$502 Find Cheap Flights from Australia to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Dulles Intl departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C., as well as popular online travel agencies
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Cheap Flights from Australia to Dulles Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Australia to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Australia to Dulles Intl

Thu, Nov 20 - Mon, Dec 1
Air Canada Logo
10:45 am - 11:23 amBNE-IAD
39h 38m2 stops
Air Canada Logo
9:45 am - 8:45 amIAD-BNE
32h 00m2 stops
$843Air Canada
Find Deal
Tue, Oct 21 - Sun, Oct 26
Air Canada Logo
10:20 am - 11:13 amBNE-IAD
38h 53m2 stops
Air Canada Logo
9:45 am - 7:45 amIAD-BNE
32h 00m2 stops
$888Air Canada
Find Deal
Thu, Nov 20 - Mon, Dec 1
Multiple Airlines Logo
6:10 am - 8:26 pmBNE-IAD
29h 16m3 stops
Multiple Airlines Logo
9:45 am - 8:45 amIAD-BNE
32h 00m2 stops
$909Multiple Airlines
Find Deal
Tue, Nov 18 - Fri, Nov 21
Multiple Airlines Logo
6:10 am - 8:26 pmBNE-IAD
29h 16m3 stops
Multiple Airlines Logo
9:45 am - 8:45 amIAD-BNE
32h 00m2 stops
$962Multiple Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
12:10 pm - 7:26 pmSYD-IAD
22h 16m1 stop
United Airlines Logo
3:25 pm - 9:15 amIAD-SYD
25h 50m1 stop
$1,068United Airlines
Find Deal
Wed, Feb 18 - Sun, Feb 22
United Airlines Logo
12:10 pm - 4:29 pmSYD-IAD
20h 19m1 stop
United Airlines Logo
10:10 pm - 9:05 amIAD-SYD
42h 55m1 stop
$1,070United Airlines
Find Deal
Thu, Oct 23 - Tue, Nov 4
Alaska Airlines Logo
9:40 pm - 4:42 pmSYD-IAD
34h 02m1 stop
Alaska Airlines Logo
6:13 pm - 7:45 pmIAD-SYD
33h 32m2 stops
$1,071Alaska Airlines
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Tue, Oct 7 - Tue, Oct 28
Qantas Airways Logo
10:00 am - 10:51 pmMEL-IAD
27h 51m2 stops
Qantas Airways Logo
5:37 pm - 5:00 amIAD-MEL
44h 23m1 stop
$1,075Qantas Airways
Find Deal
Tue, Oct 7 - Tue, Oct 28
Qantas Airways Logo
10:00 am - 10:51 pmMEL-IAD
27h 51m2 stops
Qantas Airways Logo
5:37 pm - 10:05 amIAD-MEL
25h 28m2 stops
$1,109Qantas Airways
Find Deal
Thu, Oct 16 - Thu, Oct 23
Alaska Airlines Logo
9:40 pm - 4:42 pmSYD-IAD
34h 02m2 stops
Alaska Airlines Logo
7:41 pm - 7:45 pmIAD-SYD
33h 04m2 stops
$1,121Alaska Airlines
Find Deal

Everything you should know

When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 26% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
March
Cheapest • 22% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$843
Overall average: $1,307
Air Canada
Thu 11/20Mon 12/1
BNE - IAD • 2 stops
Cheapest one-way
$502
Typical prices: $814-1111
Multiple Airlines
Wed 10/15
SYD - IAD • 3 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Booking Insights

KAYAK's insights & trends for flights to Dulles Intl

Get data-powered insights and trends for flights to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Washington, D.C. Dulles Intl Airport is March, where tickets cost $1,014 on average for return flights. On the other hand, the most expensive months are December and January, where the average cost of tickets from Australia is $1,608 and $1,439 respectively. For one-way flights, the best month to travel is March with an average price of $1,014.

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 3 weeks before departure, which saves you about 26% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$502
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 19% increase in price.
Flight from Sydney to Washington Dulles Airport

FAQs - booking Washington Dulles Airport flights

  • How far is Washington, D.C. Dulles Intl Airport from central Washington, D.C.?

    There are 22 miles between Washington, D.C. city center and Washington, D.C. Dulles Intl Airport.

  • What is the cheapest day to fly to Washington, D.C.?

    Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Thursday where round-trip tickets can be as cheap as $1,250. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $2,078 on average.

  • How does KAYAK find such low prices on flights to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Washington, D.C. Dulles Intl Airport?

    The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the morning, when round-trip flights cost $1,399 on average. The most expensive time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,554.

  • How many direct flights to Washington, D.C. Dulles Intl Airport are there each week?

    Each week there are around 2,385 direct flights from within Australia to Washington, D.C. Dulles Intl Airport. The most common day for departures is Monday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Washington Dulles Airport

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington Dulles Airport flight deals.

Reviews of the top airlines flying from Australia to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Australia to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8929 reviews
8.1Crew
7.7Boarding
7.3Comfort
6.6Food
7.1Entertainment
Airline reviews

IAD with the archaic people movers is just a place to be avoided.

10.0 ExcellentThomas, Aug 2025CMH - IAD
Read more United Airlines reviews

IAD with the archaic people movers is just a place to be avoided.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

This is the best united airlines flight that I took. The crew was very friendly and the food was tasty!

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

United airlines, mediocre at best. No issues , nothing great . Worked for me

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

I liked the behaviour of the crew members.The flight was good.

1 hour late No hot drinks No restroom in the back of the plane

I swear airplane seats keep getting smaller and smaller but everything else was great. Smooth sailing and we got in early.

No food to provide, they forgot that, in some cases, people stay at the airport for hours without food. Now, to provide them with food, they have to ask them to pay, because some don't have money. That way, they can't eat.

After a long flight from Tokyo, our connecting flight home was canceled due to “maintenance” while we were on our layover in Toronto. Very frustrating to close out our honeymoon, although I’m sure others had it even worse during last week’s strike. Air Canada staff at Pearson Airport are the one thing that kept me remotely at peace during this — they were very helpful and deserve a lot of props. But I would not fly Air Canada again.

I had wonderful wheelchair assistance through the Montreal airport onto the flight. Air Canada was excellent in this both at the Fredericton airport and the Montreal one where an attendant helped us through customs as well as transport and baggage security.

Horrible flight cancelled had to buy another very expensive ticket

Flight was cancelled last minute due to Air Canada strike leaving us stranded and having to stressfully find a way home that cost hundreds of dollars in excess cost added to the trip. Having just experienced our mother's funeral service, this was not a good way to end our trip.

Air Canada marooned me in Canada with no way back home during my summer vacation. I had to buy a last minute flight ticket for over $500 to make it back home. I have their credit card and have flown them for years. Never again.

Flight was cancelled last minute. Had to scramble and purchase a $2000 flight through a separate airlines. Stuck in Toronto two extra days. Missed my first two days on a new job. Had to rent a car for an additional two days. Scrambled to fins a place to live those extra two days. Spent a ton of extra money and lost a lot of money, as well as made a poor impression at work. Difficult difficult difficult

Traveling to a place near Dulles Intl?

Book flights to Dulles Intl if you plan to visit one of these locations
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Everything you need to know for your flight to Dulles Intl

Information on the airport you'll fly into in Washington, D.C.

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