Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. Dulles Intl Airport to Australia from $654

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 5/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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.
American Airlines Logo
06:04 - 06:55IAD-SYD
32h 51m1 stop
American Airlines Logo
11:20 - 22:41SYD-IAD
27h 21m2 stops
$1,289American Airlines
Find Deal
Mon, 10 Nov - Wed, 26 Nov
American Airlines Logo
06:32 - 06:55IAD-SYD
32h 23m1 stop
American Airlines Logo
13:05 - 22:15SYD-IAD
24h 10m1 stop
$1,301American Airlines
Find Deal
Tue, 17 Feb - Sun, 15 Mar
Delta Logo
10:11 - 08:30IAD-SYD
30h 19m2 stops
Delta Logo
10:40 - 18:26SYD-IAD
23h 46m2 stops
$1,332Delta
Find Deal
Mon, 3 Nov - Wed, 12 Nov
Delta Logo
15:33 - 07:10IAD-SYD
24h 37m2 stops
Delta Logo
10:40 - 17:04SYD-IAD
22h 24m2 stops
$1,333Delta
Find Deal
Wed, 29 Oct - Wed, 19 Nov
Multiple Airlines Logo
17:03 - 17:00IAD-CBR
31h 57m2 stops
Multiple Airlines Logo
09:55 - 22:33CBR-IAD
28h 38m2 stops
$1,866Multiple Airlines
Find Deal
Thu, 13 Nov - Wed, 19 Nov
Multiple Airlines Logo
09:00 - 19:00IAD-ADL
42h 30m3 stops
Multiple Airlines Logo
06:00 - 20:29ADL-IAD
28h 59m3 stops
$2,028Multiple Airlines
Find Deal
Wed, 4 Mar - Tue, 24 Mar
Qantas Airways Logo
17:03 - 11:50IAD-CNS
27h 47m2 stops
Qantas Airways Logo
15:35 - 16:08CNS-IAD
39h 33m2 stops
$2,051Qantas Airways
Find Deal
Mon, 1 Dec - Wed, 10 Dec
Qantas Airways Logo
17:15 - 06:30IAD-BNE
22h 15m1 stop
Qantas Airways Logo
08:40 - 16:09BNE-IAD
21h 29m1 stop
$2,363Qantas Airways
Find Deal
Mon, 2 Mar - Fri, 13 Mar
United Airlines Logo
19:00 - 09:30IAD-MEL
22h 30m1 stop
United Airlines Logo
11:30 - 16:22MEL-IAD
20h 52m1 stop
$2,371United Airlines
Find Deal
Mon, 8 Dec - Wed, 24 Dec
United Airlines Logo
16:00 - 10:00IAD-MEL
26h 00m2 stops
United Airlines Logo
11:30 - 16:22MEL-IAD
20h 52m1 stop
$2,393United Airlines
Find Deal
Sun, 7 Dec - Sun, 21 Dec

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

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Australia flight tickets
American Airlines
10 Nov
IAD06:04Washington, D.C. Dulles Intl
32h 51m
1 stop
SYD06:55Sydney Kingsford Smith
26 Nov
SYD11:20Sydney Kingsford Smith
27h 21m
2 stops
IAD22:41Washington, D.C. Dulles Intl
$1,289
Find similar
American Airlines
17 Feb
IAD06:32Washington, D.C. Dulles Intl
32h 23m
1 stop
SYD06:55Sydney Kingsford Smith
15 Mar
SYD13:05Sydney Kingsford Smith
24h 10m
1 stop
IAD22:15Washington, D.C. Dulles Intl
$1,301
Find similar
American Airlines
2 Nov
IAD05:04Washington, D.C. Dulles Intl
32h 51m
1 stop
SYD05:55Sydney Kingsford Smith
17 Nov
SYD14:05Sydney Kingsford Smith
24h 28m
1 stop
IAD22:33Washington, D.C. Dulles Intl
$1,303
Find similar

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

Our best Delta deals on Washington, D.C. Dulles Intl Airport to Australia flight tickets
Delta
3 Nov
IAD10:11Washington, D.C. Dulles Intl
30h 19m
2 stops
SYD08:30Sydney Kingsford Smith
12 Nov
SYD10:40Sydney Kingsford Smith
23h 46m
2 stops
IAD18:26Washington, D.C. Dulles Intl
$1,332
Find similar
Delta
29 Oct
IAD15:33Washington, D.C. Dulles Intl
24h 37m
2 stops
SYD07:10Sydney Kingsford Smith
19 Nov
SYD10:40Sydney Kingsford Smith
22h 24m
2 stops
IAD17:04Washington, D.C. Dulles Intl
$1,333
Find similar
Delta
19 Nov
IAD15:35Washington, D.C. Dulles Intl
24h 55m
2 stops
SYD08:30Sydney Kingsford Smith
28 Nov
SYD10:40Sydney Kingsford Smith
26h 52m
2 stops
IAD21:32Washington, D.C. Dulles Intl
$1,336
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 17 October 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

Mon 10/11

06:04-06:55

1 stop32h 51m

Sydney Kingsford Smith

Wed 26/11

11:20-22:41

2 stops27h 21m

$1,289

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Tue 17/2

06:32-06:55

1 stop32h 23m

Sydney Kingsford Smith

Sun 15/3

13:05-22:15

1 stop24h 10m

$1,301

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 3/11

10:11-08:30

2 stops30h 19m

Sydney Kingsford Smith

Wed 12/11

10:40-18:26

2 stops23h 46m

$1,332

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Wed 29/10

15:33-07:10

2 stops24h 37m

Sydney Kingsford Smith

Wed 19/11

10:40-17:04

2 stops22h 24m

$1,333

Washington, D.C.Canberra

IAD - CBR

IADCBR

Washington, D.C. Dulles Intl

Thu 13/11

17:03-17:00

2 stops31h 57m

Canberra

Wed 19/11

09:55-22:33

2 stops28h 38m

$1,866

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Wed 4/3

09:00-19:00

3 stops42h 30m

Adelaide

Tue 24/3

06:00-20:29

3 stops28h 59m

$2,028

Washington, D.C.Cairns

IAD - CNS

IADCNS

Washington, D.C. Dulles Intl

Mon 1/12

17:03-11:50

2 stops27h 47m

Cairns

Wed 10/12

15:35-16:08

2 stops39h 33m

$2,051

Washington, D.C.Brisbane

IAD - BNE

IADBNE

Washington, D.C. Dulles Intl

Mon 2/3

17:15-06:30

1 stop22h 15m

Brisbane

Fri 13/3

08:40-16:09

1 stop21h 29m

$2,363

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Mon 8/12

19:00-09:30

1 stop22h 30m

Melbourne

Wed 24/12

11:30-16:22

1 stop20h 52m

$2,371

Washington, D.C.Melbourne

IAD - MEL

IADMEL

Washington, D.C. Dulles Intl

Sun 7/12

16:00-10:00

2 stops26h 00m

Melbourne

Sun 21/12

11:30-16:22

1 stop20h 52m

$2,393

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $1,412. 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 $1,417.

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 $1,923. 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 $2,459. 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 $2,097. 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 $3,094. 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 $1,981 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 $822 on momondo.

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

You could potentially save up to 22% 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

Direct flights

None
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 $2,396Free cancellationRating
7.4
8,987 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.

An easier way to manage your Australia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 16/11
Sun 23/11
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia