$788 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 2/8. 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$1,972
Brisbane
Brisbane2 stops$2,150
Coolangatta
Coolangatta2 stops$2,205
Cairns
Cairns2 stops$2,661
Canberra
Canberra2 stops$2,177
Sydney
Sydney2 stops$1,972
Brisbane
Brisbane2 stops$2,150
Coolangatta
Coolangatta2 stops$2,205
Cairns
Cairns2 stops$2,661
Canberra
Canberra2 stops$2,177

Cheap Flight Deals 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.

Recent return flight deals from Dulles Intl to Australia

Recommended return flight deals departing in the coming months from the most popular airlines that fly from Dulles Intl to Australia.
Discover the best prices for you by selecting your travel dates on KAYAK.
Air New Zealand Logo
17:53 - 10:35IAD-SYD
26h 42m2 stops
Air New Zealand Logo
11:50 - 06:53SYD-IAD
33h 03m2 stops
$1,972Air New Zealand
Find Deal
Mon, 28 Jul - Sat, 9 Aug
ANA Logo
12:15 - 09:25IAD-SYD
31h 10m1 stop
ANA Logo
20:55 - 15:35SYD-IAD
32h 40m1 stop
$2,003ANA
Find Deal
Tue, 26 Aug - Tue, 9 Sep
 Logo
17:36 - 11:45IAD-SYD
28h 09m2 stops
 Logo
14:45 - 22:22SYD-IAD
22h 37m2 stops
$2,025
Find Deal
Sat, 27 Sep - Sat, 11 Oct
 Logo
11:09 - 07:05IAD-SYD
29h 56m2 stops
 Logo
09:10 - 06:30SYD-IAD
35h 20m2 stops
$2,067
Find Deal
Mon, 2 Jun - Sat, 14 Jun
Air Canada Logo
09:55 - 08:35IAD-SYD
31h 40m3 stops
Air Canada Logo
11:20 - 07:35SYD-IAD
36h 15m2 stops
$2,228Air Canada
Find Deal
Sun, 26 Oct - Mon, 10 Nov
Alaska Airlines Logo
20:19 - 19:45IAD-SYD
33h 26m2 stops
Alaska Airlines Logo
21:40 - 16:25SYD-IAD
32h 45m2 stops
$2,234Alaska Airlines
Find Deal
Tue, 8 Jul - Tue, 5 Aug
Air Canada Logo
09:45 - 07:20IAD-SYD
31h 35m2 stops
Air Canada Logo
09:20 - 21:05SYD-IAD
25h 45m2 stops
$2,278Air Canada
Find Deal
Sun, 21 Sep - Sat, 4 Oct
Alaska Airlines Logo
19:25 - 19:45IAD-SYD
34h 20m2 stops
Alaska Airlines Logo
21:40 - 06:50SYD-IAD
23h 10m1 stop
$2,300Alaska Airlines
Find Deal
Tue, 3 Jun - Tue, 17 Jun
United Airlines Logo
15:47 - 08:15IAD-MEL
26h 28m2 stops
United Airlines Logo
09:30 - 16:21MEL-IAD
20h 51m1 stop
$2,404United Airlines
Find Deal
Sun, 22 Jun - Sun, 6 Jul
United Airlines Logo
17:53 - 08:15IAD-MEL
24h 22m1 stop
United Airlines Logo
09:30 - 16:21MEL-IAD
20h 51m1 stop
$2,422United Airlines
Find Deal
Tue, 29 Jul - Wed, 13 Aug
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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 time of day to fly to Australia?

The average price for all round-trip flights from Washington, D.C. Dulles Intl Airport to Australia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
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.

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 $1,436 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of return tickets is $2,721 and $2,584 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 19 weeks before departure.

Good to know

Low season

September

High season

December

Cheapest flight

$788
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly (25% 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.

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 8696 reviews
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
6.6Food
Airline reviews

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.

2.0 MediocreAnonymous, Apr 2025IAD - FRA
Read more United Airlines reviews

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.

First class felt like economy, seats were horrible, food was horrible, staff inattentive

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

I hope these comments will find their way to AC customer experience team. Me and my spouse 50 years of aged coming back from 7 days perfect vacation... While boarding in FLL flight AC1621, one of the boarding agents (tall aged african american) man literelly yeld at my wife during the picture talking process. MAM ! STEP !! BACK !!! We are not illegal immegrants beying deported, nor are we in the millitary. We are customers returning home. This was unacceptable. While boarding in YYZ flight AC1154, one of the boarding agents (tall aged caucasian) man criticied with several complesant remarks my passport condition saying that I could not travel intl with it due to stain, decoloration, and BLOOD. My passport does not have blood on it! Yes it might be in less than perfect condition, but their are ways to talk to customer that does not imply not allow a boarding agent to be angry fathery like, or a custom agent looking at a suspicious individual. Both experience were less than acceptable for might I remind you a paying CUSTOMER returning home.

Short flight so no food or entertainment. Good landing at SFO and on time. We were told no carryon luggage yet lots of people were puting bags in overhead compartments. The rules need to be made more clear. I was on the first leg of an international flight and this is the first time I could not have carryon luggage.

This flight didn't happen for me because of overbooking.

My flight was overbooked and they would not let me board. I had to book another flight and pay the full amount of that flight. I did not get any help at all from Air Canada or United Airlines.

Comfortable seats and movies entertainment available. Better experience than the flight from Toronto to Denver.

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.

Poor air traffic controller staffing led to a 50%reduction on flights so we got to wait 4 hrs for our flight! Very disorganized at the gate Poor communication with customers

It was delayed by almost 90 minutes and that messed up our plans but it was beyond UA’s control that is what we heard

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