IAD - ADL

$503 Find Cheap Flights from Washington Dulles Airport to Adelaide - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Adelaide departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Adelaide

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Adelaide, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Adelaide, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$1,545
Air New Zealand
Fri 8/7Fri 8/14
IAD - ADL • 2 stops
Cheapest one-way
$503
Multiple Airlines
Sat 8/15
IAD - ADL • 3 stops
Top airlines
Cheapest • from $1,545 (round-trip)
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Adelaide. You'll need at least 1 connection.
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We hope you love your trip to Adelaide!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Adelaide (IAD-ADL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Adelaide that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Adelaide

Fri, Aug 7 - Fri, Aug 14
Air New Zealand Logo
6:30 am - 10:55 am
IAD
-
ADL
38h 55m
2 stops
Air New Zealand Logo
12:05 pm - 10:45 pm
ADL
-
IAD
24h 10m
2 stops
$1,545Air New Zealand
Tue, Nov 24 - Wed, Dec 30
Air New Zealand Logo
12:46 pm - 10:55 am
IAD
-
ADL
30h 39m
2 stops
Air New Zealand Logo
6:00 am - 9:27 pm
ADL
-
IAD
30h 57m
2 stops
$1,650Air New Zealand
Tue, Nov 24 - Mon, Dec 28
Air New Zealand Logo
12:46 pm - 10:55 am
IAD
-
ADL
30h 39m
2 stops
Air New Zealand Logo
7:00 pm - 7:07 pm
ADL
-
IAD
39h 37m
2 stops
$1,788Air New Zealand
Tue, Nov 24 - Sun, Dec 27
Air New Zealand Logo
6:00 am - 10:55 am
IAD
-
ADL
37h 25m
2 stops
Air New Zealand Logo
7:00 pm - 4:13 pm
ADL
-
IAD
36h 43m
2 stops
$1,800Air New Zealand
Tue, Nov 24 - Wed, Dec 30
Air New Zealand Logo
5:42 pm - 1:55 pm
IAD
-
ADL
28h 43m
2 stops
Air New Zealand Logo
2:55 pm - 9:27 pm
ADL
-
IAD
22h 02m
1 stop
$1,885Air New Zealand
Fri, Jul 31 - Sat, Aug 8
Air New Zealand Logo
10:20 pm - 10:55 am
IAD
-
ADL
47h 05m
2 stops
Air New Zealand Logo
7:45 pm - 7:33 am
ADL
-
IAD
49h 18m
2 stops
$1,910Air New Zealand
Fri, Aug 7 - Thu, Aug 20
Air New Zealand Logo
10:20 pm - 10:55 am
IAD
-
ADL
47h 05m
2 stops
Air New Zealand Logo
8:00 pm - 4:23 pm
ADL
-
IAD
33h 53m
2 stops
$1,923Air New Zealand
Thu, Aug 6 - Thu, Aug 13
Air New Zealand Logo
10:20 pm - 10:55 am
IAD
-
ADL
47h 05m
2 stops
Air New Zealand Logo
7:45 pm - 4:23 pm
ADL
-
IAD
34h 08m
2 stops
$1,983Air New Zealand
Tue, Nov 24 - Sun, Dec 27
Qatar Airways Logo
8:05 pm - 4:30 pm
IAD
-
ADL
28h 55m
1 stop
Qatar Airways Logo
10:00 pm - 3:55 pm
ADL
-
IAD
33h 25m
1 stop
$2,013Qatar Airways
Tue, Nov 24 - Mon, Dec 28
Qatar Airways Logo
8:05 pm - 4:30 pm
IAD
-
ADL
28h 55m
1 stop
Qatar Airways Logo
6:20 pm - 3:55 pm
ADL
-
IAD
61h 05m
2 stops
$2,031Qatar Airways
Booking Insights

KAYAK's insights & trends for Dulles Intl to Adelaide flights

Get data-powered insights and trends into flights from Dulles Intl to Adelaide to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Washington Dulles Airport to Adelaide?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Washington Dulles Airport to Adelaide were found on Air New Zealand ($1,545) and Qatar Airways ($2,013).

Good to know

Cheapest flight$503
Flight from Washington Dulles Airport to Adelaide

When to book flights from Dulles Intl to Adelaide

Are your dates flexible? Find out the best times to travel from Dulles Intl to Adelaide based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Adelaide flights

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

    In the last 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Adelaide was $503 for a one-way ticket and $1,545 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Adelaide?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington Dulles Airport and on arrival in Adelaide.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Adelaide?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Adelaide?

    oneworld is the only airline alliance operating flights between Washington Dulles Airport and Adelaide.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Adelaide?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Adelaide.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Adelaide?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Adelaide from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Adelaide?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Adelaide with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and ADL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Adelaide?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Adelaide from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Dulles Intl to Adelaide

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Adelaide. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Adelaide? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Qantas AirwaysOverall score based on 1050 reviews
8.1Crew
7.2Entertainment
7.7Boarding
7.5Comfort
7.0Food
Airline reviews

I think it is much better than the flight I flew from Sydney to Tokyo.

8.0 ExcellentMarianna, Jun 2026
HND - SYD
Read more Qantas Airways reviews

I think it is much better than the flight I flew from Sydney to Tokyo.

Boarding was effortless, the food was outstanding, the seats in Premium Economy were extremely comfortable, and the staff and crew were excellent.

I never flew with alliance. Kayak is a joke and none of the flights or times were correct. Won’t ever use kayak again

I missed my flight due to unforeseen circumstances It was, however , an excellent price !

We had a medical emergency, needing to get to an emergency room upon landing at LAX. I let the back flight attendants know the situation. One, David, contacted the pilot, who made arrangements for EMT's to be there when we got off the plane. They went above and beyond for us. We didn't have to go through customs, as a customs person came to us and checked us right at the exit of the jet way. Another wonderful woman, a United employee at LAX, perhaps a customer service liaison, took care of our luggage situation, as we weren't going to make our connection to Bozeman. When we came back to LAX to see when we could get a flight to Bozeman, the personnel are very accommodating and booked us on the next flight out, and assigned good seats. It was a horrible flight, physically, from Sydney to LAX, , but the professionalism of all involved was excellent! We are very grateful fir the way they all stepped in and helped during a very unpleasant medical situation. Thank you!!

PREMIUM ECONOMY - excellent !Brilliant new plane. Excellent tv catalogue. Good food. Good communication and service from all friend Australian crew. Good communication from captain. Best travel experience in years.

Very good overall. However, your choices of free movies was limited and there was no music Channel???

I couldn't hear all of the announcements. It was nice when they put them on the screen.

This was the worst flight I’ve been on. Getting on the plane where is was 30 degrees outside was hotter on board cabin must’ve been 33 degrees. This is a health hazard. They cannot be doing this to save on fuel. People could die from this!!. Fans and a/c was, off entertainment was off. Poor excuse given. Crew made the excuse that the system didn’t have enough power. They basically were operating on one engine to save on jet fuel till 3 hours later on cruising altitude and they then started the second engine. And finally the cabin was cooled. On a 7hour red eye flight this made it so uncomfortable and impossible to sleep.

My experience was great overall. Tanya was particularly friendly and helpful the entire trip. I was very pleased with her customer service skills. The plane was an older aircraft but the entire way was comfortable with barely any turbulence at all. Qantas should speed up its fleet renovation. Totally recommend using this airline.

Everything you need to know for your flight from Dulles Intl to Adelaide

Information on your arrival and departure airports