$763 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 31/8. 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.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Dulles Intl to Australia

Cheapest return prices found by our users on KAYAK in the last 72 hours
Sydney
Sydney3 stops$1,480
Brisbane
Brisbane2 stops$2,284
Coolangatta
Coolangatta2 stops$2,450
Cairns
Cairns2 stops$2,671
Canberra
Canberra3 stops$2,544
Sydney
Sydney3 stops$1,480
Brisbane
Brisbane2 stops$2,284
Coolangatta
Coolangatta2 stops$2,450
Cairns
Cairns2 stops$2,671
Canberra
Canberra3 stops$2,544

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

Wed, 27 May - Wed, 3 Jun
Multiple Airlines Logo
11:07 - 11:50
IAD
-
SYD
34h 43m
3 stops
Multiple Airlines Logo
13:20 - 08:12
SYD
-
IAD
32h 52m
3 stops
$1,480Multiple Airlines
Wed, 27 May - Wed, 3 Jun
Multiple Airlines Logo
11:07 - 12:05
IAD
-
MEL
34h 58m
3 stops
Multiple Airlines Logo
13:25 - 08:12
MEL
-
IAD
32h 47m
3 stops
$1,704Multiple Airlines
Wed, 13 May - Mon, 25 May
Multiple Airlines Logo
07:40 - 11:50
IAD
-
SYD
38h 10m
3 stops
Multiple Airlines Logo
13:15 - 10:12
SYD
-
IAD
34h 57m
3 stops
$1,721Multiple Airlines
Thu, 22 Oct - Wed, 11 Nov
Turkish Airlines Logo
13:20 - 20:40
IAD
-
MEL
40h 20m
2 stops
Turkish Airlines Logo
22:55 - 11:45
MEL
-
IAD
52h 50m
2 stops
$1,983Turkish Airlines
Tue, 1 Sep - Tue, 8 Sep
Turkish Airlines Logo
21:45 - 19:10
IAD
-
SYD
31h 25m
2 stops
Turkish Airlines Logo
21:05 - 11:35
SYD
-
IAD
52h 30m
2 stops
$2,009Turkish Airlines
Fri, 29 May - Sun, 7 Jun
Etihad Airways Logo
15:10 - 15:50
IAD
-
MEL
34h 40m
1 stop
Etihad Airways Logo
17:20 - 09:45
MEL
-
IAD
30h 25m
1 stop
$2,230Etihad Airways
Mon, 7 Sep - Sun, 13 Sep
Air New Zealand Logo
17:35 - 07:30
IAD
-
MEL
23h 55m
1 stop
Air New Zealand Logo
15:00 - 22:36
MEL
-
IAD
45h 36m
2 stops
$2,264Air New Zealand
Mon, 17 Aug - Mon, 7 Sep
Air New Zealand Logo
17:59 - 11:05
IAD
-
BNE
27h 06m
2 stops
Air New Zealand Logo
12:20 - 00:40
BNE
-
IAD
26h 20m
2 stops
$2,284Air New Zealand
Tue, 28 Jul - Mon, 31 Aug
United Airlines Logo
14:51 - 13:15
IAD
-
CBR
32h 24m
2 stops
United Airlines Logo
08:10 - 01:17
CBR
-
IAD
31h 07m
2 stops
$2,685United Airlines
Sun, 13 Sep - Mon, 19 Oct
United Airlines Logo
17:48 - 11:55
IAD
-
HBA
28h 07m
2 stops
United Airlines Logo
06:05 - 01:17
HBA
-
IAD
34h 12m
2 stops
$2,703United Airlines
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 July, when tickets cost $192 (return) on average. On the other hand, the most expensive months are April and March, when the average cost of return tickets is $1,196 and $530 respectively.

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 7 weeks before departure, which saves you about 34% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Find deals

Good to know

Low seasonApril
Cheapest flight$737
Best time to beat the crowds but there is an average 7% 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.

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 9677 reviews
7.1Entertainment
8.1Crew
6.6Food
7.7Boarding
7.3Comfort
Airline reviews

Vegetarian selection could be better. Bread was too hard to chew.

8.0 ExcellentAnonymous, Apr 2026
IAD - FRA
Read more United Airlines reviews

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Sat next to a one year old. She crawled all over the place and made me laugh.

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

Information on your arrival and departure airports

Washington Dulles Airport (IAD)