Cheap flights from Washington, D.C. to Adelaide from $547

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. to Adelaide departing on 8/17. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
4:05 pm - 11:50 am
IAD
-
ADL
30h 15m
3 stops
Air Canada Logo
8:00 pm - 6:22 am
ADL
-
IAD
47h 52m
2 stops
$1,019Air Canada
Mon, May 4 - Mon, Jun 1
Multiple Airlines Logo
4:05 pm - 1:55 pm
IAD
-
ADL
32h 20m
3 stops
Multiple Airlines Logo
5:15 pm - 8:29 pm
ADL
-
IAD
40h 44m
3 stops
$1,081Multiple Airlines
Mon, May 4 - Mon, Jun 1
Multiple Airlines Logo
12:39 pm - 1:55 pm
IAD
-
ADL
35h 46m
2 stops
Multiple Airlines Logo
4:30 pm - 9:26 pm
ADL
-
IAD
42h 26m
2 stops
$1,085Multiple Airlines
Mon, May 4 - Mon, Jun 1
Multiple Airlines Logo
9:40 am - 11:50 am
DCA
-
ADL
36h 40m
2 stops
Multiple Airlines Logo
4:30 pm - 7:53 pm
ADL
-
DCA
40h 53m
2 stops
$1,124Multiple Airlines
Sun, Apr 5 - Wed, Apr 15
Singapore Airlines Logo
9:00 am - 11:50 am
IAD
-
ADL
37h 20m
2 stops
Singapore Airlines Logo
8:00 pm - 8:29 pm
ADL
-
IAD
37h 59m
2 stops
$1,179Singapore Airlines
Sun, Apr 19 - Mon, Apr 27
EVA Air Logo
12:40 pm - 11:50 am
IAD
-
ADL
33h 40m
2 stops
EVA Air Logo
4:30 pm - 8:29 pm
ADL
-
IAD
41h 29m
2 stops
$1,218EVA Air
Sat, Apr 4 - Wed, Apr 15
Qantas Airways Logo
4:59 pm - 1:40 pm
DCA
-
ADL
31h 11m
2 stops
Qantas Airways Logo
7:45 pm - 9:22 pm
ADL
-
DCA
39h 07m
2 stops
$1,270Qantas Airways
Sun, Apr 19 - Sun, Apr 26
Qantas Airways Logo
2:59 pm - 11:15 am
BWI
-
ADL
30h 46m
2 stops
Qantas Airways Logo
7:45 pm - 11:51 pm
ADL
-
BWI
41h 36m
2 stops
$1,308Qantas Airways
Sat, Jun 20 - Tue, Jul 7
Air New Zealand Logo
5:50 pm - 10:55 am
BWI
-
ADL
27h 35m
2 stops
Air New Zealand Logo
12:05 pm - 10:44 pm
ADL
-
BWI
24h 09m
2 stops
$1,316Air New Zealand
Mon, Apr 20 - Wed, Apr 29
Air New Zealand Logo
5:50 pm - 10:55 am
BWI
-
ADL
27h 35m
2 stops
Air New Zealand Logo
12:05 pm - 10:44 pm
ADL
-
BWI
24h 09m
2 stops
$1,332Air New Zealand
Mon, Apr 20 - Thu, Apr 30

United Airlines flights from Washington, D.C. to Adelaide

Our best United Airlines deals on Washington, D.C. to Adelaide flight tickets
United Airlines
Apr 20
BWI6:15 pmBaltimore/Washington
30h 00m
2 stops
ADL1:45 pmAdelaide
May 3
ADL6:05 amAdelaide
24h 33m
2 stops
BWI5:08 pmBaltimore/Washington
$1,526
United Airlines
Apr 20
BWI6:15 pmBaltimore/Washington
26h 20m
2 stops
ADL10:05 amAdelaide
Apr 26
ADL6:05 amAdelaide
24h 33m
2 stops
BWI5:08 pmBaltimore/Washington
$1,527
United Airlines
Apr 19
BWI6:15 pmBaltimore/Washington
27h 25m
2 stops
ADL11:10 amAdelaide
Apr 26
ADL6:05 amAdelaide
28h 48m
3 stops
BWI9:23 pmBaltimore/Washington
$1,529

Air New Zealand flights from Washington, D.C. to Adelaide

Our best Air New Zealand deals on Washington, D.C. to Adelaide flight tickets
Air New Zealand
Apr 20
IAD6:30 amWashington, D.C. Dulles Intl
38h 55m
2 stops
ADL10:55 amAdelaide
Apr 29
ADL12:05 pmAdelaide
25h 24m
2 stops
IAD11:59 pmWashington, D.C. Dulles Intl
$1,309
Air New Zealand
Apr 20
IAD5:37 pmWashington, D.C. Dulles Intl
27h 48m
2 stops
ADL10:55 amAdelaide
Apr 27
ADL12:05 pmAdelaide
24h 09m
2 stops
IAD10:44 pmWashington, D.C. Dulles Intl
$1,314
Air New Zealand
Apr 20
BWI5:50 pmBaltimore/Washington
27h 35m
2 stops
ADL10:55 amAdelaide
Apr 29
ADL12:05 pmAdelaide
24h 09m
2 stops
BWI10:44 pmBaltimore/Washington
$1,316

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 March 9, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Adelaide that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 5/4

4:05 pm-11:50 am

3 stops30h 15m

Adelaide

Mon 6/1

8:00 pm-6:22 am

2 stops47h 52m

$1,019

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 5/4

4:05 pm-1:55 pm

3 stops32h 20m

Adelaide

Mon 6/1

5:15 pm-8:29 pm

3 stops40h 44m

$1,081

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 5/4

12:39 pm-1:55 pm

2 stops35h 46m

Adelaide

Mon 6/1

4:30 pm-9:26 pm

2 stops42h 26m

$1,085

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Sun 4/5

9:40 am-11:50 am

2 stops36h 40m

Adelaide

Wed 4/15

4:30 pm-7:53 pm

2 stops40h 53m

$1,124

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sun 4/19

9:00 am-11:50 am

2 stops37h 20m

Adelaide

Mon 4/27

8:00 pm-8:29 pm

2 stops37h 59m

$1,179

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sat 4/4

12:40 pm-11:50 am

2 stops33h 40m

Adelaide

Wed 4/15

4:30 pm-8:29 pm

2 stops41h 29m

$1,218

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Sun 4/19

4:59 pm-1:40 pm

2 stops31h 11m

Adelaide

Sun 4/26

7:45 pm-9:22 pm

2 stops39h 07m

$1,270

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Sat 6/20

2:59 pm-11:15 am

2 stops30h 46m

Adelaide

Tue 7/7

7:45 pm-11:51 pm

2 stops41h 36m

$1,308
Quickest round-trip

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Mon 4/20

5:50 pm-10:55 am

2 stops27h 35m

Adelaide

Wed 4/29

12:05 pm-10:44 pm

2 stops24h 09m

$1,316

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Mon 4/20

5:50 pm-10:55 am

2 stops27h 35m

Adelaide

Thu 4/30

12:05 pm-10:44 pm

2 stops24h 09m

$1,332

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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. 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 airline that flies from Washington, D.C. to Adelaide?

Qantas Airways, Air New Zealand, and Qatar Airways are the most popular carriers operating from Washington, D.C. to Adelaide

When to book flights from Washington, D.C. to Adelaide

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Adelaide (WAS to ADL) flight deals and tips

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

Fastest flight time

26h 57m

Direct flights

None
The fastest flight from Washington, D.C. to Adelaide takes 26h 57m
There are no direct flights from Washington, D.C. to Adelaide. There are no popular flight routes from Washington, D.C. to Adelaide.
  • How far is Washington, D.C. to Adelaide by plane?

    There are 10454.6 mi between Washington, D.C. and Adelaide. A reasonable flight in good conditions will take 26h 57m.

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

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

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

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

Best airlines flying from Washington, D.C. to Adelaide

Compare and see reviews for airlines that fly from Washington, D.C. to Adelaide with momondo
Airline
Rating
Free Cancellation
Price
Qantas AirwaysPriceFrom $587Free CancellationRating
7.5
1,002 reviews
Search Qantas Airways flights

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?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Adelaide. momondo saves you time and could save you money on your trip.

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.

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Wed 4/8
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