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Cheap flights from Washington, D.C. to Adelaide from $959

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 20/3. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — ADL
24 Mar — 31 Mar1
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 February 2026.

Mon 4/516:10
IAD
-
ADL
2 stops32h 15m
Singapore Airlines
Mon 1/620:00
ADL
-
IAD
2 stops47h 52m
Singapore Airlines
Deal found 18/2$1,408
Sun 19/409:40
DCA
-
ADL
2 stops36h 40m
Singapore Airlines
Thu 23/419:00
ADL
-
DCA
2 stops38h 23m
Singapore Airlines
Deal found 18/2$1,471
Mon 4/511:00
DCA
-
ADL
3 stops35h 20m
Air Canada
Mon 1/620:00
ADL
-
DCA
3 stops37h 28m
Air Canada
Deal found 18/2$1,490
Sun 19/420:40
DCA
-
ADL
2 stops51h 45m
Multiple Airlines
Fri 24/420:00
ADL
-
DCA
2 stops37h 23m
Multiple Airlines
Deal found 18/2$1,497
Mon 4/516:10
IAD
-
ADL
3 stops32h 15m
Air Canada
Mon 1/620:00
ADL
-
IAD
2 stops47h 52m
Air Canada
Deal found 18/2$1,497
Sun 19/409:00
IAD
-
ADL
2 stops37h 20m
Singapore Airlines
Thu 23/420:00
ADL
-
IAD
2 stops37h 59m
Singapore Airlines
Deal found 18/2$1,550
Tue 16/616:10
IAD
-
ADL
3 stops32h 15m
Multiple Airlines
Wed 22/719:35
ADL
-
IAD
2 stops48h 17m
Multiple Airlines
Deal found 18/2$1,552
Sat 18/409:40
DCA
-
ADL
2 stops36h 40m
Singapore Airlines
Thu 23/419:00
ADL
-
DCA
2 stops38h 23m
Singapore Airlines
Deal found 18/2$1,604
Mon 4/511:00
DCA
-
ADL
2 stops35h 20m
Singapore Airlines
Mon 1/620:00
ADL
-
DCA
2 stops37h 28m
Singapore Airlines
Deal found 18/2$1,628
Sat 18/420:40
DCA
-
ADL
3 stops51h 45m
Air Canada
Thu 23/419:00
ADL
-
DCA
3 stops41h 13m
Air Canada
Deal found 18/2$1,716
Tue 7/416:59
DCA
-
ADL
2 stops27h 51m
Multiple Airlines
Tue 14/406:00
ADL
-
DCA
2 stops27h 30m
Multiple Airlines
Deal found 21/2$1,727
Mon 6/416:04
DCA
-
ADL
2 stops32h 01m
Qantas Airways
Mon 13/406:00
ADL
-
DCA
2 stops30h 26m
Qantas Airways
Deal found 20/2$1,765

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 February 2026.

Round-trip from

$1,408

One-way from

$959
Singapore Airlines
  • Singapore Airlines
  • 4/5-1/6
  • 4 total stops
  • 80h 07m total
  • Washington, D.C. to Adelaide
Search Deals
20/3
  • 20/3
  • 3 total stops
  • 57h 10m 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 February 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

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 4/5

16:10-13:55

2 stops32h 15m

Adelaide

Mon 1/6

20:00-06:22

2 stops47h 52m

$1,408

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Sun 19/4

09:40-11:50

2 stops36h 40m

Adelaide

Thu 23/4

19:00-19:53

2 stops38h 23m

$1,471

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Mon 4/5

11:00-11:50

3 stops35h 20m

Adelaide

Mon 1/6

20:00-19:58

3 stops37h 28m

$1,490

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Sun 19/4

20:40-13:55

2 stops51h 45m

Adelaide

Fri 24/4

20:00-19:53

2 stops37h 23m

$1,497

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 16/6

16:10-13:55

3 stops32h 15m

Adelaide

Wed 22/7

19:35-06:22

2 stops48h 17m

$1,552

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 4/5

16:10-13:55

3 stops32h 15m

Adelaide

Mon 1/6

20:00-20:29

3 stops37h 59m

$1,573

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Sat 18/4

09:40-11:50

2 stops36h 40m

Adelaide

Thu 23/4

19:00-19:53

2 stops38h 23m

$1,604

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Mon 4/5

11:00-11:50

2 stops35h 20m

Adelaide

Mon 1/6

20:00-19:58

2 stops37h 28m

$1,628

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Sat 18/4

20:40-13:55

3 stops51h 45m

Adelaide

Thu 23/4

19:00-22:43

3 stops41h 13m

$1,716

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Tue 16/6

17:35-11:05

2 stops28h 00m

Adelaide

Wed 22/7

10:10-21:30

2 stops24h 50m

$1,742

Flights are sorted by cheapest return flights first.

Deals found on 18/2

Showing 1-10 of 34 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 27h 08m. Fly via Singapore Airlines, Air Canada, or Qantas 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. Dulles Intl - Adelaide, Washington, D.C. Reagan-National - Adelaide and Baltimore/Washington - 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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