most affordable flight options available from Sydney to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Explore the most affordable flight options available from Sydney to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Find flight deals from Sydney to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Compare providers for flights from Sydney to Dulles Intl

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 Sydney to Dulles Intl in December.

Best time to book a flight from Sydney to Dulles Intl

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

Cheapflights Insights

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

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

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

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

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with United Airlines from Sydney to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Sydney to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

What is the cheapest airline to fly from Sydney to Washington, D.C. Dulles Intl Airport round-trip?

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

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

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

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sydney to Dulles Intl

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Top airline flying from Sydney to Dulles Intl

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Cheapest flights from Sydney to Dulles Intl
Explore the most affordable flight options available from Sydney to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.