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Dulles Intl

$712+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — IAD
may. 24 — may. 311
dom. 5/24
dom. 5/31
1 adult, Economy
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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 abril 24, 2026.

This Trip.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/41:15 pm
SYD
-
IAD
3 stops32h 57m
Multiple Airlines
sáb. 6/139:35 am
IAD
-
SYD
3 stops46h 35m
Multiple Airlines
Deal found 4/22$1,079
This Trip.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/56:00 am
SYD
-
IAD
3 stops42h 12m
Multiple Airlines
vie. 6/129:55 am
IAD
-
SYD
3 stops46h 15m
Multiple Airlines
Deal found 4/21$1,155
This Trip.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/121:15 pm
SYD
-
IAD
3 stops34h 57m
Multiple Airlines
mié. 5/2011:12 am
IAD
-
SYD
3 stops44h 58m
Multiple Airlines
Deal found 4/23$1,172
This Justfly.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/307:40 pm
SYD
-
IAD
1 stop37h 50m
Air China
mar. 8/1111:00 pm
IAD
-
SYD
1 stop49h 50m
Air China
Deal found 4/23$1,175
This Trip.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/31:20 pm
SYD
-
IAD
3 stops43h 22m
Multiple Airlines
dom. 6/79:12 am
IAD
-
SYD
3 stops46h 58m
Multiple Airlines
Deal found 4/19$1,183
This Trip.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/209:10 am
SYD
-
IAD
2 stops37h 02m
Multiple Airlines
mié. 5/279:12 am
IAD
-
SYD
2 stops31h 53m
Multiple Airlines
Deal found 4/21$1,195
This Air China deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/277:45 pm
SYD
-
IAD
1 stop37h 45m
Air China
mar. 8/1111:00 pm
IAD
-
SYD
1 stop49h 50m
Air China
Deal found 4/23$1,198
This Trip.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/35:50 pm
SYD
-
IAD
2 stops38h 52m
Multiple Airlines
mié. 6/109:55 am
IAD
-
SYD
2 stops31h 35m
Multiple Airlines
Deal found 4/19$1,230
This Trip.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/221:15 pm
SYD
-
IAD
3 stops34h 57m
Multiple Airlines
jue. 5/289:12 am
IAD
-
SYD
3 stops46h 58m
Multiple Airlines
Deal found 4/21$1,255
This Trip.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/46:00 am
SYD
-
IAD
3 stops49h 52m
Multiple Airlines
sáb. 5/96:49 am
IAD
-
SYD
3 stops39h 01m
Multiple Airlines
Deal found 4/22$1,269
This Air China deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/167:40 pm
SYD
-
IAD
1 stop37h 50m
Multiple Airlines
dom. 7/2610:20 pm
IAD
-
SYD
2 stops74h 30m
Multiple Airlines
Deal found 4/21$1,275
This Trip.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/35:50 pm
SYD
-
IAD
2 stops38h 52m
Multiple Airlines
mié. 6/179:55 am
IAD
-
SYD
2 stops31h 35m
Multiple Airlines
Deal found 4/20$1,287

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 abril 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,079
(Trip.com)

One-way from

$668
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,231
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. 13% potential increase in price ($186 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated abril 24, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

jue. 7/16

11:45 am-10:05 am

1 stop36h 20m

Washington, D.C. Dulles Intl

dom. 7/26

8:15 am-7:10 pm

2 stops44h 55m

$1,729

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

jue. 6/25

9:15 am-11:20 pm

2 stops28h 05m

Washington, D.C. Dulles Intl

sáb. 7/11

10:58 am-6:50 am

2 stops29h 52m

$1,888

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

vie. 5/22

8:45 pm-4:38 pm

3 stops33h 53m

Washington, D.C. Dulles Intl

mié. 5/27

5:38 pm-6:50 pm

2 stops35h 12m

$1,895
Quickest round-trip

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

vie. 9/18

9:15 am-6:33 pm

2 stops23h 18m

Washington, D.C. Dulles Intl

jue. 10/1

4:00 pm-6:50 am

2 stops24h 50m

$1,981

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

vie. 9/18

9:15 am-6:33 pm

2 stops23h 18m

Washington, D.C. Dulles Intl

sáb. 10/3

4:00 pm-7:50 am

2 stops24h 50m

$1,981

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

dom. 5/17

8:45 pm-11:59 pm

2 stops41h 14m

Washington, D.C. Dulles Intl

dom. 5/24

5:35 pm-6:50 pm

2 stops35h 15m

$2,013

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

mié. 7/1

9:30 am-4:26 pm

1 stop20h 56m

Washington, D.C. Dulles Intl

mié. 7/22

1:10 pm-7:00 am

1 stop27h 50m

$2,048

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

vie. 6/26

9:30 am-12:55 am

1 stop29h 25m

Washington, D.C. Dulles Intl

sáb. 7/25

10:20 pm-7:00 am

1 stop42h 40m

$2,066

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

mié. 7/1

9:30 am-6:50 pm

2 stops23h 20m

Washington, D.C. Dulles Intl

vie. 7/24

10:15 pm-7:00 am

2 stops42h 45m

$2,101

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

lun. 5/18

8:45 pm-6:10 pm

1 stop35h 25m

Washington, D.C. Dulles Intl

mié. 6/3

9:00 pm-5:30 pm

1 stop30h 30m

$2,110

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 16 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Sydney-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sydney-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for 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 54 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, November is the cheapest month in which you can book a flight from Sydney to Washington, D.C. Dulles Intl Airport (average of $1,029). Flying from Sydney to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $1,475). 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

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 abril 24, 2026.
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
9,643 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,643 reviews
United Airlines
7.4
Good
9,643 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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?

    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.

  • 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 27% 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, November is the cheapest month in which you can book a flight from Sydney to Washington, D.C. Dulles Intl Airport (average of $1,029). Flying from Sydney to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $1,475). 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

Traveling 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
Alexandria
Tysons
Owings Mills
Springfield
Arlington
Woodbridge
Silver Spring
Herndon
Rockville
Hyattsville
Fredericksburg
Hanover
Laurel
Manassas
Largo
Upper Marlboro
Waldorf
Bowie
Clinton
Hunt Valley

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sydney to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Sydney to Baltimore flights

Top airline flying from Sydney to Dulles Intl

Discover the top airline 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 2,558,603 searches. Data last updated abril 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$885Average$1,501FlexibilityNo cancel feeOn-time69%

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