IAD - ADL

$707 Find Cheap Flights from Washington Dulles Airport to Adelaide

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 3/23. 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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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

Sat, Feb 21 - Wed, Feb 25
Air Canada Logo
10:09 pm - 1:55 pmIAD-ADL
48h 16m3 stops
Air Canada Logo
7:55 pm - 9:21 pmADL-IAD
40h 56m3 stops
$891Air Canada
Find Deal
Wed, Nov 26 - Wed, Dec 3
Multiple Airlines Logo
10:11 pm - 2:05 pmIAD-ADL
48h 24m3 stops
Multiple Airlines Logo
7:55 pm - 11:45 amADL-IAD
55h 20m3 stops
$975Multiple Airlines
Find Deal
Mon, Nov 10 - Sun, Nov 30
American Airlines Logo
6:04 am - 1:40 pmIAD-ADL
40h 06m2 stops
American Airlines Logo
7:50 am - 10:41 pmADL-IAD
30h 21m2 stops
$1,448American Airlines
Find Deal
Wed, Nov 26 - Wed, Dec 3
American Airlines Logo
6:04 am - 11:50 amIAD-ADL
38h 16m2 stops
American Airlines Logo
7:50 am - 10:59 pmADL-IAD
30h 39m2 stops
$1,460American Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
4:10 pm - 9:30 amIAD-ADL
25h 50m1 stop
United Airlines Logo
2:55 pm - 6:51 amADL-IAD
31h 26m1 stop
$1,488United Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
2:12 pm - 9:30 amIAD-ADL
27h 48m2 stops
United Airlines Logo
2:55 pm - 8:48 pmADL-IAD
21h 23m1 stop
$1,493United Airlines
Find Deal
Mon, Mar 9 - Fri, Mar 20
Air New Zealand Logo
4:10 pm - 10:55 amIAD-ADL
28h 15m2 stops
Air New Zealand Logo
11:55 am - 9:05 pmADL-IAD
23h 40m2 stops
$1,518Air New Zealand
Find Deal
Sun, Nov 16 - Mon, Dec 8
Qantas Airways Logo
5:03 pm - 7:35 pmIAD-ADL
35h 02m2 stops
Qantas Airways Logo
7:00 pm - 4:18 pmADL-IAD
36h 48m2 stops
$1,609Qantas Airways
Find Deal
Tue, Nov 18 - Sun, Dec 7
Qantas Airways Logo
5:27 pm - 10:05 pmIAD-ADL
37h 08m2 stops
Qantas Airways Logo
7:00 pm - 10:59 pmADL-IAD
43h 29m2 stops
$1,639Qantas Airways
Find Deal
Mon, Nov 17 - Sun, Dec 7
Air New Zealand Logo
6:39 pm - 10:30 pmIAD-ADL
36h 21m2 stops
Air New Zealand Logo
11:55 am - 11:23 amADL-IAD
38h 58m2 stops
$1,912Air New Zealand
Find Deal

Everything you should know

Top airlines
Air Canada
Cheapest • from $891 (round-trip)
Qantas Airways
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$891
Air Canada
Sat 2/21Wed 2/25
IAD - ADL • 3 stops
Cheapest one-way
$707
Multiple Airlines
Mon 3/23
IAD - ADL • 3 stops
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 Canada ($891) and American Airlines ($1,448).

Which airlines fly non-stop between Washington, D.C. Dulles Intl Airport and Adelaide?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Washington, D.C. Dulles Intl Airport to Adelaide.

There is just one airline that flies from Washington, D.C. Dulles Intl Airport to Adelaide direct and that is Qantas Airways. The best round-trip deal found from Qantas Airways for the route is $1,070.

Good to know

Low seasonMarch
Cheapest flight$707
Best time to beat the crowds with an average 41% drop in price.
Most popular time to fly and prices are also 41% 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 $707 for a one-way ticket and $891 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 925 reviews
7.7Boarding
7.2Entertainment
8.2Crew
7.5Comfort
7.0Food
Airline reviews

After already paying for excess luggage prior to flight, i was advised AT check in that i had to pay $816 or forfeit my flight! The lady at the counter was SO rude and had already started offboarding me when i said i would pay it after asking her three times for the exact amount! Have lodged a formal complaint yet heard nothing. Will not ever travel via Qantas again

2.0 MediocreR, Oct 2025WLG - BNE
Read more Qantas Airways reviews

After already paying for excess luggage prior to flight, i was advised AT check in that i had to pay $816 or forfeit my flight! The lady at the counter was SO rude and had already started offboarding me when i said i would pay it after asking her three times for the exact amount! Have lodged a formal complaint yet heard nothing. Will not ever travel via Qantas again

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.

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

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