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Cheap flights from Washington, D.C. to Adelaide from $1,499

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/5. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — ADL
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Washington, D.C. to Adelaide

Enter your travel dates to find the best prices.

Cheapest flights from Washington, D.C. to Adelaide
Explore the most affordable flight options available from Washington, D.C. to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2026.

Fri 1/511:00
DCA
-
ADL
3 stops37h 25m
Air Canada
Mon 4/516:30
ADL
-
DCA
3 stops43h 28m
Air Canada
Deal found 21/1$1,787
Mon 9/212:25
BWI
-
ADL
2 stops29h 35m
United Airlines
Mon 9/313:55
ADL
-
BWI
1 stop31h 54m
United Airlines
Deal found 20/1$1,799
Mon 16/216:10
IAD
-
ADL
1 stop25h 50m
United Airlines
Mon 16/313:55
ADL
-
IAD
1 stop30h 11m
United Airlines
Deal found 20/1$1,799
Wed 4/213:34
DCA
-
ADL
2 stops28h 21m
Qantas Airways
Wed 4/312:00
ADL
-
DCA
2 stops24h 27m
Qantas Airways
Deal found 21/1$1,801
Sun 15/222:05
IAD
-
ADL
2 stops43h 55m
United Airlines
Mon 16/313:55
ADL
-
IAD
1 stop21h 24m
United Airlines
Deal found 20/1$1,805
Wed 8/412:40
IAD
-
ADL
3 stops40h 45m
Multiple Airlines
Sun 19/419:35
ADL
-
IAD
3 stops53h 18m
Multiple Airlines
Deal found 20/1$1,810
Mon 11/511:00
DCA
-
ADL
2 stops37h 25m
Multiple Airlines
Sun 17/520:00
ADL
-
DCA
2 stops39h 58m
Multiple Airlines
Deal found 21/1$1,814
Mon 11/516:10
IAD
-
ADL
3 stops30h 10m
Multiple Airlines
Sun 17/520:00
ADL
-
IAD
3 stops37h 59m
Multiple Airlines
Deal found 21/1$1,814
Mon 9/217:59
DCA
-
ADL
1 stop24h 01m
Air New Zealand
Mon 9/313:55
ADL
-
DCA
1 stop22h 20m
Air New Zealand
Deal found 20/1$1,817
Mon 9/218:15
IAD
-
ADL
1 stop23h 45m
Air New Zealand
Mon 9/313:55
ADL
-
IAD
1 stop31h 31m
Air New Zealand
Deal found 20/1$1,817
Mon 11/506:59
DCA
-
ADL
3 stops41h 26m
Air Canada
Sun 17/520:00
ADL
-
DCA
3 stops39h 58m
Air Canada
Deal found 21/1$1,821
Mon 9/213:34
DCA
-
ADL
2 stops28h 51m
Qantas Airways
Mon 9/306:35
ADL
-
DCA
2 stops30h 55m
Qantas Airways
Deal found 20/1$1,836

Find flight deals from Washington, D.C. to Adelaide

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Adelaide (ADL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 January 2026.

Round-trip from

$1,787

One-way from

$1,499
Air Canada
  • Air Canada
  • 1/5-4/5
  • 6 total stops
  • 77h 23m total
  • Washington, D.C. to Adelaide
Search Deals
Qantas Airways
  • Qantas Airways
  • 28/5
  • 2 total stops
  • 26h 14m total
  • Washington, D.C. to Adelaide
Search Deals

Cheapflights Fare Finder

 
Customise 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, Cheapflights users made 647,157 searches. Data last updated 22 January 2026.
Use the filters below to find and compare flights from Washington, D.C. to Adelaide that are best for you.

Fly from

Washington, D.C.

Fly to

Adelaide

Route

Depart

Return

Price

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Fri 1/5

11:00-13:55

3 stops37h 25m

Adelaide

Mon 4/5

20:00-22:28

3 stops39h 58m

$1,787

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Mon 9/2

12:25-09:30

2 stops29h 35m

Adelaide

Mon 9/3

13:55-07:19

1 stop31h 54m

$1,799

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Wed 8/4

12:40-18:55

3 stops40h 45m

Adelaide

Sun 19/4

19:35-11:23

3 stops53h 18m

$1,810

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Mon 9/2

17:59-09:30

1 stop24h 01m

Adelaide

Mon 9/3

13:55-21:45

1 stop22h 20m

$1,817

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Wed 18/2

14:14-09:25

2 stops27h 41m

Adelaide

Wed 18/3

06:00-20:00

2 stops28h 30m

$1,817

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 9/2

18:15-09:30

1 stop23h 45m

Adelaide

Mon 9/3

13:55-06:56

1 stop31h 31m

$1,817

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Tue 10/2

15:41-11:50

2 stops28h 39m

Adelaide

Tue 10/3

09:00-22:59

2 stops28h 29m

$1,838

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Wed 18/2

15:21-10:55

2 stops28h 04m

Adelaide

Wed 18/3

09:00-18:13

2 stops23h 43m

$1,838

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Wed 4/2

20:00-09:30

2 stops46h 00m

Adelaide

Wed 4/3

14:55-21:39

1 stop22h 14m

$1,879

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sun 15/2

22:25-09:30

2 stops43h 35m

Adelaide

Sat 21/3

13:55-23:59

2 stops24h 34m

$1,879

Flights are sorted by cheapest return flights first.

Deals found on 20/1

Showing 1-10 of 24 results
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Best time to book a flight from Washington, D.C. to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Washington, D.C. with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Adelaide
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Adelaide. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Adelaide from Washington, D.C.?

    Adelaide (ADL) is the airport you will fly into if you book a flight from Washington, D.C. to Adelaide. You should not have trouble finding flights to Adelaide from Washington, D.C.; the airport handles an average of 0 inbound flights from Washington, D.C. per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Adelaide airport from Washington, D.C.. It is only a 6.6 km journey from Adelaide (ADL) to Adelaide’s city centre.

  • How long is the flight from Washington, D.C. to Adelaide?

    There are many flights that can get you from Washington, D.C. to Adelaide in 24h 01m. Fly via Air Canada, United Airlines, or Air New Zealand to get the fastest option. The distance from Washington, D.C. to Adelaide is about 16831 km. This flight may include one or multiple stops.

  • What are the most popular routes from Washington, D.C. to Adelaide?

    The most popular flight routes from Washington, D.C. to Adelaide are Baltimore/Washington - Adelaide, Washington, D.C. Dulles Intl - Adelaide and Washington, D.C. Reagan-National - Adelaide.

  • Can I find deals for flights from Washington, D.C. to Adelaide that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Adelaide flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Adelaide?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Adelaide.

  • Can I find deals for business class flights from Washington, D.C. to Adelaide?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Adelaide by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Washington, D.C. to Adelaide?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Washington, D.C. to Adelaide. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Adelaide?

Cheapflights simply makes it quick and affordable to book flights from Washington, D.C. to Adelaide by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Washington, D.C. to Adelaide with no change fees?

Certainly. Search results for flights to Adelaide from Washington, D.C. shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Washington, D.C. to Adelaide become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Adelaide from Washington, D.C. today and book when prices fit your budget.

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