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$635+ Cheap flights from Washington, D.C. (WAS) to Adelaide (ADL)

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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — ADL
Apr 26 — May 31
Sun 4/26
Sun 5/3
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Adelaide

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 March 27, 2026.

This Justfly.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:55 pm
DCA
-
ADL
3 stops53h 30m
Air Canada
Wed 5/274:30 pm
ADL
-
DCA
3 stops43h 28m
Air Canada
Deal found 3/23$1,141
This Priceline deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/69:55 am
IAD
-
ADL
3 stops36h 25m
Air Canada
Wed 5/138:00 pm
ADL
-
IAD
3 stops38h 55m
Air Canada
Deal found 3/23$1,159
This Gurufare deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:59 am
DCA
-
ADL
2 stops41h 26m
Multiple Airlines
Wed 5/275:15 pm
ADL
-
DCA
2 stops40h 13m
Multiple Airlines
Deal found 3/23$1,181
This Priceline deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:55 am
IAD
-
ADL
3 stops38h 30m
Air Canada
Wed 5/138:00 pm
ADL
-
IAD
3 stops52h 44m
Air Canada
Deal found 3/22$1,197
This Air Canada deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:40 am
DCA
-
ADL
3 stops36h 05m
Multiple Airlines
Tue 4/285:15 pm
ADL
-
DCA
3 stops42h 58m
Multiple Airlines
Deal found 3/24$1,204
This Air Canada deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/154:05 pm
IAD
-
ADL
3 stops34h 20m
Air Canada
Sat 5/236:55 pm
ADL
-
IAD
2 stops48h 57m
Air Canada
Deal found 3/25$1,207
This Air Canada deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:00 am
IAD
-
ADL
3 stops37h 20m
Air Canada
Tue 4/288:00 pm
ADL
-
IAD
3 stops52h 44m
Air Canada
Deal found 3/24$1,212
This Bravofly deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/214:59 pm
DCA
-
ADL
2 stops28h 46m
Qantas Airways
Tue 4/286:00 am
ADL
-
DCA
2 stops25h 30m
Qantas Airways
Deal found 3/24$1,218
This Gurufare deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/78:19 am
IAD
-
ADL
2 stops42h 06m
Multiple Airlines
Wed 5/134:30 pm
ADL
-
IAD
2 stops56h 14m
Multiple Airlines
Deal found 3/22$1,222
This Air Canada deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/154:05 pm
IAD
-
ADL
3 stops32h 20m
Multiple Airlines
Sat 5/235:15 pm
ADL
-
IAD
2 stops50h 37m
Multiple Airlines
Deal found 3/22$1,242
This Air Canada deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:59 am
DCA
-
ADL
3 stops39h 21m
Multiple Airlines
Wed 5/135:15 pm
ADL
-
DCA
3 stops40h 13m
Multiple Airlines
Deal found 3/23$1,250
This Priceline deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/63:46 pm
DCA
-
ADL
2 stops28h 09m
Qantas Airways
Wed 5/137:00 am
ADL
-
DCA
2 stops27h 50m
Qantas Airways
Deal found 3/23$1,273

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 March 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,141
(Justfly.com)

One-way from

$635
(Kiwi.com)

Popular in

January

Cheapest in

July

Average price

$2,358
Provider with most accurate pricing for Washington, D.C. (WAS)-Adelaide flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Adelaide flights.
Search Deals
From Washington, D.C. (WAS) to Adelaide
Search Deals
One-way flight from Washington, D.C. (WAS) to Adelaide
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($404 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($104 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated March 27, 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

Wed 5/6

9:55 am-11:50 am

3 stops36h 25m

Adelaide

Wed 5/13

8:00 pm-9:25 pm

3 stops38h 55m

$1,159

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Tue 4/21

9:40 am-11:15 am

3 stops36h 05m

Adelaide

Tue 4/28

5:15 pm-10:43 pm

3 stops42h 58m

$1,204

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Fri 5/15

4:05 pm-3:55 pm

3 stops34h 20m

Adelaide

Sat 5/23

6:55 pm-6:22 am

2 stops48h 57m

$1,207

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 4/21

9:00 am-11:50 am

3 stops37h 20m

Adelaide

Tue 4/28

8:00 pm-11:14 am

3 stops52h 44m

$1,212

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Wed 5/6

6:59 am-11:50 am

3 stops39h 21m

Adelaide

Wed 5/13

5:15 pm-7:58 pm

3 stops40h 13m

$1,250

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Fri 5/15

9:55 am-1:55 pm

2 stops38h 30m

Adelaide

Sat 5/23

6:55 pm-6:22 am

2 stops48h 57m

$1,276

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Wed 5/6

4:11 pm-9:25 am

2 stops27h 44m

Adelaide

Wed 5/13

7:50 am-11:09 pm

2 stops28h 49m

$1,282

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Wed 5/6

5:59 pm-11:05 am

2 stops27h 36m

Adelaide

Wed 5/13

10:10 am-11:26 pm

2 stops26h 46m

$1,286

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Thu 5/7

11:00 am-3:55 pm

3 stops39h 25m

Adelaide

Thu 5/14

8:00 pm-8:53 am

3 stops50h 23m

$1,292

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 4/21

9:00 am-11:50 am

3 stops37h 20m

Adelaide

Tue 4/28

5:15 pm-8:29 pm

3 stops40h 44m

$1,321

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

Showing 1-10 of 44 resultsSorted by cheapest first
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Compare providers for flights from Washington, D.C. to Adelaide

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Adelaide in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Adelaide flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Adelaide flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Adelaide flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Adelaide flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Adelaide flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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

How much does it cost to fly round-trip from Washington, D.C. to Adelaide?

Reviews of airlines servicing Adelaide

Get insights into the airlines that provide service to Adelaide. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Adelaide. Reviews last updated March 27, 2026.
Get a feel of what it's like to fly with Air New Zealand and United Airlines from Washington, D.C. to Adelaide by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very good
621 reviews

Entertainment

7.4

Food

7.4

Comfort

8.0

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Air New Zealand
8.0
Very good
621 reviews
Air New Zealand
8.0
Very good
621 reviews

Entertainment

7.4

Food

7.4

Comfort

8.0

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
United Airlines
7.4
Good
9,500 reviews
Air New Zealand
8.0
Very good
621 reviews

Entertainment

7.4

Food

7.4

Comfort

8.0

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

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.?

    If you book a flight to Adelaide from Washington, D.C., you will be flying to Adelaide, which is the city’s only airport. Adelaide (ADL) is located 4.1 mi from the center of Adelaide. There are 0 flights from Washington, D.C. to Adelaide per day from 2 different airlines.

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

    A quick flight from Washington, D.C. to Adelaide can take about 27h 44m. Air Canada provides one of the quickest options available for as low as $1,282. The distance between Washington, D.C. and Adelaide is about 10479 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Washington, D.C. to Adelaide round-trip?

    Flying on Qantas Airways is currently your cheapest option to Adelaide, with prices starting at $1,167. Another option worth looking into is Air New Zealand, starting at $1,436 round trip. Users have found that Qantas Airways is 40% cheaper than the other options available to this destination.

  • 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, Washington, D.C. Dulles Intl - 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 vacation 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

Traveling to a place near Adelaide?

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

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Top 2 airlines flying from Washington, D.C. to Adelaide

Discover the top 2 airlines that operate flights from Washington, D.C. to Adelaide. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,167Average$1,223FlexibilityNo cancel feeOn-time74%
Air New ZealandCheapest$1,436Average$1,661FlexibilityNo cancel feeOn-time78%

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