$926 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 15/9. 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, 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$1,652
Brisbane
Brisbane3 stops$1,927
Coolangatta
Coolangatta3 stops$2,545
Cairns
Cairns2 stops$2,771
Darwin
Darwin2 stops$2,623
Canberra
Canberra3 stops$2,265
Sydney
Sydney3 stops$1,652
Brisbane
Brisbane3 stops$1,927
Coolangatta
Coolangatta3 stops$2,545
Cairns
Cairns2 stops$2,771
Darwin
Darwin2 stops$2,623
Canberra
Canberra3 stops$2,265

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

Fri, 14 Aug - Wed, 19 Aug
Multiple Airlines Logo
09:50 - 11:50
IAD
-
SYD
36h 00m
3 stops
Multiple Airlines Logo
13:15 - 16:20
SYD
-
IAD
41h 05m
3 stops
$1,652Multiple Airlines
Fri, 3 Jul - Tue, 14 Jul
Multiple Airlines Logo
11:17 - 11:50
IAD
-
SYD
34h 33m
3 stops
Multiple Airlines Logo
13:15 - 10:16
SYD
-
IAD
35h 01m
3 stops
$1,675Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
Alaska Airlines Logo
07:00 - 06:45
IAD
-
MEL
33h 45m
2 stops
Alaska Airlines Logo
09:45 - 05:40
MEL
-
IAD
33h 55m
2 stops
$1,831Alaska Airlines
Tue, 29 Sep - Fri, 2 Oct
Alaska Airlines Logo
07:00 - 06:45
IAD
-
MEL
33h 45m
2 stops
Alaska Airlines Logo
09:45 - 05:40
MEL
-
IAD
33h 55m
2 stops
$1,897Alaska Airlines
Sun, 1 Nov - Sun, 15 Nov
Air Canada Logo
09:55 - 08:45
IAD
-
BNE
31h 50m
2 stops
Air Canada Logo
10:45 - 20:23
BNE
-
IAD
24h 38m
2 stops
$2,105Air Canada
Wed, 5 Aug - Sun, 16 Aug
Air Canada Logo
08:18 - 07:05
IAD
-
BNE
32h 47m
2 stops
Air Canada Logo
10:00 - 07:43
BNE
-
IAD
35h 43m
2 stops
$2,110Air Canada
Mon, 23 Nov - Mon, 14 Dec
Air New Zealand Logo
06:30 - 10:55
IAD
-
ADL
36h 55m
2 stops
Air New Zealand Logo
06:05 - 16:13
ADL
-
IAD
25h 38m
2 stops
$2,371Air New Zealand
Mon, 23 Nov - Mon, 14 Dec
Air New Zealand Logo
06:30 - 10:55
IAD
-
ADL
36h 55m
2 stops
Air New Zealand Logo
07:50 - 16:13
ADL
-
IAD
23h 53m
2 stops
$2,441Air New Zealand
Mon, 27 Jul - Mon, 3 Aug
United Airlines Logo
17:48 - 11:25
IAD
-
OOL
27h 37m
2 stops
United Airlines Logo
07:05 - 16:25
OOL
-
IAD
23h 20m
2 stops
$2,987United Airlines
Sun, 26 Jul - Sun, 2 Aug
United Airlines Logo
17:55 - 23:55
IAD
-
DRW
40h 30m
2 stops
United Airlines Logo
12:50 - 00:55
DRW
-
IAD
49h 35m
2 stops
$3,294United 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 $195 (return) on average. On the other hand, the most expensive months are April and June, when the average cost of return tickets is $1,220 and $666 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 2 weeks before departure, which saves you about 26% 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$926
Best time to beat the crowds (9% less expensive on average)
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 9810 reviews
7.1Entertainment
8.1Crew
7.7Boarding
6.6Food
7.3Comfort
Airline reviews

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

2.0 MediocreAnonymous, May 2026
IAD - MUC
Read more United Airlines reviews

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

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

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

Information on your arrival and departure airports

Washington Dulles Airport (IAD)