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Cheap flights from Washington, D.C. Dulles Intl Airport to Australia from $907

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 9/2. 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 return flights

Enter your travel dates to find the best prices.
Air Canada Logo
09:45 - 09:35
IAD
-
SYD
31h 50m2 stops
Air Canada Logo
09:20 - 06:25
SYD
-
IAD
35h 05m1 stop
$1,503Air Canada
Tue, 17 Feb - Tue, 26 May
Air Canada Logo
09:45 - 09:35
IAD
-
SYD
31h 50m2 stops
Air Canada Logo
09:20 - 11:16
SYD
-
IAD
39h 56m2 stops
$1,508Air Canada
Tue, 17 Feb - Tue, 26 May
Multiple Airlines Logo
13:15 - 08:45
IAD
-
BNE
28h 30m2 stops
Multiple Airlines Logo
06:10 - 20:26
BNE
-
IAD
29h 16m3 stops
$1,544Multiple Airlines
Tue, 20 Jan - Tue, 27 Jan
Multiple Airlines Logo
16:30 - 08:45
IAD
-
BNE
25h 15m2 stops
Multiple Airlines Logo
06:10 - 20:29
BNE
-
IAD
29h 19m3 stops
$1,607Multiple Airlines
Sat, 17 Jan - Tue, 10 Feb
American Airlines Logo
17:26 - 05:00
IAD
-
MEL
43h 34m1 stop
American Airlines Logo
16:05 - 23:12
MEL
-
IAD
23h 07m2 stops
$1,766American Airlines
Mon, 26 Jan - Mon, 9 Feb
American Airlines Logo
15:11 - 09:30
IAD
-
MEL
27h 19m2 stops
American Airlines Logo
13:35 - 22:19
MEL
-
IAD
22h 44m1 stop
$1,774American Airlines
Tue, 17 Mar - Mon, 20 Apr
United Airlines Logo
16:11 - 09:30
IAD
-
MEL
25h 19m2 stops
United Airlines Logo
11:30 - 19:21
MEL
-
IAD
23h 51m2 stops
$1,800United Airlines
Mon, 26 Jan - Mon, 9 Feb
United Airlines Logo
18:00 - 09:30
IAD
-
MEL
23h 30m1 stop
United Airlines Logo
11:30 - 21:08
MEL
-
IAD
25h 38m2 stops
$1,803United Airlines
Mon, 26 Jan - Mon, 9 Feb
Qantas Airways Logo
17:37 - 11:50
IAD
-
ADL
27h 43m2 stops
Qantas Airways Logo
09:00 - 22:53
ADL
-
IAD
28h 23m2 stops
$1,843Qantas Airways
Tue, 10 Mar - Thu, 19 Mar
Qantas Airways Logo
17:37 - 09:25
IAD
-
ADL
49h 18m2 stops
Qantas Airways Logo
06:00 - 22:53
ADL
-
IAD
31h 23m2 stops
$1,918Qantas Airways
Tue, 10 Mar - Thu, 19 Mar

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
17 Feb
IAD09:45Washington, D.C. Dulles Intl
31h 50m
2 stops
SYD09:35Sydney Kingsford Smith
26 May
SYD09:20Sydney Kingsford Smith
35h 05m
1 stop
IAD06:25Washington, D.C. Dulles Intl
$1,503
Find similar
Air Canada
17 Feb
IAD09:45Washington, D.C. Dulles Intl
31h 50m
2 stops
SYD09:35Sydney Kingsford Smith
26 May
SYD09:20Sydney Kingsford Smith
39h 56m
2 stops
IAD11:16Washington, D.C. Dulles Intl
$1,508
Find similar
Air Canada
17 Feb
IAD09:45Washington, D.C. Dulles Intl
31h 50m
2 stops
SYD09:35Sydney Kingsford Smith
26 May
SYD09:20Sydney Kingsford Smith
39h 56m
2 stops
IAD11:16Washington, D.C. Dulles Intl
$1,509
Find similar

Alaska Airlines flights from Washington, D.C. Dulles Intl Airport to Australia

Our best Alaska Airlines deals on Washington, D.C. Dulles Intl Airport to Australia flight tickets
Alaska Airlines
10 Dec
IAD17:37Washington, D.C. Dulles Intl
34h 08m
3 stops
SYD19:45Sydney Kingsford Smith
10 Jan
SYD21:40Sydney Kingsford Smith
35h 24m
3 stops
IAD17:04Washington, D.C. Dulles Intl
$2,892
Find similar
Alaska Airlines
10 Dec
IAD17:37Washington, D.C. Dulles Intl
34h 08m
3 stops
SYD19:45Sydney Kingsford Smith
10 Jan
SYD21:40Sydney Kingsford Smith
35h 24m
2 stops
IAD17:04Washington, D.C. Dulles Intl
$3,009
Find similar
Alaska Airlines
10 Dec
IAD17:37Washington, D.C. Dulles Intl
34h 08m
3 stops
SYD19:45Sydney Kingsford Smith
31 Dec
SYD21:40Sydney Kingsford Smith
35h 41m
2 stops
IAD17:21Washington, D.C. Dulles Intl
$3,298
Find similar

momondo Fare Finder

 
Customise 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 78,305 searches. Data last updated 7 December 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 17/2

09:45-09:35

2 stops31h 50m

Sydney Kingsford Smith

Tue 26/5

09:20-06:25

1 stop35h 05m

$1,503

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 17/2

09:45-09:35

2 stops31h 50m

Sydney Kingsford Smith

Tue 26/5

09:20-11:16

2 stops39h 56m

$1,508

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Tue 20/1

13:15-08:45

2 stops28h 30m

Brisbane

Tue 27/1

06:10-20:26

3 stops29h 16m

$1,544

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Sat 17/1

16:30-08:45

2 stops25h 15m

Brisbane

Tue 10/2

06:10-20:29

3 stops29h 19m

$1,607

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Mon 26/1

17:26-05:00

1 stop43h 34m

Melbourne

Mon 9/2

16:05-23:12

2 stops23h 07m

$1,766

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Tue 17/3

15:11-09:30

2 stops27h 19m

Melbourne

Mon 20/4

13:35-22:19

1 stop22h 44m

$1,774

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Mon 26/1

16:11-09:30

2 stops25h 19m

Melbourne

Mon 9/2

11:30-19:21

2 stops23h 51m

$1,800

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Mon 26/1

18:00-09:30

1 stop23h 30m

Melbourne

Mon 9/2

11:30-21:08

2 stops25h 38m

$1,803

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 10/3

17:37-11:50

2 stops27h 43m

Adelaide

Thu 19/3

09:00-22:53

2 stops28h 23m

$1,843

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 10/3

17:37-09:25

2 stops49h 18m

Adelaide

Thu 19/3

06:00-22:53

2 stops31h 23m

$1,918

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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?

In general, May is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,306. If you don’t want to visit Australia in May, then you should wait until February to fly from Washington, D.C. Dulles Intl Airport, when ticket prices are also cheap, with an average price of $1,369.

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

On average, the least expensive day to fly to Australia from Washington, D.C. Dulles Intl Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,879. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Washington, D.C. Dulles Intl Airport to Australia on a Thursday will generally be more expensive and average around $2,403. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Australia is in the morning. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Australia in the morning for as low as $2,050. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Australia are more costly in the evening, with an average ticket price of $3,024. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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 $1,924 when searching weeks before you fly. 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 $937 on momondo.

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

You could potentially save up to 20% 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 44m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Australia takes 21h 44m
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 for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Australia.

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

    The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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 $2,341Free cancellationRating
7.4
9,072 reviews
Search United Airlines 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. All flights to Australia from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Washington, D.C. and Australia by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Washington, D.C. to Australia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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