$985+ 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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
5 Jan — 12 Jan1
1 adult
1 adult, Economy, 0 bags

Flights to Dulles Intl in 2025

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 6 December 2025.

Thu 11/1212:10SYD - IAD
2 stops25h 15mUnited Airlines
Tue 20/118:45IAD - SYD
1 stop22h 20mUnited Airlines
Deal found 4/12$1,769
Thu 18/1212:10SYD - IAD
2 stops22h 35mUnited Airlines
Tue 20/116:10IAD - SYD
1 stop25h 05mUnited Airlines
Deal found 5/12$1,775
Wed 24/1212:10SYD - IAD
1 stop20h 20mUnited Airlines
Wed 7/116:10IAD - SYD
1 stop22h 10mUnited Airlines
Deal found 5/12$1,781
Sun 14/1212:10SYD - IAD
1 stop23h 16mUnited Airlines
Tue 20/116:10IAD - SYD
1 stop25h 05mUnited Airlines
Deal found 5/12$1,850
Thu 18/1212:10SYD - IAD
2 stops25h 15mUnited Airlines
Fri 9/122:20IAD - SYD
1 stop40h 00mUnited Airlines
Deal found 5/12$1,855
Sat 13/1211:20SYD - IAD
1 stop23h 34mUnited Airlines
Tue 20/116:10IAD - SYD
1 stop25h 05mUnited Airlines
Deal found 5/12$1,856
Sat 13/1211:20SYD - IAD
1 stop21h 06mUnited Airlines
Sat 24/115:19IAD - SYD
1 stop25h 46mUnited Airlines
Deal found 5/12$1,924
Sat 27/1210:40SYD - IAD
2 stops23h 21mDelta
Sat 10/107:00IAD - SYD
2 stops33h 30mDelta
Deal found 6/12$1,930
Sat 20/1211:50SYD - IAD
1 stop20h 38mUnited Airlines
Thu 15/119:45IAD - SYD
1 stop42h 35mUnited Airlines
Deal found 4/12$1,957
Tue 23/1211:20SYD - IAD
1 stop24h 20mVirgin Australia
Sat 10/116:10IAD - SYD
1 stop22h 10mVirgin Australia
Deal found 5/12$2,037

Find flight deals to Dulles Intl Airport

Find the latest flights to Dulles Intl in 2025, 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 6 December 2025.

Return from

$1,695

One-way from

$985

Popular in

December

Cheapest in

February

Average price

$2,562
Qantas Airways
  • Qantas Airways
  • 24/1-31/1
  • 4 total stops
  • 66h 14m total
  • Sydney to Washington, D.C.
4/2
  • 4/2
  • 3 total stops
  • 43h 53m total
  • Sydney to Washington, D.C.
Highest demand for flights based on searches. 11% potential increase in price ($248 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($65 potential savings vs. average return price).
Average for return flights in December 2025

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 6 December 2025.
Use the filters below to find and compare flights to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Sydney

Route

Depart

Return

Price

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 17/12

12:10-21:25

2 stops25h 15m

Washington, D.C. Dulles Intl

Wed 21/1

18:45-09:05

1 stop22h 20m

$1,775

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 18/12

12:10-18:45

2 stops22h 35m

Washington, D.C. Dulles Intl

Sat 24/1

19:45-06:20

1 stop42h 35m

$1,775

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 18/12

11:50-16:24

1 stop20h 34m

Washington, D.C. Dulles Intl

Sun 25/1

18:45-09:05

1 stop22h 20m

$1,775

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 16/12

14:00-19:26

1 stop21h 26m

Washington, D.C. Dulles Intl

Wed 21/1

12:50-07:00

1 stop26h 10m

$1,775

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 18/12

12:10-16:30

1 stop20h 20m

Washington, D.C. Dulles Intl

Tue 20/1

14:10-09:15

1 stop27h 05m

$1,775

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 16/12

12:10-21:18

2 stops25h 08m

Washington, D.C. Dulles Intl

Sun 25/1

18:45-09:05

1 stop22h 20m

$1,775

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 23/12

12:10-21:04

2 stops24h 54m

Washington, D.C. Dulles Intl

Sat 10/1

19:45-06:20

1 stop42h 35m

$1,775

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 16/12

12:10-21:22

2 stops25h 12m

Washington, D.C. Dulles Intl

Mon 19/1

18:45-09:05

1 stop22h 20m

$1,775

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 17/12

11:20-19:08

2 stops23h 48m

Washington, D.C. Dulles Intl

Sun 25/1

18:45-09:05

1 stop22h 20m

$1,775

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Fri 19/12

12:10-16:30

1 stop20h 20m

Washington, D.C. Dulles Intl

Sun 25/1

18:15-09:15

1 stop23h 00m

$1,850

Flights are sorted by cheapest return flights first.

Deals found on 5/12

Showing 1-10 of 22 results
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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

When is the best time to book a flight to Dulles Intl?

Use this chart to determine the optimal time to book a return flight from Sydney to Dulles Intl. Price data was last updated on 28 November 2025.

To ensure you get the cheapest price possible for a flight to Dulles Intl, 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.

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 6 December 2025.
See what other customers who have flown with Air New Zealand, Virgin Australia, andQantas Airways 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.

Entertainment

7.5

Food

7.4

Crew

8.5

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LAX - ORD

Overall good experience with united . I fly united most part so nothing out of obvious i guess

Entertainment

7.5

Food

7.4

Crew

8.5

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LAX - ORD

Overall good experience with united . I fly united most part so nothing out of obvious i guess

Entertainment

7.5

Food

7.4

Crew

8.5

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LAX - ORD

Overall good experience with united . I fly united most part so nothing out of obvious i guess

Entertainment

7.5

Food

7.4

Crew

8.5

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LAX - ORD

Overall good experience with united . I fly united most part so nothing out of obvious i guess

Entertainment

7.5

Food

7.4

Crew

8.5

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LAX - ORD

Overall good experience with united . I fly united most part so nothing out of obvious i guess

Entertainment

7.5

Food

7.4

Crew

8.5

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LAX - ORD

Overall good experience with united . I fly united most part so nothing out of obvious i guess

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 $239, while return flights cost around $508.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around $615, however they can be found for as little as $508.

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

    For those looking to save time traveling to Dulles Intl, Melbourne offers the quickest one-way flight (20 hours 52 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
Linthicum Heights

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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights to Dulles Intl.

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Yes, we can. To see specific flights to Dulles Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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