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 $377 on this airline. Additional options worth looking into are Delta and Qantas Airways, starting at $609 and $816 round-trip. Users have found that United Airlines is 71% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Sydney one-way?

The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $395. However, be on the lookout for offers from Qantas Airways and Delta, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Sydney for a low price.

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, American Airlines 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 $51 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Sydney flight deals on Cheapflights vs. eDreams >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 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 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 7 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.

$564+ Flights from Washington, D.C. Dulles Intl Airport to Sydney

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

Airfare is below average for this route at the moment. Washington, D.C. Dulles Intl Airport to Sydney flights typically cost between $1,308 and $1,714 in March. The cheapest round-trip price found within the last 3 days was $1,130 on American Airlines (Mar 2-Mar 15).

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Cheap flight deals from Dulles Intl to Sydney

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,130 (American Airlines)
One-way from	$564 (Kiwi.com)
Popular in	December
Cheapest in	May
Average price	$1,561

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

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

Search Deals

Highest demand for flights based on searches. 22% potential increase in price ($397 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($83 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in January 2026

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Find flight deals from Dulles Intl to Sydney

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 enero 8, 2026.

lun. 3/25:37 pmIAD - SYD

2 stops45h 48mAmerican Airlines

dom. 3/1511:20 amSYD - IAD

2 stops36h 28mAmerican Airlines

Deal found 1/8

$1,130

lun. 4/62:03 pmIAD - SYD

2 stops27h 02mAmerican Airlines

jue. 4/169:10 amSYD - IAD

2 stops28h 18mAmerican Airlines

Deal found 1/8

$1,146

sáb. 3/289:18 amIAD - SYD

2 stops31h 47mAmerican Airlines

dom. 4/199:25 pmSYD - IAD

2 stops25h 24mAmerican Airlines

Deal found 1/8

$1,147

dom. 8/236:34 amIAD - SYD

2 stops33h 51mQantas Airways

lun. 8/319:10 amSYD - IAD

2 stops27h 34mQantas Airways

Deal found 1/8

$1,157

lun. 3/25:37 pmIAD - SYD

2 stops45h 48mAmerican Airlines

lun. 3/1611:20 amSYD - IAD

2 stops24h 10mAmerican Airlines

Deal found 1/7

$1,173

jue. 4/29:18 amIAD - SYD

2 stops31h 47mAmerican Airlines

mar. 4/145:50 pmSYD - IAD

2 stops28h 59mAmerican Airlines

Deal found 1/7

$1,187

mar. 2/248:30 amIAD - SYD

2 stops32h 15mAir New Zealand

mar. 3/2411:45 amSYD - IAD

2 stops27h 43mAir New Zealand

Deal found 1/6

$1,236

mié. 2/2512:35 pmIAD - SYD

2 stops28h 10mAir New Zealand

mié. 3/1111:45 amSYD - IAD

2 stops28h 18mAir New Zealand

Deal found 1/6

$1,237

mar. 8/185:30 pmIAD - SYD

2 stops25h 15mAir New Zealand

mié. 9/211:55 amSYD - IAD

2 stops26h 55mAir New Zealand

Deal found 1/6

$1,238

mar. 3/312:35 pmIAD - SYD

2 stops29h 55mAir New Zealand

mar. 3/179:55 amSYD - IAD

2 stops29h 33mAir New Zealand

Deal found 1/7

$1,240

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 enero 8, 2026.

dom. 1/185:26 pmIAD - SYD

3 stops34h 19mMultiple Airlines

lun. 1/269:40 pmSYD - IAD

3 stops35h 24mMultiple Airlines

Deal found 1/6

$1,390

vie. 2/206:20 pmIAD - SYD

3 stops33h 25mMultiple Airlines

mar. 3/109:40 pmSYD - IAD

2 stops34h 47mMultiple Airlines

Deal found 1/7

$1,401

mar. 2/246:20 pmIAD - SYD

3 stops33h 25mMultiple Airlines

mar. 3/249:40 pmSYD - IAD

2 stops34h 42mMultiple Airlines

Deal found 1/6

$1,411

dom. 2/16:04 pmIAD - SYD

2 stops33h 41mMultiple Airlines

vie. 2/69:40 pmSYD - IAD

2 stops34h 46mMultiple Airlines

Deal found 1/5

$1,416

mar. 4/146:22 pmIAD - SYD

3 stops34h 28mMultiple Airlines

mar. 4/218:45 pmSYD - IAD

3 stops34h 56mMultiple Airlines

Deal found 1/6

$1,417

mar. 2/246:20 pmIAD - SYD

3 stops33h 25mMultiple Airlines

mar. 3/179:40 pmSYD - IAD

3 stops35h 31mMultiple Airlines

Deal found 1/8

$1,439

sáb. 1/316:04 pmIAD - SYD

2 stops57h 41mMultiple Airlines

vie. 2/69:40 pmSYD - IAD

2 stops34h 46mMultiple Airlines

Deal found 1/5

$1,448

vie. 4/246:41 pmIAD - SYD

3 stops34h 09mMultiple Airlines

vie. 5/18:45 pmSYD - IAD

2 stops34h 56mMultiple Airlines

Deal found 1/6

$1,448

vie. 2/206:20 pmIAD - SYD

3 stops33h 25mMultiple Airlines

mar. 3/39:40 pmSYD - IAD

2 stops35h 40mMultiple Airlines

Deal found 1/6

$1,449

Last-minute flights from Dulles Intl to Sydney
Discover last-minute flight deals from Dulles Intl to Sydney. Data last updated enero 8, 2026 and is based on user searches.

sáb. 2/75:45 pmIAD - SYD

2 stops47h 00mAir New Zealand

mié. 2/1811:45 amSYD - IAD

2 stops26h 31mAir New Zealand

Deal found 1/7

$1,251

sáb. 2/75:45 pmIAD - SYD

2 stops47h 00mAir New Zealand

mar. 2/177:15 pmSYD - IAD

2 stops41h 26mAir New Zealand

Deal found 1/7

$1,273

dom. 2/85:26 pmIAD - SYD

2 stops25h 29mQantas Airways

dom. 2/152:05 pmSYD - IAD

1 stop20h 13mQantas Airways

Deal found 1/6

$1,247

sáb. 2/145:35 pmIAD - SYD

2 stops47h 10mAir New Zealand

dom. 2/227:15 pmSYD - IAD

2 stops43h 01mAir New Zealand

Deal found 1/6

$1,269

mar. 2/175:37 pmIAD - SYD

2 stops28h 18mQantas Airways

mar. 5/2612:00 pmSYD - IAD

1 stop20h 31mQantas Airways

Deal found 1/6

$1,254

mié. 2/1812:35 pmIAD - SYD

2 stops29h 55mAir New Zealand

mar. 2/247:15 pmSYD - IAD

2 stops41h 26mAir New Zealand

Deal found 1/6

$1,258

mar. 2/248:30 amIAD - SYD

2 stops32h 15mAir New Zealand

mar. 3/2411:45 amSYD - IAD

2 stops27h 43mAir New Zealand

Deal found 1/6

$1,236

mar. 2/242:36 pmIAD - SYD

2 stops26h 09mAir New Zealand

mar. 3/1011:45 amSYD - IAD

2 stops33h 06mAir New Zealand

Deal found 1/7

$1,241

mar. 2/245:37 pmIAD - SYD

2 stops25h 18mQantas Airways

mar. 3/241:05 pmSYD - IAD

1 stop24h 48mQantas Airways

Deal found 1/7

$1,253

mié. 2/2512:35 pmIAD - SYD

2 stops28h 10mAir New Zealand

mié. 3/1111:45 amSYD - IAD

2 stops28h 18mAir New Zealand

Deal found 1/6

$1,237

sáb. 2/2810:05 pmIAD - SYD

2 stops42h 40mAir New Zealand

mié. 3/1111:45 amSYD - IAD

2 stops27h 43mAir New Zealand

Deal found 1/8

$1,255

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 enero 8, 2026.

mar. 3/246:20 amIAD - SYD

2 stops34h 05mMultiple Airlines

Deal found 1/6

$564

mar. 3/37:05 amIAD - SYD

2 stops32h 20mMultiple Airlines

Deal found 1/7

$603

dom. 3/153:35 pmIAD - SYD

3 stops38h 00mMultiple Airlines

Deal found 1/6

$611

lun. 3/306:20 amIAD - SYD

2 stops34h 10mMultiple Airlines

Deal found 1/6

$615

lun. 2/210:50 amIAD - SYD

2 stops28h 35mMultiple Airlines

Deal found 1/6

$627

vie. 2/2710:23 amIAD - SYD

2 stops29h 02mMultiple Airlines

Deal found 1/8

$653

mar. 2/38:05 pmIAD - SYD

3 stops45h 10mMultiple Airlines

Deal found 1/6

$673

mar. 4/147:00 amIAD - SYD

3 stops34h 40mMultiple Airlines

Deal found 1/6

$711

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

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

dom. 1/18

5:26 pm-7:45 pm

3 stops34h 19m

Sydney Kingsford Smith

lun. 1/26

9:40 pm-5:04 pm

3 stops35h 24m

$1,390

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

vie. 2/20

6:20 pm-7:45 pm

3 stops33h 25m

Sydney Kingsford Smith

mar. 3/10

9:40 pm-5:27 pm

2 stops34h 47m

$1,401

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

mar. 2/24

6:20 pm-7:45 pm

3 stops33h 25m

Sydney Kingsford Smith

mar. 3/24

9:40 pm-5:22 pm

2 stops34h 42m

$1,411

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

dom. 2/1

6:04 pm-7:45 pm

2 stops33h 41m

Sydney Kingsford Smith

vie. 2/6

9:40 pm-4:26 pm

2 stops34h 46m

$1,416

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

mar. 4/14

6:22 pm-6:50 pm

3 stops34h 28m

Sydney Kingsford Smith

mar. 4/21

8:45 pm-5:41 pm

3 stops34h 56m

$1,417

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

mar. 2/24

6:20 pm-7:45 pm

3 stops33h 25m

Sydney Kingsford Smith

mar. 3/17

9:40 pm-6:11 pm

3 stops35h 31m

$1,439

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

sáb. 1/31

6:04 pm-7:45 pm

2 stops57h 41m

Sydney Kingsford Smith

vie. 2/6

9:40 pm-4:26 pm

2 stops34h 46m

$1,448

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

vie. 4/24

6:41 pm-6:50 pm

3 stops34h 09m

Sydney Kingsford Smith

vie. 5/1

8:45 pm-5:41 pm

2 stops34h 56m

$1,448

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

vie. 2/20

6:20 pm-7:45 pm

3 stops33h 25m

Sydney Kingsford Smith

mar. 3/3

9:40 pm-5:20 pm

2 stops35h 40m

$1,449

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

lun. 3/30

6:20 am-7:30 am

2 stops34h 10m

$615

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 19 results

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 January.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 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 Washington, D.C. Dulles Intl Airport-Sydney flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Sydney flight deals on Cheapflights vs. eDreams >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 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 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.

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

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 10 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Sydney (average of $357). Flying from Washington, D.C. Dulles Intl Airport to Sydney in January is currently the most expensive (average of $989). 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?

Reviews of airlines servicing Sydney

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

Delta

7.9

Good

8,032 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,032 reviews

Delta

7.9

Good

8,032 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Qantas Airways

7.5

Good

968 reviews

Delta

7.9

Good

8,032 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,142 reviews

Delta

7.9

Good

8,032 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,097 reviews

Delta

7.9

Good

8,032 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Air Canada

7.1

Good

10,603 reviews

Delta

7.9

Good

8,032 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

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 7 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.
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 $377 on this airline. Additional options worth looking into are Delta and Qantas Airways, starting at $609 and $816 round-trip. Users have found that United Airlines is 71% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Sydney one-way?
The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $395. However, be on the lookout for offers from Qantas Airways and Delta, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Sydney for a low price.
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 $51 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Sydney (average of $357). Flying from Washington, D.C. Dulles Intl Airport to Sydney in January is currently the most expensive (average of $989). 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.

See more FAQs

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Top 7 airlines flying from Dulles Intl to Sydney

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$377	Average$1,604	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$609	Average$936	FlexibilityNo cancel fee	On-timeN/A
Qantas Airways	Cheapest$816	Average$1,231	FlexibilityNo cancel fee	On-time74%
American Airlines	Cheapest$827	Average$853	FlexibilityNo cancel fee	On-time71%
Air Canada	Cheapest$854	Average$1,249	FlexibilityNo cancel fee	On-time67%
Air New Zealand	Cheapest$1,289	Average$1,874	FlexibilityNo cancel fee	On-time78%
ANA	Cheapest$1,370	Average$1,392	FlexibilityNo cancel fee	On-time80%

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$564+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.

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Find 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 enero 8, 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 enero 8, 2026.

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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 January.

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

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

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

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?

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated enero 8, 2026.

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

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Sydney. 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 into for flights to Sydney from Washington, D.C. Dulles Intl?

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

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Sydney one-way?

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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Top 7 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 enero 8, 2026.