IAD - ADL

$1,285 Find Cheap Flights from Washington Dulles Airport to Adelaide

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Adelaide departing on 11/9. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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

Sun, Nov 9 - Mon, Nov 17
Air New Zealand Logo
3:25 pm - 10:55 amIAD-ADL
28h 00m2 stops
Air New Zealand Logo
11:55 am - 9:26 pmADL-IAD
25h 01m2 stops
$1,285Air New Zealand
Find Deal
Thu, Oct 30 - Fri, Nov 7
Air New Zealand Logo
10:10 pm - 10:55 amIAD-ADL
46h 15m2 stops
Air New Zealand Logo
11:55 am - 9:25 pmADL-IAD
25h 00m2 stops
$1,392Air New Zealand
Find Deal
Tue, Oct 21 - Sun, Oct 26
Qatar Airways Logo
9:00 pm - 7:40 amIAD-ADL
44h 10m2 stops
Qatar Airways Logo
6:00 am - 4:55 pmADL-IAD
49h 25m2 stops
$1,934Qatar Airways
Find Deal
Tue, Oct 21 - Mon, Oct 27
Qantas Airways Logo
5:37 pm - 4:15 pmIAD-ADL
32h 08m2 stops
Qantas Airways Logo
7:00 pm - 10:51 pmADL-IAD
42h 21m2 stops
$1,950Qantas Airways
Find Deal
Tue, Oct 21 - Mon, Oct 27
Air Canada Logo
3:36 pm - 1:55 pmIAD-ADL
31h 49m3 stops
Air Canada Logo
6:00 am - 8:29 pmADL-IAD
28h 59m3 stops
$1,952Air Canada
Find Deal
Tue, Oct 21 - Sun, Oct 26
Qatar Airways Logo
9:00 pm - 7:40 amIAD-ADL
44h 10m2 stops
Qatar Airways Logo
6:00 am - 4:55 pmADL-IAD
49h 25m2 stops
$2,005Qatar Airways
Find Deal
Sat, Feb 14 - Sat, Mar 14
Multiple Airlines Logo
12:40 pm - 2:05 pmIAD-ADL
33h 55m3 stops
Multiple Airlines Logo
7:40 pm - 8:29 pmADL-IAD
39h 19m3 stops
$2,034Multiple Airlines
Find Deal
Tue, Oct 21 - Sun, Oct 26
Air Canada Logo
12:41 pm - 1:55 pmIAD-ADL
34h 44m3 stops
Air Canada Logo
6:00 am - 8:29 pmADL-IAD
28h 59m3 stops
$2,052Air Canada
Find Deal
Sat, Feb 14 - Sat, Mar 14
Multiple Airlines Logo
12:40 pm - 2:05 pmIAD-ADL
33h 55m3 stops
Multiple Airlines Logo
7:40 pm - 8:29 pmADL-IAD
39h 19m3 stops
$2,054Multiple Airlines
Find Deal
Tue, Nov 18 - Sun, Dec 7
Qantas Airways Logo
5:27 pm - 7:35 pmIAD-ADL
34h 38m2 stops
Qantas Airways Logo
2:30 pm - 10:59 pmADL-IAD
47h 59m3 stops
$2,430Qantas Airways
Find Deal

Everything you should know

Top airlines
Air New Zealand
Cheapest • from $1,285 (round-trip)
Qantas Airways
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$1,285
Air New Zealand
Sun 11/9Mon 11/17
IAD - ADL • 2 stops
Cheapest one-way
Multiple Airlines
Thu 9/18
IAD - ADL • multi-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Adelaide!
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 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington Dulles Airport to Adelaide were found on Air New Zealand ($1,285) and Qatar Airways ($1,934).

Good to know

Low seasonMarch
Cheapest flight$1,285
Best time to beat the crowds with an average 42% drop in price.
Most popular time to fly and prices are also 42% lower on average.
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 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Adelaide was $1,285 for a round-trip ticket.

  • 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?

    Star Alliance, and oneworld are the airline alliances operating flights between Washington Dulles Airport and Adelaide, with Star Alliance being the most commonly used for this route.

  • 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 907 reviews
7.7Boarding
8.2Crew
7.5Comfort
7.2Entertainment
7.0Food
Airline reviews

A few more inches of legroom is all i ask

8.0 ExcellentTerry, Aug 2025CNS - SYD
Read more Qantas Airways reviews

A few more inches of legroom is all i ask

One of the best Qantas business flights I've had. Quality product

Business class points redemption - good value for points paid, dubious value if out of your own pocket, domestic class business product okay for this length of flight. The flight left and arrived on time, crew were good, aircraft was a bit old and tired, but still miles ahead of their competitors in Virgin and Jetstar.

Airline running better than post Covid, proper boarding process now implemented, some aircraft feeling a bit old and tired, crew fine, online experience better.

Five hour flight instead of four hours due to westerly headwinds which wasn’t the fault of Qantas !

The wifi was out. Otherwise it was great flight. Richard, as CSM, was excellent.

Was bumped to a later flight because of inefficiency on part of the airline.

The Emerits/Qantas flight was cancelled to Wellington. We need a refund. Had to buy another airline ticket. How do we get the refund. Still not in Wellington.

Delayed QF59 flight once again, Qantas doesn't fail in maintaining there delayed departures and arrivals. USB points do not work nor do the power point sockets on the plane, Qantas staff admitted that on the flight. Don't expect to your charge devices. Saving grace, was the ice cream. Bottom line, if you expect to fly to HND and make it on time avoid Qantas and if you're interested in ice cream - visit 7/11.

Pretty excellent. I don’t know what the pilot could have done better with the bumping ( there was a storm) nor what happened to my ears coming down into bendigo. It doesn’t happen coming down into Sydney just the return flight. I wonder why?

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.