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$623+ Cheap flights to Dulles Intl

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
1 Sep — 8 Sep1
1 adult
1 adult, Economy, 0 bags

Flights to Dulles Intl in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Dulles Intl Airport
Explore the most affordable flight options available to Dulles Intl Airport. Find the lowest fares based on data from user searches, with prices last updated on 2 August 2026.

Wed 9/913:15
SYD
-
IAD
3 stops35h 12m
Multiple Airlines
Fri 25/911:12
IAD
-
SYD
3 stops34h 38m
Multiple Airlines
Deal found 31/7$1,143
Wed 9/909:20
SYD
-
IAD
2 stops36h 23m
Air Canada
Tue 22/908:29
IAD
-
SYD
1 stop32h 51m
Air Canada
Deal found 30/7$1,345
Wed 9/909:20
SYD
-
IAD
2 stops36h 23m
Air Canada
Sun 20/922:10
IAD
-
SYD
2 stops43h 10m
Air Canada
Deal found 31/7$1,353
Thu 3/909:20
SYD
-
IAD
2 stops40h 24m
Air Canada
Tue 8/908:15
IAD
-
SYD
2 stops33h 05m
Air Canada
Deal found 27/7$1,392
Tue 27/1010:20
SYD
-
IAD
2 stops25h 03m
Air Canada
Tue 10/1109:55
IAD
-
SYD
2 stops31h 40m
Air Canada
Deal found 1/8$1,399

Find flight deals to Dulles Intl Airport

Find the latest flights to Dulles Intl in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 2 August 2026.

Return from

$1,143

One-way from

$623

Popular in

December

Cheapest in

September

Average price

$1,451
9/9-25/9
  • 9/9-25/9
  • 6 total stops
  • 69h 50m total
  • Sydney to Washington, D.C.
Search Deals
9/9
  • 9/9
  • 3 total stops
  • 35h 12m total
  • Sydney to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($175 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($40 potential savings vs. average return price).
Search Deals
Average for return flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Locate flights to Dulles Intl that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 2 August 2026.
Use the filters below to find and compare flights to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 3/9

09:20-11:44

2 stops40h 24m

Washington, D.C. Dulles Intl

Tue 8/9

08:15-07:20

2 stops33h 05m

$1,392

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 9/9

09:20-11:13

3 stops39h 53m

Washington, D.C. Dulles Intl

Sun 20/9

09:07-07:20

2 stops32h 13m

$1,633

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 29/8

09:20-21:18

2 stops25h 58m

Washington, D.C. Dulles Intl

Sun 13/9

22:10-07:20

2 stops43h 10m

$1,662

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 27/10

21:40-17:50

3 stops35h 10m

Washington, D.C. Dulles Intl

Tue 10/11

18:40-19:45

3 stops33h 05m

$1,731

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 29/8

20:45-18:14

3 stops35h 29m

Washington, D.C. Dulles Intl

Sun 13/9

17:57-18:50

2 stops34h 53m

$2,152

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 27/1

11:50-16:25

1 stop20h 35m

Washington, D.C. Dulles Intl

Sun 31/1

22:10-09:05

1 stop42h 55m

$2,272
Fastest return journey

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 17/11

11:20-16:23

1 stop21h 03m

Washington, D.C. Dulles Intl

Wed 20/1

17:30-09:05

1 stop23h 35m

$2,446

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mon 7/12

09:20-16:06

1 stop22h 46m

Washington, D.C. Dulles Intl

Sun 27/12

22:10-06:20

1 stop40h 10m

$2,475
Cheapest one-way

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mon 7/9

14:05-05:01

3 stops52h 56m

$1,029

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 4/11

11:30-05:51

2 stops34h 21m

$1,399

Flights are sorted by cheapest return flights first.

Deals found on 30/7

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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 to Washington, D.C. Dulles Intl Airport

What are the cheapest airlines that fly to Dulles Intl?

The cheapest airlines flying from Sydney to Dulles Intl are Qantas Airways, Air Canada and Air New Zealand.

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 2 August 2026.
See what other customers who have flown with Air New Zealand,Qantas Airways, andUnited Airlines to the United States have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very Good
657 reviews
Check prices

Comfort

7.9

Food

7.5

Overall

8.0

Boarding

8.2

Entertainment

7.4

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Air New Zealand
8.0
Very Good
657 reviews
Air New Zealand
8.0
Very Good
657 reviews
Check prices

Comfort

7.9

Food

7.5

Overall

8.0

Boarding

8.2

Entertainment

7.4

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Qantas Airways
7.5
Good
1,074 reviews
Air New Zealand
8.0
Very Good
657 reviews
Check prices

Comfort

7.9

Food

7.5

Overall

8.0

Boarding

8.2

Entertainment

7.4

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
United Airlines
7.4
Good
10,061 reviews
Air New Zealand
8.0
Very Good
657 reviews
Check prices

Comfort

7.9

Food

7.5

Overall

8.0

Boarding

8.2

Entertainment

7.4

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
American Airlines
7.1
Good
11,846 reviews
Air New Zealand
8.0
Very Good
657 reviews
Check prices

Comfort

7.9

Food

7.5

Overall

8.0

Boarding

8.2

Entertainment

7.4

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Air Canada
7.1
Good
11,419 reviews
Air New Zealand
8.0
Very Good
657 reviews
Check prices

Comfort

7.9

Food

7.5

Overall

8.0

Boarding

8.2

Entertainment

7.4

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.

FAQs about flying to Dulles Intl

  • Can I find cheaper flights to Dulles Intl if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Dulles Intl on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Dulles Intl?

    Based on reviews from Cheapflights users, American Airlines is rated the highest out of the airlines that fly to Dulles Intl.

  • What is the cheapest airport to fly to in Dulles Intl?

    Washington, D.C. Dulles Intl is currently the cheapest airport to fly to in Dulles Intl. One-way flights to Washington, D.C. Dulles Intl typically cost $1,084, while return flights cost around $587.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around $731, however they can be found for as little as $587.

  • Where does the fastest flight to Dulles Intl depart from?

    For those looking to save time traveling to Dulles Intl, Brisbane offers the quickest one-way flight (19 hours 48 minutes).

  • Does Washington, D.C. Dulles Intl have car hire?

    Yes. Those touching down at Washington, D.C. Dulles Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Washington, D.C. Dulles Intl?

    Yes. Washington, D.C. Dulles Intl has hotels nearby for those requiring accommodations. Sleepbox Lounge Iad, Dulles International Airport is the closest property to Washington, D.C. Dulles Intl (0.0 km away from Washington, D.C. Dulles Intl).

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
Laurel
Linthicum Heights

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How does Cheapflights help users find flights to Dulles Intl?

Deals for Dulles Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

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