$704 Find Cheap Flights from Washington Dulles Airport to Australia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Australia departing on 13/8. 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.
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Best Australia Flight Deals from Dulles Intl

Cheapest return prices found by our users on KAYAK in the last 72 hours
Sydney
Sydney2 stops$1,730
Brisbane
Brisbane1 stop$1,412
Coolangatta
Coolangatta2 stops$2,136
Cairns
Cairns2 stops$2,350
Canberra
Canberra2 stops$2,016
Darwin
Darwin2 stops$3,323
Sydney
Sydney2 stops$1,730
Brisbane
Brisbane1 stop$1,412
Coolangatta
Coolangatta2 stops$2,136
Cairns
Cairns2 stops$2,350
Canberra
Canberra2 stops$2,016
Darwin
Darwin2 stops$3,323

Cheap Flights from Dulles Intl to Australia (IAD-AU0)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Dulles Intl to Australia 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 return flight deals from Dulles Intl to Australia

Tue, 4 Nov - Tue, 11 Nov
Qantas Airways Logo
17:16 - 06:30IAD-BNE
22h 14m1 stop
Qantas Airways Logo
09:45 - 16:12BNE-IAD
21h 27m1 stop
$1,412Qantas Airways
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Sat, 1 Nov - Thu, 13 Nov
American Airlines Logo
11:30 - 06:30IAD-BNE
29h 00m1 stop
American Airlines Logo
19:25 - 08:38BNE-IAD
28h 13m2 stops
$1,482American Airlines
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Sun, 3 Aug - Sat, 16 Aug
 Logo
06:10 - 06:55IAD-SYD
34h 45m2 stops
 Logo
12:10 - 23:19SYD-IAD
25h 09m2 stops
$1,741
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Tue, 4 Nov - Tue, 11 Nov
 Logo
09:55 - 08:40IAD-BNE
31h 45m2 stops
 Logo
06:10 - 20:29BNE-IAD
29h 19m3 stops
$1,856
Find Deal
Sat, 15 Nov - Sun, 30 Nov
Air Canada Logo
18:30 - 08:40IAD-BNE
47h 10m2 stops
Air Canada Logo
10:45 - 15:54BNE-IAD
44h 09m2 stops
$1,898Air Canada
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Sat, 1 Nov - Thu, 13 Nov
Air Canada Logo
09:55 - 07:40IAD-BNE
31h 45m2 stops
Air Canada Logo
06:05 - 20:29BNE-IAD
29h 24m3 stops
$1,917Air Canada
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Wed, 10 Sep - Wed, 24 Sep
Air New Zealand Logo
17:55 - 10:50IAD-MEL
26h 55m2 stops
Air New Zealand Logo
12:05 - 23:55MEL-IAD
25h 50m2 stops
$1,928Air New Zealand
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Tue, 2 Sep - Tue, 23 Sep
Air New Zealand Logo
12:45 - 10:50IAD-MEL
32h 05m2 stops
Air New Zealand Logo
12:05 - 23:55MEL-IAD
25h 50m2 stops
$1,950Air New Zealand
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Sun, 14 Sep - Mon, 29 Sep
United Airlines Logo
18:55 - 08:15IAD-MEL
23h 20m1 stop
United Airlines Logo
10:55 - 00:45MEL-IAD
27h 50m1 stop
$2,415United Airlines
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Sun, 3 Aug - Tue, 2 Sep
United Airlines Logo
17:53 - 06:30IAD-BNE
22h 37m1 stop
United Airlines Logo
10:30 - 18:52BNE-IAD
22h 22m1 stop
$2,421United Airlines
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KAYAK's insights & trends for Dulles Intl to Australia flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Australia, 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 from Washington, D.C. Dulles Intl Airport to Australia is February, when tickets cost $1,433 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of return tickets is $2,695 and $2,426 respectively.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Australia?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Australia clicked on KAYAK for each day over the last 12 months.

When flying from Washington Dulles Airport to Australia, you should consider leaving on a Wednesday and avoid Thursdays if you are looking for the best rates. For your return to Washington Dulles Airport, you’ll find the best rates on Fridays and the most expensive ones on Saturdays.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Australia, 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 on the flight from Washington, D.C. Dulles Intl Airport to Australia, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.


Good to know

Low seasonJuly
High seasonDecember
Cheapest flight$704
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly (26% more expensive on average)
Flight from Washington Dulles Airport to Sydney

FAQs - booking Australia flights

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

    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 from Washington Dulles Airport to Australia.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Washington Dulles Airport to Australia 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 from Washington Dulles Airport to Australia?

    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 from Washington Dulles Airport to Australia 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 Australia?

    The cheapest time of day to fly to Australia is generally in the morning, when retur flights cost $1,362 on average. Morning departures are around 6% cheaper than evening flights, on average. The most expensive time of day to fly to Australia is generally at night, which is peak travel time and where the average cost of a ticket is $2,010.

Top airlines flying from Dulles Intl to Australia

Need help choosing which airline to fly with from Dulles Intl to Australia? 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 8744 reviews
7.0Entertainment
7.3Comfort
8.1Crew
7.7Boarding
6.6Food
Airline reviews

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

6.0 GoodDorothy, May 2025IAD - CDG
Read more United Airlines reviews

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

We were delayed in Toronto on the tarmac for THREE hours with no clear indication as to why except that it was not a safety hazard. Pilot did apologize more than once but even he was unable to explain why exactly we were delayed. I overheard the stewards saying that the captain was very frustrated with the situation as well because he was not able to explain why except it had something to do with water supply or system on the aircraft and now we needed to wait for an engineer to approve the aircraft for flight. It was very frustrating and distressing as a passenger and we should have been given complimentary meals at the very least.

Flight was cramped with every seat taken. The food was fine, nothing crazy to write home about. The plane felt dated and needing some TLC, the button for the window shade didn't work and there were no AC outlets to use. When communicating with staff all except one nice lady never seemed happy to help me almost like I was bothering them when asked for things like a glass of water or a snack. The flight was overall fine. It did what was needed which is get me from point A to point B. But it certainly was not special. I don't expect much in economy but I believe economy on a host of other airlines is more memorable and better experience.

The flight was heavily booked so boarding was a lengthy process. The FA’s were rather abrupt during this process but became more gracious as the flight went on. Breakfast (puffed pastry and chewy sausage) was pretty horrible but there was fruit and yogurt which they didn’t mess up. Overall it was fine.

Liked nothing. As per previous segment it was delay delay delay.

Smooth flight. As always dinner could have been more generous. Breakfast was great.

AWFUL. I have had the experience of traveling with many airlines across the world, and hands down United Airlines is the worst. Not one flight was on time, and I don’t think I met one crew member or staff member who wasn’t rude.

I completely missed my flight because the first leg was longer than planned. I had to sleep overnight in the airport because no accommodation was provided and then sent to Trinidad in the morning with an anticipated 7 hour layover before my flight to Georgetown which was now with Caribbean Airlines. I tried twice with customer service to see if they could put me on an earlier flight which had seats available but was told it wasn’t possible.

The layover was 6 PLUS hours and we were only given a $15.00 voucher. We missed our first activity in Quebec due to the delay.

Miserable staff as it was a late/delayed flight and crew wasn’t in the best spirits. Completely understood as neither was most of the passengers. Still unacceptable l.

Or the greatest and it ended up picking us up from Chicago to Toronto not sure who was tesponsible for the 4 hr delay. United should have been properly prepared for a scheduled flight from Austin to Chicago and they were not.

It was a short flight, and no entertainment. That was not a problem for us, but there is no option for "not applicable". There was a bit of turbulence, so there was no food service.

the fact air Canada changed my flight from 850 PM to 815 AM with zero regard to the plans i made that last day, the cost i lost out on as things were non refundable amd shortening my first vacation in 7 years sickened me. when we purchase a service thats whats we expect. when we want to change the service we have to pay for that option but you do whatever you want . i called accessibility dept as i have a cpap and an implanted loop recorder first person said no problem just let security know you cant go thru scanners. then i got an email saying i had to fill out a fit to fly form . which again there was NO need to have that none. But that cost me money and time to have a doctor fill it out. then when i went to check in online i was declined i had to see a person at the airport instead. i couldnt get my boarding pass like everyone elseso here I was contacting air canada so I would have a easy travel experience and it ended up being a nightmare with more work for me, more cost and time. the flight itself was great the nightmare around it i will never subject myself to again. i tried to stick with supporting Canada but Air Canada was not worth supporting. very disappointed especially with a dept that is supposed to help disabled people not make an already challenging event not worth going thru at all.

Most courteous, helpful employees and all flights were on time.

All was good except for the seats, not very comfy.

2.5 hour delay sitting in the plane on the tarmac, you tell me how the experience was

Not enough electronic outlets for charging in the Air Canada waiting to board area but the Most important thing….the plane was booked to only 40% capacity and my row of 2 other seats were empty. My row happened to be one of the few rows that did NOT have raising arm rests. The flight attendant made effort to seat me in a different row. I needed wheelchair assistance due to a cyst on my knee and struggled to move from seat to seat to get to the row. Those 2 empty seats tormented me the entire 15+ hour flight as I had to be upright the entire flight and was not able to elevate my knee. Lots of other passengers were laying down due to the arm rest being able to retract. It is a shame that he couldn’t be gracious and find a row that I could move to.

Almost missed boarding, mass line up made me be the last person. Wish the announcement was more loud, didn’t hear what seats or zones were ready. Being last also made finding space for my roller bag. Fortunately the flight attendants made it work!

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