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Cheap flights from Washington, D.C. to Adelaide from $794

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — ADL
9 May — 16 May1
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 9 April 2026.

Mon 3/819:08
DCA
-
ADL
2 stops26h 27m
Qantas Airways
Mon 17/806:25
ADL
-
DCA
2 stops26h 18m
Qantas Airways
Deal found 7/4$1,943
Sun 13/917:30
DCA
-
ADL
2 stops28h 05m
Multiple Airlines
Tue 29/906:25
ADL
-
DCA
2 stops26h 18m
Multiple Airlines
Deal found 6/4$1,989
Tue 1/909:30
DCA
-
ADL
2 stops36h 05m
Qantas Airways
Mon 14/919:10
ADL
-
DCA
2 stops37h 33m
Qantas Airways
Deal found 5/4$1,999
Mon 3/819:29
IAD
-
ADL
2 stops26h 06m
Qantas Airways
Mon 17/806:25
ADL
-
IAD
2 stops29h 52m
Qantas Airways
Deal found 7/4$2,001
Thu 7/508:30
DCA
-
ADL
2 stops37h 05m
Multiple Airlines
Wed 20/512:40
ADL
-
DCA
2 stops44h 56m
Multiple Airlines
Deal found 7/4$2,003
Thu 21/508:29
DCA
-
ADL
2 stops37h 06m
Multiple Airlines
Thu 28/519:45
ADL
-
DCA
2 stops37h 51m
Multiple Airlines
Deal found 5/4$2,044
Thu 7/519:17
BWI
-
ADL
2 stops26h 18m
Qantas Airways
Wed 20/506:25
ADL
-
BWI
2 stops25h 32m
Qantas Airways
Deal found 7/4$2,050
Sat 6/619:24
IAD
-
ADL
2 stops27h 01m
Qantas Airways
Wed 10/606:25
ADL
-
IAD
2 stops29h 52m
Qantas Airways
Deal found 6/4$2,098
Thu 21/519:10
BWI
-
ADL
2 stops27h 15m
Qantas Airways
Thu 28/519:10
ADL
-
BWI
2 stops37h 40m
Qantas Airways
Deal found 5/4$2,129
Tue 1/918:41
IAD
-
ADL
2 stops49h 14m
Qantas Airways
Mon 14/906:25
ADL
-
IAD
2 stops29h 52m
Qantas Airways
Deal found 6/4$2,135
Thu 4/617:16
DCA
-
ADL
2 stops28h 19m
Qantas Airways
Mon 8/614:25
ADL
-
DCA
2 stops44h 35m
Qantas Airways
Deal found 6/4$2,183
Thu 7/517:59
IAD
-
ADL
2 stops28h 26m
Qantas Airways
Wed 20/510:10
ADL
-
IAD
2 stops26h 46m
Qantas Airways
Deal found 7/4$2,235

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 9 April 2026.

Round-trip from

$1,943

One-way from

$794
Qantas Airways
  • Qantas Airways
  • 3/8-17/8
  • 4 total stops
  • 52h 45m total
  • Washington, D.C. to Adelaide
Search Deals
1/9
  • 1/9
  • 3 total stops
  • 37h 13m 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 9 April 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 return flight

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Thu 21/5

08:29-11:05

2 stops37h 06m

Adelaide

Thu 28/5

19:45-20:06

2 stops37h 51m

$2,044
Fastest return journey

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Thu 7/5

19:17-11:05

2 stops26h 18m

Adelaide

Wed 20/5

06:25-18:27

2 stops25h 32m

$2,050

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sat 6/6

19:24-11:55

2 stops27h 01m

Adelaide

Wed 10/6

06:25-22:47

2 stops29h 52m

$2,098

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Thu 4/6

17:16-11:55

2 stops29h 09m

Adelaide

Mon 8/6

14:25-21:30

2 stops44h 35m

$2,183

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Thu 21/5

19:24-11:15

2 stops26h 21m

Adelaide

Thu 28/5

06:25-18:34

2 stops25h 39m

$2,352

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Tue 1/9

17:45-11:05

2 stops27h 50m

Adelaide

Mon 14/9

12:05-06:55

2 stops32h 20m

$2,512

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Tue 1/9

19:10-09:25

2 stops48h 45m

Adelaide

Mon 14/9

12:40-19:27

2 stops44h 17m

$2,615

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Tue 1/9

11:47-11:15

3 stops33h 58m

Adelaide

Mon 14/9

06:25-19:27

2 stops26h 32m

$2,799

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 3/8

21:00-15:50

1 stop29h 20m

Adelaide

Mon 17/8

09:30-08:45

2 stops36h 45m

$2,824

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Tue 1/9

18:00-11:05

2 stops27h 35m

Adelaide

Mon 14/9

12:05-23:45

2 stops25h 10m

$2,825

Flights are sorted by cheapest return flights first.

Deals found on 5/4

Showing 1-10 of 27 resultsSorted by cheapest first
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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 26h 18m. Fly via Qantas Airways, Air New Zealand, or Qatar Airways to get the fastest option. The distance from Washington, D.C. to Adelaide is about 16864 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 Washington, D.C. Reagan-National - Adelaide, Baltimore/Washington - Adelaide and Washington, D.C. Dulles Intl - 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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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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