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$1,108+ Cheap flights from Dulles Intl (IAD) 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ADL
May 24 — May 311
Sun 5/24
Sun 5/31
1 adult, Economy
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Cheap flight deals from Dulles Intl to Adelaide

Cheapest flights from Dulles Intl to Adelaide
Explore the most affordable flight options available from Dulles Intl to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.

This oojo deal was found by Cheapflights users on 4/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:24 pm
IAD
-
ADL
2 stops26h 11m
Qantas Airways
Thu 6/112:25 pm
ADL
-
IAD
2 stops41h 39m
Qantas Airways
Deal found 4/20$1,507
This oojo deal was found by Cheapflights users on 4/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/77:24 pm
IAD
-
ADL
2 stops48h 31m
Qantas Airways
Sun 6/147:45 pm
ADL
-
IAD
2 stops40h 32m
Qantas Airways
Deal found 4/23$1,511
This oojo deal was found by Cheapflights users on 4/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/217:24 pm
IAD
-
ADL
2 stops48h 31m
Qantas Airways
Thu 7/28:00 pm
ADL
-
IAD
2 stops36h 02m
Qantas Airways
Deal found 4/20$1,517
This oojo deal was found by Cheapflights users on 4/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/84:58 pm
IAD
-
ADL
2 stops30h 57m
Qantas Airways
Sun 12/139:00 am
ADL
-
IAD
2 stops29h 13m
Qantas Airways
Deal found 4/20$1,699
This Ovago deal was found by Cheapflights users on 4/19. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/35:55 pm
IAD
-
ADL
2 stops27h 30m
Air New Zealand
Wed 6/106:00 am
ADL
-
IAD
2 stops32h 25m
Air New Zealand
Deal found 4/19$1,800
This oojo deal was found by Cheapflights users on 4/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:30 am
IAD
-
ADL
2 stops38h 55m
Air New Zealand
Tue 6/307:10 pm
ADL
-
IAD
2 stops34h 46m
Air New Zealand
Deal found 4/23$1,867
This United Airlines deal was found by Cheapflights users on 4/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/108:21 pm
IAD
-
ADL
2 stops49h 04m
United Airlines
Sat 7/184:30 pm
ADL
-
IAD
2 stops43h 19m
United Airlines
Deal found 4/20$1,996
This KAYAK deal was found by Cheapflights users on 4/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/810:20 pm
IAD
-
ADL
2 stops47h 05m
Air New Zealand
Sat 5/162:20 pm
ADL
-
IAD
2 stops48h 01m
Air New Zealand
Deal found 4/22$2,080
This Air Canada deal was found by Cheapflights users on 4/19. 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 6/34:05 pm
IAD
-
ADL
3 stops30h 15m
Air Canada
Wed 6/106:55 pm
ADL
-
IAD
2 stops48h 57m
Air Canada
Deal found 4/19$2,135
This Booking.com deal was found by Cheapflights users on 4/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/49:55 am
IAD
-
ADL
3 stops38h 30m
Air Canada
Thu 6/116:55 pm
ADL
-
IAD
2 stops48h 57m
Air Canada
Deal found 4/20$2,226
This FlightHub deal was found by Cheapflights users on 4/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/14:05 pm
IAD
-
ADL
3 stops30h 15m
Air Canada
Tue 6/308:00 pm
ADL
-
IAD
2 stops47h 52m
Air Canada
Deal found 4/23$2,246
This Gotogate deal was found by Cheapflights users on 4/23. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/79:55 am
IAD
-
ADL
3 stops38h 30m
Air Canada
Sun 6/146:55 pm
ADL
-
IAD
2 stops48h 57m
Air Canada
Deal found 4/23$2,316

Find flight deals from Dulles Intl to Adelaide

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 April 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,507
(oojo)

One-way from

$1,108
(Kiwi.com)

Popular in

April

Cheapest in

June

Average price

$2,418
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. Dulles Intl to Adelaide
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Adelaide
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($237 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($75 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 April 24, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport 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

Thu 6/4

7:24 pm-11:05 am

2 stops26h 11m

Adelaide

Thu 6/11

2:25 pm-6:34 pm

2 stops41h 39m

$1,507

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 6/1

6:30 am-10:55 am

2 stops38h 55m

Adelaide

Tue 6/30

7:10 pm-4:26 pm

2 stops34h 46m

$1,867

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Fri 7/10

8:21 pm-10:55 am

2 stops49h 04m

Adelaide

Sat 7/18

4:30 pm-10:19 pm

2 stops43h 19m

$1,996

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Fri 5/8

10:20 pm-10:55 am

2 stops47h 05m

Adelaide

Sat 5/16

2:20 pm-12:51 am

2 stops48h 01m

$2,080

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Wed 6/3

4:05 pm-11:50 am

3 stops30h 15m

Adelaide

Wed 6/10

6:55 pm-6:22 am

2 stops48h 57m

$2,135
Quickest round-trip

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 6/1

9:00 pm-9:10 pm

2 stops34h 40m

Adelaide

Tue 6/30

10:00 pm-3:40 pm

1 stop31h 10m

$2,510

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Wed 6/3

10:55 am-8:05 pm

1 stop43h 40m

Adelaide

Wed 6/10

10:00 pm-8:40 am

1 stop48h 10m

$2,682

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Fri 5/8

10:55 am-8:05 pm

1 stop43h 40m

Adelaide

Sat 5/16

10:00 pm-8:40 am

1 stop48h 10m

$2,685

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Thu 6/4

10:55 am-8:05 pm

1 stop43h 40m

Adelaide

Thu 6/11

10:00 pm-8:40 am

1 stop48h 10m

$2,731

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sun 6/21

7:24 pm-11:15 am

2 stops50h 21m

Adelaide

Thu 7/2

10:00 pm-3:40 pm

1 stop31h 10m

$2,749

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/19

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

Best time to book a flight from Dulles Intl to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Dulles Intl 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. Dulles Intl Airport to Adelaide

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport 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 April 24, 2026.
Peruse reviews from past customers who have flown with Qantas Airways from Washington, D.C. Dulles Intl Airport to Adelaide to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
1,025 reviews

Comfort

7.5

Entertainment

7.2

Boarding

7.7

Food

7.0

Crew

8.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Midhat,Apr 2026

AKL - ADL

Poor as usual. Flight was delayed for more than 4 hours. The Staff was rude. Food was terrible. Very unreliable, unprofessional and unpleasant.
Qantas Airways
7.5
Good
1,025 reviews
Qantas Airways
7.5
Good
1,025 reviews

Comfort

7.5

Entertainment

7.2

Boarding

7.7

Food

7.0

Crew

8.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Midhat,Apr 2026

AKL - ADL

Poor as usual. Flight was delayed for more than 4 hours. The Staff was rude. Food was terrible. Very unreliable, unprofessional and unpleasant.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl?

    Located just 4.1 mi from the city center, Adelaide is the airport most travelers will use when flying to Adelaide from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Adelaide (ADL) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 1 airline.

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

    Departing from Washington, D.C. Dulles Intl Airport to Adelaide will take you 26h 11m. The distance between Washington, D.C. Dulles Intl Airport and Adelaide is about 10437 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Adelaide round-trip?

    Flying on Qantas Airways is currently your cheapest option to Adelaide, with prices starting at $1,167. Qantas Airways is 33% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Dulles Intl to Adelaide that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Adelaide flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Adelaide?

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

  • Can I find deals for business class flights from Dulles Intl to Adelaide?

    Yes. Cheapflights offers flight deals from Dulles Intl 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?

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Glenelg

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Top airline flying from Dulles Intl to Adelaide

Discover the top airline that operate flights from Dulles Intl 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 April 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,167Average$1,223FlexibilityNo cancel feeOn-time74%

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