$494 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 9/10. 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

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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, Oct 16 - Sun, Dec 7
Air Canada Logo
10:20 am - 4:28 pmBNE-IAD
44h 08m2 stops
Air Canada Logo
10:14 pm - 8:45 amIAD-BNE
43h 31m2 stops
$838Air Canada
Find Deal
Mon, Oct 13 - Sun, Nov 9
Air Canada Logo
10:20 am - 9:05 pmSYD-IAD
25h 45m2 stops
Air Canada Logo
10:11 pm - 9:35 amIAD-SYD
43h 24m2 stops
$878Air Canada
Find Deal
Tue, Oct 7 - Tue, Oct 28
 Logo
7:00 am - 9:38 amMEL-IAD
41h 38m3 stops
 Logo
12:35 pm - 12:05 pmIAD-MEL
32h 30m3 stops
Tue, Oct 7 - Tue, Oct 28
 Logo
7:00 am - 9:25 pmMEL-IAD
29h 25m3 stops
 Logo
12:35 pm - 12:05 pmIAD-MEL
32h 30m3 stops
Wed, Sep 3 - Wed, Sep 10
Qantas Airways Logo
3:05 pm - 10:48 pmMEL-IAD
21h 43m1 stop
Qantas Airways Logo
11:47 am - 5:00 amIAD-MEL
27h 13m1 stop
$1,048Qantas Airways
Find Deal
Wed, Sep 3 - Wed, Sep 10
Qantas Airways Logo
3:05 pm - 10:48 pmMEL-IAD
21h 43m1 stop
Qantas Airways Logo
11:47 am - 5:00 amIAD-MEL
27h 13m1 stop
$1,051Qantas Airways
Find Deal
Wed, Sep 3 - Wed, Sep 10
American Airlines Logo
3:05 pm - 10:07 amMEL-IAD
33h 02m2 stops
American Airlines Logo
11:18 am - 5:00 amIAD-MEL
27h 42m2 stops
$1,092American Airlines
Find Deal
Mon, Sep 29 - Wed, Oct 22
American Airlines Logo
3:05 pm - 10:48 pmMEL-IAD
21h 43m1 stop
American Airlines Logo
8:09 am - 5:00 amIAD-MEL
29h 51m2 stops
$1,101American Airlines
Find Deal
Tue, Oct 7 - Wed, Oct 15
United Airlines Logo
11:55 am - 9:10 pmMEL-IAD
24h 15m1 stop
United Airlines Logo
6:30 pm - 8:30 amIAD-MEL
23h 00m1 stop
$1,118United Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 28
United Airlines Logo
11:55 am - 12:45 amMEL-IAD
27h 50m1 stop
United Airlines Logo
3:25 pm - 9:00 amIAD-MEL
26h 35m1 stop
$1,124United Airlines
Find Deal
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 $1,049 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 $1,621 and $1,439 respectively. For one-way flights, the best month to travel is March with an average price of $1,049.

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 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.


Good to know

Low seasonFebruary
Cheapest flight$494
Best time to beat the crowds with an average 22% 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 2,739 direct flights from within Australia to Washington, D.C. Dulles Intl Airport. The most common day for departures is Sunday, 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 8896 reviews
6.6Food
7.1Entertainment
7.7Boarding
8.1Crew
7.3Comfort
Airline reviews

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

8.0 ExcellentHal, Jul 2025FRA - IAD
Read more United Airlines reviews

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!!

Very nice and clean plane. Transit time between flights was tight though

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

I did not noticed baggage was separate - I had assumed international flights included luggage, so it surprised me I had to pay to check a bag.

Flight got delayed for no reason. And Air Canada was doing 3 boardings via the same gate. It was chaotic!

My return flight experience was one of the worst times I have had traveling anywhere this year. Not because of the flight. It was because there was not enough time allocated to deplane, go through U.S. Customs and U.S. Security to get to the gate for the connecting flight to Boston which I missed, There was well less than an hour between my landing in Montreal from Prince Edward Island to my connecting gate. I even called Air Canada on the morning of my return and noted my concern over the short layover time, not more that 45 minutes. The initial flight was four minutes late. I was seated in the rear of the first aircraft, and it took at least 20 minutes to deplane. The U.S. Customs was a considerable distance from the gate at which we landed. The need for double security seemed unnecessary and redundant. The distance from the security to my gate was again fairly great, and the wrong gate number was listed on my boarding pass. The agent I approached at the flight that was going to Newark, New Jersey was too busy to answer my question as to what gate was for Boston. When I got to the right gate, they had just closed the door to the aircraft even though I arrived a minute late. If I knew the distance to Customs and from Security to the gate, I would have asked for a seat on the next available flight which was 4:30 pm. When I made my call at 6:00AM that morning. When I asked the agent at the Boston gate, he said that the 4:30 flight was already “OVERBOOKED!” I was put on an 8:30 PM flight and didn’t get home until MIDNIGHT. I then had to care for a barnful of hungry animals and didn’t get to bed until 2:00 AM.

From Montreal to Cincinnati the flight was perfect! Flight free and everyone was perfect and a pleasure to travel with. But from Casablanca to Montreal the flight crew were quite cold, unhelpful, also seemed to scold many passengers instead of simply educating or instructing them. There were a couple for sure I could describe but not name… i was really shocked bc my experience w air Canada is typically a good one at the very least. It seemed something was very much so I’m the air w the crew. The two older lady crew members and the male were amazing but the younger lady crew members w the exception of one were very clique-y and snarky, sassy

Seating wasn’t too cramped; I don’t understand how luggage bins get full if there are enough for each person. Shouldn’t there be room for the designated carry-on and personal item for each passenger at their seat? THEN, IF for some reason extra room is available for someone who prefers it, then shifts can occur. I’m simply saying it seems that I should have primary access to the storage bin at my seat and underneath in front of me. It was suggested that I go to the back of the plane to store my carry-on when I paid to have access to the first seat after 1st class. The additional stress and inconvenience could be avoided and I think all passengers and flight crew are interested in guidelines that are fair, clear, and reduce tension.

Wonderful airline. All staff were pleasant and helpful. What is sad is that it wasn’t grand gestures just everyday pleasantness and friendliness that are missing from the other airlines I have flown recently.

Friendly efficient crew, but plane had no way to charge phone. That is a near necessity with today’s travel where we carry out travel documents on our phones.

The flight was delayed for 2 hrs. We were changed to a smaller plane, which was shaking a lot.

Bad service as well. Another 3hr delayed flight from chicago to Charlotte.

Orlando to Canada, despite being close and an international flight, the plane was not at all comfortable. It felt like the chair was being pushed forward, in addition to not having a TV and having to choose from a tiny glass of drink, for example, water or soda. I couldn't have both. When I asked the flight attendant for an extra glass of water, she looked at me with an ugly face. This is ridiculous. They don't want to give water to passengers. I will never fly with this airline again in my life.

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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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