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Cheap flights from Sydney to Washington, D.C. Dulles Intl Airport from $726

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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — IAD
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Dulles Intl

Enter your travel dates to find the best prices.

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 22 January 2026.

Thu 5/311:20
SYD
-
IAD
2 stops25h 34m
Air Canada
Mon 16/309:55
IAD
-
SYD
2 stops31h 40m
Air Canada
Deal found 21/1$1,570
Tue 17/211:20
SYD
-
IAD
2 stops40h 24m
Air Canada
Tue 24/212:43
IAD
-
SYD
2 stops28h 52m
Air Canada
Deal found 20/1$1,579
Wed 11/211:20
SYD
-
IAD
2 stops40h 24m
Air Canada
Wed 18/209:00
IAD
-
SYD
2 stops32h 35m
Air Canada
Deal found 20/1$1,590
Thu 5/320:40
SYD
-
IAD
1 stop37h 50m
Multiple Airlines
Mon 16/318:00
IAD
-
SYD
2 stops54h 30m
Multiple Airlines
Deal found 21/1$1,675
Sun 8/209:55
SYD
-
IAD
2 stops28h 23m
Air New Zealand
Mon 16/206:03
IAD
-
SYD
2 stops36h 27m
Air New Zealand
Deal found 20/1$1,679
Thu 26/211:20
SYD
-
IAD
2 stops25h 34m
Air Canada
Wed 4/309:45
IAD
-
SYD
2 stops31h 50m
Air Canada
Deal found 20/1$1,684
Thu 19/211:20
SYD
-
IAD
2 stops44h 51m
Air Canada
Thu 26/209:00
IAD
-
SYD
2 stops32h 35m
Air Canada
Deal found 20/1$1,687

Find flight deals from Sydney to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 January 2026.

Round-trip from

$1,570

One-way from

$726

Popular in

May

Cheapest in

March

Average price

$1,747
Air Canada
  • Air Canada
  • 5/3-16/3
  • 4 total stops
  • 57h 14m total
  • Sydney to Washington, D.C.
Search Deals
4/3
  • 4/3
  • 3 total stops
  • 36h 33m total
  • Sydney to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($314 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($36 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 22 January 2026.
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

Sydney

Fly to

Dulles Intl

Route

Depart

Return

Price

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 11/2

11:20-11:44

2 stops40h 24m

Washington, D.C. Dulles Intl

Wed 18/2

09:00-09:35

2 stops32h 35m

$1,590

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 17/2

11:20-21:23

2 stops26h 03m

Washington, D.C. Dulles Intl

Tue 24/2

09:45-09:35

3 stops31h 50m

$1,596

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 8/2

09:55-22:18

2 stops28h 23m

Washington, D.C. Dulles Intl

Mon 16/2

06:03-10:30

2 stops36h 27m

$1,679

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 19/2

11:20-11:29

2 stops40h 09m

Washington, D.C. Dulles Intl

Thu 26/2

09:00-09:35

1 stop32h 35m

$1,706

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 26/2

11:20-21:23

2 stops26h 03m

Washington, D.C. Dulles Intl

Fri 6/3

09:45-09:35

2 stops31h 50m

$1,753

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 12/2

11:20-11:29

3 stops40h 09m

Washington, D.C. Dulles Intl

Wed 18/2

09:45-09:35

3 stops31h 50m

$1,811

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 22/2

20:10-16:31

2 stops36h 21m

Washington, D.C. Dulles Intl

Tue 10/3

17:37-09:50

2 stops25h 13m

$1,938

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 7/2

21:40-17:04

3 stops35h 24m

Washington, D.C. Dulles Intl

Thu 19/2

18:27-19:45

2 stops33h 18m

$1,968

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 17/5

20:45-17:42

2 stops34h 57m

Washington, D.C. Dulles Intl

Wed 27/5

17:33-18:50

2 stops35h 17m

$2,066

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 7/3

11:20-21:21

2 stops26h 01m

Washington, D.C. Dulles Intl

Sat 14/3

17:46-08:35

3 stops47h 49m

$2,103

Flights are sorted by cheapest return flights first.

Deals found on 20/1

Showing 1-10 of 23 results
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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 return 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?

Use this chart to determine the optimal time to book a return flight from Sydney to Dulles Intl. Price data was last updated on 16 January 2026.

To ensure you get the cheapest price possible for a flight from Sydney to Washington, D.C. Dulles Intl Airport, you should look to book at least 78 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 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 $850). Flying from Sydney to Washington, D.C. Dulles Intl Airport in September is currently the most expensive (average of $1,561). 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.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated 22 January 2026.
Read reviews from past customers who have flown with Air New Zealand, Qantas Airways, andUnited Airlines from Sydney to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very Good
573 reviews
Check prices

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Air New Zealand
8.0
Very Good
573 reviews
Air New Zealand
8.0
Very Good
573 reviews
Check prices

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Qantas Airways
7.5
Good
973 reviews
Air New Zealand
8.0
Very Good
573 reviews
Check prices

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
United Airlines
7.4
Good
9,191 reviews
Air New Zealand
8.0
Very Good
573 reviews
Check prices

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
American Airlines
7.2
Good
11,174 reviews
Air New Zealand
8.0
Very Good
573 reviews
Check prices

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Air Canada
7.1
Good
10,646 reviews
Air New Zealand
8.0
Very Good
573 reviews
Check prices

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane

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?

    Sydney Kingsford Smith (SYD), located 7.5 km from the city centre, is the airport you fly out of when you book flights from Sydney to Washington, D.C. Dulles Intl. 6 airlines have flights from Kingsford Smith to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Sydney Kingsford Smith to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.

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

    Departing from Sydney to Washington, D.C. Dulles Intl Airport will take you 28h 23m. The distance from Sydney to Washington, D.C. Dulles Intl Airport is about 15670 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Our cheapest airline available from Sydney to Washington, D.C. Dulles Intl Airport is American Airlines. Our recent data shows that you can find tickets from as low as $595 on this airline. Additional options worth looking into are Qantas Airways and Virgin Australia, starting at $826 and $1,190 round-trip. American Airlines is currently priced 66% below the average price you’ll pay for this route.

  • 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 holiday 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 $850). Flying from Sydney to Washington, D.C. Dulles Intl Airport in September is currently the most expensive (average of $1,561). 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

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

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Linthicum Heights

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Fly from Sydney to Dulles Intl on these airlines

Choose from the following airlines for your flight from Sydney to Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on 22 January 2026.
United Airlines flights from Sydney Kingsford Smith to Washington, D.C. Dulles Intl
Air Canada flights from Sydney Kingsford Smith to Washington, D.C. Dulles Intl

Top 6 airlines flying from Sydney to Dulles Intl

Discover the top 6 airlines that operate flights from Sydney to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 22 January 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$595Average$1,930FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Qantas AirwaysCheapest$826Average$1,473FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Virgin AustraliaCheapest$1,190Average$2,617FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Air CanadaCheapest$1,278Average$1,729FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air New ZealandCheapest$1,429Average$1,659FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapest$1,562Average$2,085FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sydney to Dulles Intl?

Cheapflights makes it easy to find Sydney to Dulles Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Dulles Intl?

Cheapflights helps you find that perfect flight to Dulles Intl from Sydney by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Sydney to Dulles Intl with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Sydney to Dulles Intl flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Sydney to Dulles Intl become cheaper?

Not ready to book yet? You can track prices for flights from Sydney to Dulles Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

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