Cheap flights from Washington, D.C. Dulles Intl Airport to Adelaide from $938

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 Adelaide departing on 5/28. 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 Adelaide

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
9:00 am - 1:55 pm
IAD
-
ADL
37h 25m3 stops
Air Canada Logo
6:00 am - 8:29 pm
ADL
-
IAD
29h 59m3 stops
$1,050Air Canada
Tue, Jan 27 - Tue, Feb 3
Multiple Airlines Logo
12:33 pm - 12:40 pm
IAD
-
ADL
33h 37m3 stops
Multiple Airlines Logo
8:00 pm - 8:26 pm
ADL
-
IAD
38h 56m3 stops
$1,110Multiple Airlines
Tue, Mar 10 - Thu, Mar 19
Multiple Airlines Logo
12:33 pm - 12:40 pm
IAD
-
ADL
33h 37m3 stops
Multiple Airlines Logo
7:55 pm - 8:26 pm
ADL
-
IAD
39h 01m3 stops
$1,150Multiple Airlines
Tue, Mar 10 - Thu, Mar 19
Multiple Airlines Logo
12:33 pm - 12:40 pm
IAD
-
ADL
33h 37m3 stops
Multiple Airlines Logo
7:55 pm - 8:26 pm
ADL
-
IAD
39h 01m3 stops
$1,151Multiple Airlines
Tue, Mar 10 - Thu, Mar 19
Multiple Airlines Logo
12:33 pm - 12:40 pm
IAD
-
ADL
33h 37m2 stops
Multiple Airlines Logo
7:55 pm - 8:26 pm
ADL
-
IAD
39h 01m2 stops
$1,155Multiple Airlines
Tue, Mar 10 - Thu, Mar 19
Multiple Airlines Logo
12:33 pm - 6:10 pm
IAD
-
ADL
39h 07m2 stops
Multiple Airlines Logo
7:55 pm - 8:26 pm
ADL
-
IAD
39h 01m2 stops
$1,156Multiple Airlines
Tue, Mar 10 - Thu, Mar 19
Air Canada Logo
4:10 pm - 11:50 am
IAD
-
ADL
30h 10m3 stops
Air Canada Logo
8:00 pm - 6:25 am
ADL
-
IAD
47h 55m2 stops
$1,256Air Canada
Wed, May 20 - Thu, May 28
Multiple Airlines Logo
4:10 pm - 11:50 am
IAD
-
ADL
30h 10m3 stops
Multiple Airlines Logo
8:00 pm - 8:29 pm
ADL
-
IAD
37h 59m3 stops
$1,257Multiple Airlines
Wed, May 20 - Thu, May 28
Air Canada Logo
8:19 am - 11:50 am
IAD
-
ADL
38h 01m3 stops
Air Canada Logo
8:00 pm - 8:29 pm
ADL
-
IAD
37h 59m3 stops
$1,262Air Canada
Wed, May 20 - Thu, May 28
Qantas Airways Logo
5:26 pm - 9:25 am
IAD
-
ADL
48h 29m2 stops
Qantas Airways Logo
7:00 pm - 9:17 pm
ADL
-
IAD
41h 47m2 stops
$1,344Qantas Airways
Tue, Jan 27 - Tue, Feb 3

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

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Adelaide flight tickets
Air Canada
Jan 27
IAD9:00 amWashington, D.C. Dulles Intl
37h 25m
3 stops
ADL1:55 pmAdelaide
Feb 3
ADL6:00 amAdelaide
29h 59m
3 stops
IAD8:29 pmWashington, D.C. Dulles Intl
Air Canada
May 20
IAD4:10 pmWashington, D.C. Dulles Intl
30h 10m
3 stops
ADL11:50 amAdelaide
May 28
ADL8:00 pmAdelaide
47h 55m
2 stops
IAD6:25 amWashington, D.C. Dulles Intl
Air Canada
May 20
IAD8:19 amWashington, D.C. Dulles Intl
38h 01m
3 stops
ADL11:50 amAdelaide
May 28
ADL8:00 pmAdelaide
37h 59m
3 stops
IAD8:29 pmWashington, D.C. Dulles Intl

Qantas Airways flights from Washington, D.C. Dulles Intl Airport to Adelaide

Our best Qantas Airways deals on Washington, D.C. Dulles Intl Airport to Adelaide flight tickets
Qantas Airways
Jan 27
IAD5:26 pmWashington, D.C. Dulles Intl
48h 29m
2 stops
ADL9:25 amAdelaide
Feb 3
ADL7:00 pmAdelaide
41h 47m
2 stops
IAD9:17 pmWashington, D.C. Dulles Intl
Qantas Airways
Jan 29
IAD5:26 pmWashington, D.C. Dulles Intl
30h 29m
2 stops
ADL3:25 pmAdelaide
Feb 5
ADL9:00 amAdelaide
27h 47m
2 stops
IAD9:17 pmWashington, D.C. Dulles Intl
Qantas Airways
Feb 28
IAD5:32 pmWashington, D.C. Dulles Intl
27h 58m
2 stops
ADL1:00 pmAdelaide
Mar 15
ADL9:00 amAdelaide
23h 49m
2 stops
IAD6:19 pmWashington, D.C. Dulles Intl

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Adelaide 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 15, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Adelaide that are best for you.

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Route

Depart

Return

Price

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 1/27

9:00 am-1:55 pm

3 stops37h 25m

Adelaide

Tue 2/3

6:00 am-8:29 pm

3 stops29h 59m

$1,050

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 3/10

12:33 pm-12:40 pm

3 stops33h 37m

Adelaide

Thu 3/19

8:00 pm-8:26 pm

3 stops38h 56m

$1,110

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 3/10

12:33 pm-12:40 pm

3 stops33h 37m

Adelaide

Thu 3/19

7:55 pm-8:26 pm

3 stops39h 01m

$1,150

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 3/10

12:33 pm-12:40 pm

3 stops33h 37m

Adelaide

Thu 3/19

7:55 pm-8:26 pm

3 stops39h 01m

$1,151

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 3/10

12:33 pm-12:40 pm

2 stops33h 37m

Adelaide

Thu 3/19

7:55 pm-8:26 pm

2 stops39h 01m

$1,155

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 3/10

12:33 pm-6:10 pm

2 stops39h 07m

Adelaide

Thu 3/19

7:55 pm-8:26 pm

2 stops39h 01m

$1,156

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Wed 5/20

4:10 pm-11:50 am

3 stops30h 10m

Adelaide

Thu 5/28

8:00 pm-6:25 am

2 stops47h 55m

$1,256

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Wed 5/20

4:10 pm-11:50 am

3 stops30h 10m

Adelaide

Thu 5/28

8:00 pm-8:29 pm

3 stops37h 59m

$1,257

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Wed 5/20

8:19 am-11:50 am

3 stops38h 01m

Adelaide

Thu 5/28

8:00 pm-8:29 pm

3 stops37h 59m

$1,262

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 1/27

5:26 pm-9:25 am

2 stops48h 29m

Adelaide

Tue 2/3

7:00 pm-9:17 pm

2 stops41h 47m

$1,344

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Adelaide from

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

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 day to depart on your flight to Adelaide?

The cheapest day to depart on your flight to Adelaide is on a Sunday when prices can be found for as low as $1,596. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Adelaide is Friday, with ticket prices averaging around $2,914.

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

According to our data, the cheapest time of day to fly to Adelaide is in the afternoon. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Adelaide in the afternoon for as low as $1,741. 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 Adelaide are more costly at noon, with an average ticket price of $2,841. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Washington, D.C. Dulles Intl Airport to Adelaide

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Adelaide according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Adelaide (IAD to ADL) flight deals and tips

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

Fastest flight time

28h 04m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Adelaide takes 28h 04m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Adelaide. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Adelaide.
  • How far is Washington, D.C. Dulles Intl to Adelaide by plane?

    A flight from Washington, D.C. Dulles Intl to Adelaide will travel around 10432.6 mi. By plane, this route typically takes 28h 04m.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Adelaide Airport.

  • What documentation or ID do you need to fly to Adelaide Airport?

    The necessary travel and health documents for your Adelaide Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Adelaide?

Traveling to a place near Adelaide?

Book flights to Adelaide if you plan to visit one of these locations
Glenelg

Why use momondo?

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

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 Adelaide from Washington, D.C..

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

Flights from Washington, D.C. to Adelaide with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Washington, D.C. to Adelaide 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 Adelaide right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Adelaide from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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