$740 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 8/9. 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 Australia

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Booking Insights
Flights Deals

Cheap Flights from Dulles Intl to Australia

Cheapest return prices found by our users on KAYAK in the last 72 hours
Sydney
Sydney2 stops$1,296
Brisbane
Brisbane2 stops$1,522
Coolangatta
Coolangatta2 stops$1,671
Cairns
Cairns2 stops$2,109
Canberra
Canberra2 stops$1,881
Darwin
Darwin2 stops$2,877
Alice Springs
Alice Springs2 stops$3,147
Sydney
Sydney2 stops$1,296
Brisbane
Brisbane2 stops$1,522
Coolangatta
Coolangatta2 stops$1,671
Cairns
Cairns2 stops$2,109
Canberra
Canberra2 stops$1,881
Darwin
Darwin2 stops$2,877
Alice Springs
Alice Springs2 stops$3,147

Book Cheap Dulles Intl to Australia Plane Tickets

 
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, 28 Oct - Mon, 3 Nov
Air Canada Logo
09:55 - 08:35IAD-SYD
31h 40m2 stops
Air Canada Logo
11:20 - 20:59SYD-IAD
25h 39m2 stops
$1,296Air Canada
Find Deal
Tue, 12 Aug - Tue, 19 Aug
Air Canada Logo
08:19 - 07:20IAD-SYD
33h 01m1 stop
Air Canada Logo
09:20 - 06:31SYD-IAD
35h 11m1 stop
$1,297Air Canada
Find Deal
Sun, 2 Nov - Mon, 10 Nov
 Logo
12:35 - 12:40IAD-MEL
32h 05m3 stops
 Logo
07:25 - 20:29MEL-IAD
29h 04m3 stops
$1,436
Find Deal
Tue, 21 Oct - Thu, 6 Nov
 Logo
15:36 - 13:05IAD-MEL
30h 29m3 stops
 Logo
07:45 - 20:29MEL-IAD
28h 44m3 stops
$1,519
Find Deal
Wed, 19 Nov - Wed, 17 Dec
Air New Zealand Logo
12:55 - 09:25IAD-MEL
28h 30m2 stops
Air New Zealand Logo
10:35 - 21:22MEL-IAD
26h 47m2 stops
$1,993Air New Zealand
Find Deal
Wed, 19 Nov - Wed, 17 Dec
Air New Zealand Logo
12:55 - 09:25IAD-MEL
28h 30m2 stops
Air New Zealand Logo
10:35 - 21:22MEL-IAD
26h 47m2 stops
$1,994Air New Zealand
Find Deal
Sun, 30 Nov - Wed, 10 Dec
Qantas Airways Logo
17:03 - 06:30IAD-BNE
22h 27m1 stop
Qantas Airways Logo
09:40 - 16:06BNE-IAD
21h 26m1 stop
$2,333Qantas Airways
Find Deal
Sun, 30 Nov - Wed, 10 Dec
Qantas Airways Logo
17:03 - 06:30IAD-BNE
22h 27m1 stop
Qantas Airways Logo
09:40 - 16:06BNE-IAD
21h 26m1 stop
$2,343Qantas Airways
Find Deal
Wed, 8 Oct - Wed, 15 Oct
United Airlines Logo
17:30 - 06:30IAD-BNE
23h 00m1 stop
United Airlines Logo
10:30 - 16:25BNE-IAD
19h 55m1 stop
$2,415United Airlines
Find Deal
Wed, 8 Oct - Wed, 15 Oct
United Airlines Logo
18:58 - 06:30IAD-BNE
21h 32m1 stop
United Airlines Logo
10:30 - 21:10BNE-IAD
24h 40m1 stop
$2,416United Airlines
Find Deal
Booking Insights

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 April, when tickets cost $1,439 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of return tickets is $2,722 and $2,416 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 a flight from Washington, D.C. Dulles Intl Airport to Australia, you should book around 3 weeks before departure, which saves you about 36% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.


Good to know

Low seasonJuly
Cheapest flight$740
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly (23% 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.

Reviews of the top airline 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 8900 reviews
7.3Comfort
8.1Crew
7.7Boarding
6.6Food
7.1Entertainment
Airline reviews

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

8.0 ExcellentHal, July 2025IAD - MSY
Read more United Airlines reviews

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

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.

Everything you need to know for your flight from Dulles Intl to Australia

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.