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$845+ 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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
3 Sep — 10 Sep1
1 adult

Flights to Dulles Intl in 2025

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 29 August 2025.

Return from

$1,102

One-way from

$845

Popular in

December

Cheapest in

February

Average price

$1,565
Air Canada
  • Air Canada
  • 15/9-23/9
  • 4 total stops
  • 57h 30m total
  • Sydney to Washington, D.C.
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15/10
  • 15/10
  • 3 total stops
  • 54h 49m total
  • Sydney to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($344 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($95 potential savings vs. average return price).
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Average for return flights in August 2025
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Find flight deals to Dulles Intl Airport

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 29 August 2025.

Mon 15/909:20SYD - IAD
2 stops25h 45mAir Canada
Tue 23/909:35IAD - SYD
2 stops31h 45mAir Canada
Deal found 26/8$1,102
Mon 8/909:30SYD - IAD
1 stop29h 00mUnited Airlines
Wed 24/912:45IAD - SYD
1 stop28h 15mUnited Airlines
Deal found 29/8$1,260
Sat 25/1010:20SYD - IAD
2 stops44h 34mAir Canada
Thu 30/1009:00IAD - SYD
2 stops32h 35mAir Canada
Deal found 27/8$1,268
Wed 15/1010:30SYD - IAD
1 stop20h 53mUnited Airlines
Wed 22/1013:20IAD - SYD
2 stops27h 35mUnited Airlines
Deal found 28/8$1,275
Mon 13/1010:30SYD - IAD
2 stops26h 58mUnited Airlines
Mon 20/1018:58IAD - SYD
1 stop21h 57mUnited Airlines
Deal found 29/8$1,281
Tue 16/910:20SYD - IAD
1 stop22h 32mLufthansa
Wed 24/917:40IAD - SYD
1 stop23h 20mLufthansa
Deal found 27/8$1,295
Sun 12/1010:20SYD - IAD
2 stops25h 45mAir Canada
Sun 19/1009:35IAD - SYD
2 stops55h 45mAir Canada
Deal found 28/8$1,312
Wed 15/1010:20SYD - IAD
2 stops26h 05mAir Canada
Wed 22/1010:20IAD - SYD
2 stops31h 00mAir Canada
Deal found 28/8$1,314

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 29 August 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

Mon 15/9

09:20-21:05

2 stops25h 45m

Washington, D.C. Dulles Intl

Tue 23/9

09:35-07:20

2 stops31h 45m

$1,102

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 4/11

11:20-20:54

2 stops25h 34m

Washington, D.C. Dulles Intl

Tue 18/11

09:45-09:35

2 stops31h 50m

$1,102

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 23/10

10:20-21:05

2 stops49h 45m

Washington, D.C. Dulles Intl

Thu 30/10

09:45-08:35

2 stops31h 50m

$1,102

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mon 8/9

09:30-00:30

1 stop29h 00m

Washington, D.C. Dulles Intl

Wed 24/9

12:45-07:00

1 stop28h 15m

$1,260

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 16/9

09:20-09:38

2 stops38h 18m

Washington, D.C. Dulles Intl

Wed 24/9

14:25-07:20

2 stops26h 55m

$1,260

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 25/10

10:20-15:54

2 stops44h 34m

Washington, D.C. Dulles Intl

Thu 30/10

09:00-08:35

2 stops32h 35m

$1,268

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mon 8/9

09:10-22:48

2 stops27h 38m

Washington, D.C. Dulles Intl

Wed 24/9

11:47-07:05

2 stops29h 18m

$1,275

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 15/10

17:20-09:09

3 stops54h 49m

$845

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 14/10

10:20-21:05

2 stops25h 45m

$892

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 15/10

16:40-16:10

1 stop38h 30m

$953

Flights are sorted by cheapest return flights first.

Deals found on 28/8

Showing 1-10 of 15 results
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

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 22 August 2025.

To ensure you get the cheapest price possible for a flight to Dulles Intl, you should look to book at least 27 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.

When is the cheapest time to fly to Dulles Intl?

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

Users looking for the lowest fares to Dulles Intl should consider flying on Tuesday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Saturday evenings, when prices are usually at their highest.

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 29 August 2025.
See what other customers who have flown with Air New Zealand, Qantas Airways, andVirgin Australia 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
505 reviews
Check prices

Overall

8.0

Entertainment

7.4

Food

7.3

Boarding

8.2

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Air New Zealand
8.0
Very Good
505 reviews
Air New Zealand
8.0
Very Good
505 reviews
Check prices

Overall

8.0

Entertainment

7.4

Food

7.3

Boarding

8.2

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Qantas Airways
7.5
Good
905 reviews
Air New Zealand
8.0
Very Good
505 reviews
Check prices

Overall

8.0

Entertainment

7.4

Food

7.3

Boarding

8.2

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Virgin Australia
7.5
Good
415 reviews
Air New Zealand
8.0
Very Good
505 reviews
Check prices

Overall

8.0

Entertainment

7.4

Food

7.3

Boarding

8.2

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
United Airlines
7.4
Good
8,941 reviews
Air New Zealand
8.0
Very Good
505 reviews
Check prices

Overall

8.0

Entertainment

7.4

Food

7.3

Boarding

8.2

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Air Canada
7.1
Good
10,000 reviews
Air New Zealand
8.0
Very Good
505 reviews
Check prices

Overall

8.0

Entertainment

7.4

Food

7.3

Boarding

8.2

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

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 $193, while return flights cost around $1,461.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around $959, however they can be found for as little as $953.

  • 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 55 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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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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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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