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Cheap flights from Washington, D.C. Dulles Intl Airport to Australia from $603

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Australia departing on 2/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Australia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
9:45 am - 9:35 am
IAD
-
SYD
31h 50m2 stops
Air Canada Logo
9:20 am - 6:25 am
SYD
-
IAD
35h 05m1 stop
$999Air Canada
Tue, Feb 17 - Tue, May 26
Air Canada Logo
9:45 am - 9:35 am
IAD
-
SYD
31h 50m2 stops
Air Canada Logo
9:20 am - 11:16 am
SYD
-
IAD
39h 56m2 stops
$1,002Air Canada
Tue, Feb 17 - Tue, May 26
American Airlines Logo
5:26 pm - 5:00 am
IAD
-
MEL
43h 34m1 stop
American Airlines Logo
4:05 pm - 11:12 pm
MEL
-
IAD
23h 07m2 stops
$1,174American Airlines
Mon, Jan 26 - Mon, Feb 9
American Airlines Logo
6:00 am - 5:00 am
IAD
-
MEL
31h 00m1 stop
American Airlines Logo
4:05 pm - 9:17 pm
MEL
-
IAD
21h 12m1 stop
$1,183American Airlines
Mon, Jan 26 - Mon, Feb 9
United Airlines Logo
4:11 pm - 9:30 am
IAD
-
MEL
25h 19m2 stops
United Airlines Logo
11:30 am - 7:21 pm
MEL
-
IAD
23h 51m2 stops
$1,196United Airlines
Mon, Jan 26 - Mon, Feb 9
United Airlines Logo
10:10 pm - 9:00 am
IAD
-
MEL
43h 50m1 stop
United Airlines Logo
10:55 am - 9:12 pm
MEL
-
IAD
24h 17m1 stop
$1,201United Airlines
Sat, Mar 14 - Sun, Apr 19
Qantas Airways Logo
5:37 pm - 11:50 am
IAD
-
ADL
27h 43m2 stops
Qantas Airways Logo
9:00 am - 10:53 pm
ADL
-
IAD
28h 23m2 stops
$1,225Qantas Airways
Tue, Mar 10 - Thu, Mar 19
Qantas Airways Logo
5:37 pm - 9:25 am
IAD
-
ADL
49h 18m2 stops
Qantas Airways Logo
6:25 am - 10:53 pm
ADL
-
IAD
30h 58m2 stops
$1,275Qantas Airways
Tue, Mar 10 - Thu, Mar 19
Air New Zealand Logo
8:35 am - 3:40 pm
IAD
-
CBR
39h 05m3 stops
Air New Zealand Logo
6:05 am - 6:20 pm
CBR
-
IAD
27h 15m2 stops
$1,678Air New Zealand
Tue, Feb 24 - Tue, Mar 10
Air New Zealand Logo
12:35 pm - 3:40 pm
IAD
-
CBR
35h 05m3 stops
Air New Zealand Logo
6:05 am - 4:24 pm
CBR
-
IAD
25h 19m2 stops
$1,679Air New Zealand
Tue, Feb 24 - Tue, Mar 10

Air Canada flights from Washington, D.C. Dulles Intl Airport to Australia

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Australia flight tickets
Air Canada
Feb 17
IAD9:45 amWashington, D.C. Dulles Intl
31h 50m
2 stops
SYD9:35 amSydney Kingsford Smith
May 26
SYD9:20 amSydney Kingsford Smith
35h 05m
1 stop
IAD6:25 amWashington, D.C. Dulles Intl
$999
Find similar
Air Canada
Feb 17
IAD9:45 amWashington, D.C. Dulles Intl
31h 50m
2 stops
SYD9:35 amSydney Kingsford Smith
May 26
SYD9:20 amSydney Kingsford Smith
39h 56m
2 stops
IAD11:16 amWashington, D.C. Dulles Intl
$1,002
Find similar
Air Canada
Feb 17
IAD9:45 amWashington, D.C. Dulles Intl
31h 50m
2 stops
SYD9:35 amSydney Kingsford Smith
May 26
SYD9:20 amSydney Kingsford Smith
39h 56m
2 stops
IAD11:16 amWashington, D.C. Dulles Intl
$1,003
Find similar

Air China flights from Washington, D.C. Dulles Intl Airport to Australia

Our best Air China deals on Washington, D.C. Dulles Intl Airport to Australia flight tickets
Air China
Dec 16
IAD10:00 pmWashington, D.C. Dulles Intl
49h 30m
1 stop
SYD3:30 pmSydney Kingsford Smith
Jan 8
SYD8:40 pmSydney Kingsford Smith
37h 50m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$2,419
Find similar
Air China
Dec 16
IAD10:00 pmWashington, D.C. Dulles Intl
49h 30m
1 stop
SYD3:30 pmSydney Kingsford Smith
Dec 22
SYD8:40 pmSydney Kingsford Smith
37h 50m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$2,561
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Australia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 7, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 2/17

9:45 am-9:35 am

2 stops31h 50m

Sydney Kingsford Smith

Tue 5/26

9:20 am-6:25 am

1 stop35h 05m

$999

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 2/17

9:45 am-9:35 am

2 stops31h 50m

Sydney Kingsford Smith

Tue 5/26

9:20 am-11:16 am

2 stops39h 56m

$1,002

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Mon 1/26

5:26 pm-5:00 am

1 stop43h 34m

Melbourne

Mon 2/9

4:05 pm-11:12 pm

2 stops23h 07m

$1,174

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Mon 1/26

6:00 am-5:00 am

1 stop31h 00m

Melbourne

Mon 2/9

4:05 pm-9:17 pm

1 stop21h 12m

$1,183

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Mon 1/26

4:11 pm-9:30 am

2 stops25h 19m

Melbourne

Mon 2/9

11:30 am-7:21 pm

2 stops23h 51m

$1,196

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Sat 3/14

10:10 pm-9:00 am

1 stop43h 50m

Melbourne

Sun 4/19

10:55 am-9:12 pm

1 stop24h 17m

$1,201

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 3/10

5:37 pm-11:50 am

2 stops27h 43m

Adelaide

Thu 3/19

9:00 am-10:53 pm

2 stops28h 23m

$1,225

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 3/10

5:37 pm-9:25 am

2 stops49h 18m

Adelaide

Thu 3/19

6:25 am-10:53 pm

2 stops30h 58m

$1,275

Washington, D.C.Canberra

IAD - CBR

IADCBR

Washington, D.C. Dulles Intl

Tue 2/24

8:35 am-3:40 pm

3 stops39h 05m

Canberra

Tue 3/10

6:05 am-6:20 pm

2 stops27h 15m

$1,678

Washington, D.C.Canberra

IAD - CBR

IADCBR

Washington, D.C. Dulles Intl

Tue 2/24

12:35 pm-3:40 pm

3 stops35h 05m

Canberra

Tue 3/10

6:05 am-4:24 pm

2 stops25h 19m

$1,679

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Australia from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Australia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Australia?

The month of May is, on average, the cheapest month to fly to Australia from Washington, D.C. Dulles Intl Airport, with most prices found around $868. If you aren’t able to travel during the month of May, then book flights to Australia from Washington, D.C. Dulles Intl Airport during February instead. Flights to Australia in February, while not as cheap as those in May, still average around $910.

What is the cheapest day to depart on your flight to Australia?

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Australia is on a Tuesday. Travelers who choose to depart for Australia on a Tuesday will often find tickets for as low as $1,260. On the other hand, Monday is the most expensive day to depart from Washington, D.C. Dulles Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,520.

What is the cheapest time of day to depart on your flight to Australia?

Flying to Australia from Washington, D.C. Dulles Intl Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,368 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,647 on average. Flights to Australia from Washington, D.C. Dulles Intl Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Australia?

You are more likely to see cheaper flights to Australia from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,279 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Washington, D.C. Dulles Intl Airport for as low as $623 on momondo.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Australia flights?

You could potentially save up to 43% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Australia flight.

Cheap Washington, D.C. Dulles Intl Airport to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Australia

Fastest flight time

21h 30m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Australia takes 21h 30m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Australia. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Australia.
Search flight deals

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Australia?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Australia refresh daily.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Australia?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Australia?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Australia.

  • What documentation or ID do you need to fly to Australia?

    The travel and health documents required for your trip to Australia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Australia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Washington, D.C. Dulles Intl Airport to Australia

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Australia with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $327Free CancellationRating
7.4
9,078 reviews
Search United Airlines flights
DeltaPriceFrom $544Free CancellationRating
7.9
8,011 reviews
Search Delta flights
Qantas AirwaysPriceFrom $692Free CancellationRating
7.5
948 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $825Free CancellationRating
7.2
11,044 reviews
Search American Airlines flights
Air CanadaPriceFrom $839Free CancellationRating
7.1
10,512 reviews
Search Air Canada flights
Air New ZealandPriceFrom $1,261Free CancellationRating
8.0
551 reviews
Search Air New Zealand flights
ANAPriceFrom $1,370Free CancellationRating
8.4
1,020 reviews
Search ANA flights
Qatar AirwaysPriceFrom $1,961Free CancellationRating
7.4
3,676 reviews
Search Qatar Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Australia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Australia from Washington, D.C..

Can I find flights from Washington, D.C. to Australia with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Australia from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Australia?

Once you have performed a search for Washington, D.C. to Australia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to Australia right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to Australia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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