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$789+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ADL
Jul 16 — Jul 231
Wed 7/16
Wed 7/23
1 adult, Economy
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Cheap 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 July 11, 2025.

Round-trip from

$1,513
(Flightnetwork)

One-way from

$1,133
(American Airlines)

Popular in

December

Cheapest in

March

Average price

$1,757
From Washington, D.C. Dulles Intl to Adelaide
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One-way flight from Washington, D.C. Dulles Intl to Adelaide
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Highest demand for flights based on searches. 24% potential increase in price ($622 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($110 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 11, 2025.

This Flightnetwork deal was found by Cheapflights users on 7/8. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/228:50 amIAD - ADL
2 stops36h 35mAir New Zealand
Fri 8/2911:55 amADL - IAD
2 stops25h 30mAir New Zealand
Deal found 7/8$1,513
This Jetabroad deal was found by Cheapflights users on 7/10. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/248:10 amIAD - ADL
2 stops37h 55mMultiple Airlines
Thu 7/3112:35 pmADL - IAD
2 stops31h 45mMultiple Airlines
Deal found 7/10$1,534
This FlightHub deal was found by Cheapflights users on 7/9. 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.
Fri 9/55:40 pmIAD - ADL
2 stops27h 10mQantas Airways
Sat 10/46:30 amADL - IAD
2 stops29h 45mQantas Airways
Deal found 7/9$1,827
This Qatar Airways deal was found by Cheapflights users on 7/9. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2411:00 amIAD - ADL
2 stops34h 25mQatar Airways
Sun 8/319:40 pmADL - IAD
1 stop31h 30mQatar Airways
Deal found 7/9$1,951
This United Airlines deal was found by Cheapflights users on 7/10. 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 12/2610:07 pmIAD - ADL
2 stops43h 53mUnited Airlines
Sat 1/109:30 amADL - IAD
2 stops50h 50mUnited Airlines
Deal found 7/10$2,011
This BYOjet deal was found by Cheapflights users on 7/9. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/249:13 amIAD - ADL
3 stops37h 07mAir Canada
Sun 8/319:20 pmADL - IAD
3 stops37h 26mAir Canada
Deal found 7/9$2,350

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 July 11, 2025.
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

Dulles Intl

Fly to

Adelaide

Route

Depart

Return

Price

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Fri 8/22

8:50 am-10:55 am

2 stops36h 35m

Adelaide

Fri 8/29

11:55 am-11:55 pm

2 stops25h 30m

$1,513

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Thu 7/24

8:10 am-11:35 am

2 stops37h 55m

Adelaide

Thu 7/31

12:35 pm-6:50 am

2 stops31h 45m

$1,534

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Fri 9/5

5:40 pm-10:20 am

2 stops27h 10m

Adelaide

Sat 10/4

6:30 am-10:45 pm

2 stops29h 45m

$1,827

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sun 8/24

11:00 am-10:55 am

2 stops34h 25m

Adelaide

Sun 8/31

9:40 pm-3:40 pm

1 stop31h 30m

$1,951

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Fri 12/26

10:07 pm-9:30 am

2 stops43h 53m

Adelaide

Sat 1/10

9:30 am-8:50 pm

2 stops50h 50m

$2,011

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sun 8/24

9:13 am-11:50 am

3 stops37h 07m

Adelaide

Sun 8/31

9:20 pm-9:16 pm

3 stops37h 26m

$2,350

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 9/16

5:40 pm-11:35 am

2 stops28h 25m

$789

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Fri 10/3

5:40 pm-1:15 pm

2 stops30h 05m

$1,133

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 9/16

9:00 pm-3:50 pm

1 stop29h 20m

$1,436

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Fri 10/3

7:22 pm-9:55 am

2 stops49h 03m

$4,662

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 11 results
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

What is the cheapest time of day to fly from IAD to ADL?

Find hourly flight availability from Dulles Intl to Adelaide. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Adelaide as you normally would.

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 July 11, 2025.
Peruse reviews from past customers who have flown with Emirates, Air New Zealand, and 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.
Emirates
8.1
Very good
3,285 reviews

Comfort

8.0

Food

7.8

Crew

8.3

Boarding

8.1

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,285 reviews
Emirates
8.1
Very good
3,285 reviews

Comfort

8.0

Food

7.8

Crew

8.3

Boarding

8.1

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Air New Zealand
8.0
Very good
494 reviews
Emirates
8.1
Very good
3,285 reviews

Comfort

8.0

Food

7.8

Crew

8.3

Boarding

8.1

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qantas Airways
7.5
Good
876 reviews
Emirates
8.1
Very good
3,285 reviews

Comfort

8.0

Food

7.8

Crew

8.3

Boarding

8.1

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qatar Airways
7.4
Good
3,590 reviews
Emirates
8.1
Very good
3,285 reviews

Comfort

8.0

Food

7.8

Crew

8.3

Boarding

8.1

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
United Airlines
7.4
Good
8,846 reviews
Emirates
8.1
Very good
3,285 reviews

Comfort

8.0

Food

7.8

Crew

8.3

Boarding

8.1

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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.

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

    Flying on Air New Zealand is currently your cheapest option to Adelaide, with prices starting at $1,513. Additional round-trip tickets that might be worth considering are offered by Qantas Airways and Qatar Airways, with the lowest prices starting at $1,827 and $1,951, respectively. Air New Zealand is 21% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Adelaide one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Adelaide are American Airlines ($1,133), Qatar Airways ($1,502), and Air New Zealand ($4,662).

  • 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.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Adelaide?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Adelaide (average of $1,214). Flying from Washington, D.C. Dulles Intl Airport to Adelaide in December is currently the most expensive (average of $2,057). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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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 July 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,070Average$1,283FlexibilityNo cancel feeOn-time74%

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