What is the cheapest airline to fly 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 Air Canada. Our recent data shows that you can find tickets from as low as $835 on this airline. Users have found that Air Canada is 35% 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?

American Airlines, Air Canada and Delta 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 Los Angeles 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 Dallas.

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

Hollywood Bowl, Hollywood Walk of Fame, and The Wiltern are currently the most popular points of interest in Los Angeles at the moment. Hollywood Bowl, Hollywood Walk of Fame, and The Wiltern are located about 12.5 mi, 11.7 mi, and 10.0 mi, respectively from Los Angeles. Travelers in need of a car in Los Angeles can rent one for about $52 per day.

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

Sunday flights are found to be more expensive to fly from Washington, D.C. Dulles Intl Airport to Sydney. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Sydney.

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

August is one of the best times of the year to fly to Sydney from Washington, D.C. Dulles Intl Airport. Prices for August average $1,194 per person but you can even find prices for as low as $812. The most expensive prices can be found in the month of December. Opting for a August flight can save you 50% on your journey compared to booking in December

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.

$537+ Flights from Washington, D.C. Dulles Intl Airport to Sydney

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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Sydney Kingsford Smith are usually found in April or February, booked 65 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from Dulles Intl to Sydney

Round-trip from	$835 (Air Canada)
One-way from	$537 (Trip.com)
Popular in	December
Cheapest in	April
Average price	$1,007

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

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Highest demand for flights based on searches. 17% potential increase in price ($278 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($42 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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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 August 13, 2025.

Tue 10/211:00 pmIAD - SYD

2 stops28h 20mAir Canada

Sun 10/2610:20 amSYD - IAD

2 stops25h 39mAir Canada

Deal found 8/11

$835

Tue 10/289:45 amIAD - SYD

2 stops31h 50mAir Canada

Sat 11/811:20 amSYD - IAD

2 stops25h 39mAir Canada

Deal found 8/11

$898

Tue 10/289:45 amIAD - SYD

3 stops31h 50mAir Canada

Thu 11/611:20 amSYD - IAD

2 stops25h 39mAir Canada

Deal found 8/11

$905

Tue 11/119:45 amIAD - SYD

2 stops31h 50mAir Canada

Sun 11/2311:20 amSYD - IAD

2 stops40h 03mAir Canada

Deal found 8/11

$935

Mon 11/310:11 pmIAD - SYD

2 stops43h 24mAir Canada

Sun 11/1611:20 amSYD - IAD

2 stops25h 09mAir Canada

Deal found 8/11

$948

Wed 11/199:45 amIAD - SYD

2 stops31h 50mAir Canada

Sat 12/134:00 pmSYD - IAD

2 stops35h 23mAir Canada

Deal found 8/12

$998

Sat 11/110:11 pmIAD - SYD

2 stops44h 24mAir Canada

Sat 11/811:20 amSYD - IAD

2 stops25h 39mAir Canada

Deal found 8/11

$1,005

Wed 11/510:11 pmIAD - SYD

2 stops43h 24mAir Canada

Sun 11/1611:20 amSYD - IAD

2 stops25h 09mAir Canada

Deal found 8/11

$1,011

Wed 11/510:11 pmIAD - SYD

2 stops43h 24mAir Canada

Wed 11/1211:20 amSYD - IAD

3 stops40h 03mAir Canada

Deal found 8/13

$1,012

Mon 11/179:45 amIAD - SYD

3 stops31h 50mAir Canada

Wed 11/2611:20 amSYD - IAD

2 stops25h 39mAir Canada

Deal found 8/12

$1,042

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 13, 2025.

Tue 11/119:45 amIAD - SYD

3 stops31h 50mAir Canada

Sun 11/2311:20 amSYD - IAD

2 stops40h 03mAir Canada

Deal found 8/12

$942

Sun 8/246:10 amIAD - SYD

2 stops34h 45mMultiple Airlines

Sun 8/3112:10 pmSYD - IAD

2 stops26h 06mMultiple Airlines

Deal found 8/11

$1,144

Thu 11/272:30 pmIAD - SYD

2 stops26h 15mAir New Zealand

Sun 12/147:15 pmSYD - IAD

2 stops41h 19mAir New Zealand

Deal found 8/11

$1,308

Sat 11/110:11 pmIAD - SYD

2 stops44h 24mAir Canada

Sat 11/811:20 amSYD - IAD

2 stops25h 39mAir Canada

Deal found 8/12

$1,005

Wed 11/510:11 pmIAD - SYD

2 stops43h 24mAir Canada

Wed 11/1211:20 amSYD - IAD

3 stops40h 03mAir Canada

Deal found 8/13

$1,012

Sun 11/25:00 amIAD - SYD

2 stops34h 45mAir New Zealand

Mon 11/101:55 pmSYD - IAD

2 stops32h 53mAir New Zealand

Deal found 8/13

$1,310

Tue 9/211:51 amIAD - SYD

2 stops44h 19mMultiple Airlines

Tue 9/91:15 pmSYD - IAD

2 stops23h 30mMultiple Airlines

Deal found 8/13

$1,322

Mon 11/36:48 amIAD - SYD

2 stops33h 57mAir New Zealand

Mon 11/179:55 amSYD - IAD

2 stops26h 56mAir New Zealand

Deal found 8/13

$1,310

Tue 9/95:40 pmIAD - SYD

2 stops38h 30mMultiple Airlines

Tue 9/161:15 pmSYD - IAD

2 stops23h 30mMultiple Airlines

Deal found 8/13

$1,333

Mon 11/36:48 amIAD - SYD

2 stops33h 57mAir New Zealand

Tue 11/119:55 amSYD - IAD

2 stops26h 44mAir New Zealand

Deal found 8/13

$1,310

Tue 9/165:40 pmIAD - SYD

2 stops28h 05mMultiple Airlines

Tue 10/72:15 pmSYD - IAD

2 stops23h 36mMultiple Airlines

Deal found 8/12

$1,337

Sat 11/810:10 pmIAD - SYD

2 stops42h 35mAir New Zealand

Mon 11/179:55 amSYD - IAD

2 stops29h 49mAir New Zealand

Deal found 8/13

$1,320

Last-minute flights from Dulles Intl to Sydney
Discover last-minute flight deals from Dulles Intl to Sydney. Data last updated August 13, 2025 and is based on user searches.

Mon 8/189:00 pmIAD - SYD

1 stop30h 10mMultiple Airlines

Sun 8/245:45 pmSYD - IAD

2 stops29h 42mMultiple Airlines

Deal found 8/12

$1,777

Mon 8/189:00 pmIAD - SYD

1 stop30h 10mMultiple Airlines

Sat 8/235:45 pmSYD - IAD

2 stops44h 31mMultiple Airlines

Deal found 8/12

$1,788

Tue 8/193:55 pmIAD - SYD

2 stops28h 40mAir New Zealand

Tue 8/2610:20 amSYD - IAD

1 stop22h 32mAir New Zealand

Deal found 8/11

$1,827

Wed 8/2012:50 pmIAD - SYD

1 stop39h 50mMultiple Airlines

Wed 9/104:20 pmSYD - IAD

2 stops29h 13mMultiple Airlines

Deal found 8/12

$1,288

Wed 8/201:30 pmIAD - SYD

2 stops39h 30mTurkish Airlines

Wed 9/108:55 pmSYD - IAD

2 stops36h 50mTurkish Airlines

Deal found 8/12

$1,416

Wed 8/209:00 pmIAD - SYD

1 stop30h 10mQatar Airways

Wed 9/108:45 pmSYD - IAD

1 stop32h 55mQatar Airways

Deal found 8/12

$1,605

Fri 8/225:52 pmIAD - SYD

2 stops35h 53mAlaska Airlines

Sat 8/309:40 pmSYD - IAD

2 stops33h 07mAlaska Airlines

Deal found 8/11

$1,754

Sat 8/2310:55 amIAD - SYD

2 stops53h 30mEmirates

Tue 9/29:50 amSYD - IAD

2 stops60h 50mEmirates

Deal found 8/13

$1,842

Sun 8/246:10 amIAD - SYD

2 stops34h 45mMultiple Airlines

Sun 8/3112:10 pmSYD - IAD

2 stops26h 06mMultiple Airlines

Deal found 8/11

$1,144

Mon 9/18:25 amIAD - SYD

1 stop32h 55mAir Canada

Tue 9/309:20 amSYD - IAD

2 stops38h 18mAir Canada

Deal found 8/11

$1,217

Tue 9/99:15 amIAD - SYD

2 stops31h 50mMultiple Airlines

Fri 9/2612:10 pmSYD - IAD

2 stops26h 05mMultiple Airlines

Deal found 8/11

$1,055

Wed 9/1011:03 amIAD - SYD

2 stops44h 37mAir New Zealand

Wed 9/248:45 amSYD - IAD

2 stops29h 10mAir New Zealand

Deal found 8/11

$1,260

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 13, 2025.

Mon 11/176:00 amIAD - SYD

2 stops56h 55mMultiple Airlines

Deal found 8/12

$537

Mon 9/156:10 amIAD - SYD

2 stops34h 45mMultiple Airlines

Deal found 8/12

$543

Mon 10/276:15 amIAD - SYD

2 stops35h 45mMultiple Airlines

Deal found 8/12

$545

Mon 11/106:00 amIAD - SYD

2 stops32h 55mMultiple Airlines

Deal found 8/12

$546

Wed 9/106:09 pmIAD - SYD

3 stops54h 31mMultiple Airlines

Deal found 8/11

$583

Sat 9/277:00 amIAD - SYD

3 stops41h 40mMultiple Airlines

Deal found 8/11

$591

Tue 8/199:30 amIAD - SYD

3 stops39h 10mMultiple Airlines

Deal found 8/12

$607

Mon 11/247:53 amIAD - SYD

2 stops31h 32mMultiple Airlines

Deal found 8/11

$609

Wed 11/57:43 amIAD - SYD

2 stops31h 42mMultiple Airlines

Deal found 8/13

$611

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

Tue 11/11

9:45 am-9:35 am

3 stops31h 50m

Sydney Kingsford Smith

Sun 11/23

11:20 am-11:23 am

2 stops40h 03m

$942

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sat 11/1

10:11 pm-9:35 am

2 stops44h 24m

Sydney Kingsford Smith

Sat 11/8

11:20 am-8:59 pm

2 stops25h 39m

$1,005

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 11/5

10:11 pm-9:35 am

2 stops43h 24m

Sydney Kingsford Smith

Wed 11/12

11:20 am-11:23 am

3 stops40h 03m

$1,012

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 8/24

6:10 am-6:55 am

2 stops34h 45m

Sydney Kingsford Smith

Sun 8/31

12:10 pm-12:16 am

2 stops26h 06m

$1,144

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Thu 11/27

2:30 pm-8:45 am

2 stops26h 15m

Sydney Kingsford Smith

Sun 12/14

7:15 pm-8:34 pm

2 stops41h 19m

$1,308

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sun 11/2

5:00 am-7:45 am

2 stops34h 45m

Sydney Kingsford Smith

Mon 11/10

1:55 pm-6:48 am

2 stops32h 53m

$1,310

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 11/3

6:48 am-8:45 am

2 stops33h 57m

Sydney Kingsford Smith

Mon 11/17

9:55 am-8:51 pm

2 stops26h 56m

$1,310

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 11/3

6:48 am-8:45 am

2 stops33h 57m

Sydney Kingsford Smith

Tue 11/11

9:55 am-8:39 pm

2 stops26h 44m

$1,310

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sat 11/8

10:10 pm-8:45 am

2 stops42h 35m

Sydney Kingsford Smith

Mon 11/17

9:55 am-11:44 pm

2 stops29h 49m

$1,320

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 9/2

11:51 am-10:10 pm

2 stops44h 19m

Sydney Kingsford Smith

Tue 9/9

1:15 pm-10:45 pm

2 stops23h 30m

$1,322

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 20 results

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 65 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 $1,031). Flying from Washington, D.C. Dulles Intl Airport to Sydney in December is currently the most expensive (average of $1,619). 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.

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

When flying from Washington, D.C. Dulles Intl Airport to Sydney, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 17% versus a flight in the morning.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Sydney?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Sydney flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,979 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Qantas Airways

7.5

Good

893 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,920 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air Canada

7.1

Good

9,943 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 is the cheapest airline to fly 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 Air Canada. Our recent data shows that you can find tickets from as low as $835 on this airline. Users have found that Air Canada is 35% 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 Los Angeles most often.
What are some popular things to do or see while on a layover in Los Angeles?
Hollywood Bowl, Hollywood Walk of Fame, and The Wiltern are currently the most popular points of interest in Los Angeles at the moment. Hollywood Bowl, Hollywood Walk of Fame, and The Wiltern are located about 12.5 mi, 11.7 mi, and 10.0 mi, respectively from Los Angeles. Travelers in need of a car in Los Angeles 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 Dallas.
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 $1,031). Flying from Washington, D.C. Dulles Intl Airport to Sydney in December is currently the most expensive (average of $1,619). 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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Other flights to Sydney

Top 7 airlines flying from Dulles Intl to Sydney

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$609	Average$972	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$830	Average$871	FlexibilityNo cancel fee	On-time71%
Qantas Airways	Cheapest$842	Average$1,252	FlexibilityNo cancel fee	On-time74%
Air Canada	Cheapest$1,036	Average$1,291	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$1,183	Average$1,610	FlexibilityNo cancel fee	On-time69%
Air New Zealand	Cheapest$1,294	Average$1,786	FlexibilityNo cancel fee	On-time78%
ANA	Cheapest$1,370	Average$1,587	FlexibilityNo cancel fee	On-time80%

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$537+ 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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Sydney 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 Washington, D.C. Dulles Intl to Sydney Kingsford Smith are usually found in April or February, booked 65 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from Dulles Intl to Sydney

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 August 13, 2025.

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 13, 2025.

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.

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?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Sydney. Price data was last updated on August 8, 2025.

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

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

Find hourly flight availability from Dulles Intl to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 13, 2025.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Sydney?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Sydney. Price data was last updated on December 16, 2024.

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.

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 is the cheapest airline to fly 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 Los Angeles?

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 August 13, 2025.