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Cheap flights from Washington, D.C. to Adelaide from $715

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Adelaide departing on 11/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. to Adelaide

Cheap round-trip flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
3:48 pm - 9:25 am
BWI
-
ADL
27h 07m
2 stops
Qantas Airways Logo
6:30 pm - 6:17 pm
ADL
-
BWI
39h 17m
2 stops
$1,335Qantas Airways
Sat, Oct 24 - Sat, Nov 7
Air Canada Logo
8:29 am - 11:10 am
IAD
-
ADL
37h 11m
2 stops
Air Canada Logo
7:00 pm - 9:24 pm
ADL
-
IAD
39h 54m
3 stops
$1,535Air Canada
Sun, Sep 6 - Sun, Sep 20
Multiple Airlines Logo
10:19 pm - 12:35 pm
IAD
-
ADL
47h 46m
2 stops
Multiple Airlines Logo
9:25 am - 8:10 pm
ADL
-
IAD
50h 15m
2 stops
$1,541Multiple Airlines
Sat, Oct 24 - Sat, Nov 7
Multiple Airlines Logo
11:00 am - 12:35 pm
DCA
-
ADL
35h 05m
3 stops
Multiple Airlines Logo
6:55 pm - 7:57 pm
ADL
-
DCA
40h 32m
3 stops
$1,573Multiple Airlines
Sat, Oct 24 - Sat, Nov 7
Multiple Airlines Logo
11:00 am - 2:05 pm
DCA
-
ADL
36h 35m
2 stops
Multiple Airlines Logo
5:40 pm - 7:57 pm
ADL
-
DCA
41h 47m
2 stops
$1,578Multiple Airlines
Sat, Oct 24 - Sat, Nov 7
United Airlines Logo
6:00 pm - 2:10 pm
BWI
-
ADL
28h 40m
2 stops
United Airlines Logo
7:15 am - 9:30 pm
ADL
-
BWI
29h 45m
2 stops
$1,638United Airlines
Mon, Nov 23 - Mon, Dec 14
United Airlines Logo
6:52 pm - 11:10 am
BWI
-
ADL
26h 48m
2 stops
United Airlines Logo
6:05 am - 4:35 pm
ADL
-
BWI
24h 00m
2 stops
$1,641United Airlines
Mon, Sep 7 - Sun, Sep 20
American Airlines Logo
1:53 pm - 1:00 pm
BWI
-
ADL
31h 37m
3 stops
American Airlines Logo
6:25 am - 10:54 pm
ADL
-
BWI
31h 59m
2 stops
$1,665American Airlines
Mon, Nov 23 - Mon, Dec 14
Air New Zealand Logo
6:30 am - 10:55 am
IAD
-
ADL
36h 55m
2 stops
Air New Zealand Logo
7:50 am - 4:13 pm
ADL
-
IAD
23h 53m
2 stops
$1,711Air New Zealand
Mon, Nov 23 - Mon, Dec 14
Air New Zealand Logo
6:50 pm - 1:40 pm
IAD
-
ADL
27h 20m
2 stops
Air New Zealand Logo
11:55 am - 6:45 am
ADL
-
IAD
34h 20m
2 stops
$1,725Air New Zealand
Mon, Nov 23 - Mon, Dec 14

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United Airlines flights from Washington, D.C. to Adelaide

Our best United Airlines deals on Washington, D.C. to Adelaide flight tickets
United Airlines
Nov 23
BWI6:00 pmBaltimore/Washington
28h 40m
2 stops
ADL2:10 pmAdelaide
Dec 14
ADL7:15 amAdelaide
29h 45m
2 stops
BWI9:30 pmBaltimore/Washington
$1,638
United Airlines
Sep 7
BWI6:52 pmBaltimore/Washington
26h 48m
2 stops
ADL11:10 amAdelaide
Sep 20
ADL6:05 amAdelaide
24h 00m
2 stops
BWI4:35 pmBaltimore/Washington
$1,641
United Airlines
Sep 6
BWI9:00 amBaltimore/Washington
36h 25m
2 stops
ADL10:55 amAdelaide
Sep 20
ADL6:05 amAdelaide
24h 00m
2 stops
BWI4:35 pmBaltimore/Washington
$1,645

Air New Zealand flights from Washington, D.C. to Adelaide

Our best Air New Zealand deals on Washington, D.C. to Adelaide flight tickets
Air New Zealand
Nov 23
IAD6:30 amWashington, D.C. Dulles Intl
36h 55m
2 stops
ADL10:55 amAdelaide
Dec 14
ADL7:50 amAdelaide
23h 53m
2 stops
IAD4:13 pmWashington, D.C. Dulles Intl
$1,711
Air New Zealand
Nov 23
IAD6:50 pmWashington, D.C. Dulles Intl
27h 20m
2 stops
ADL1:40 pmAdelaide
Dec 14
ADL11:55 amAdelaide
34h 20m
2 stops
IAD6:45 amWashington, D.C. Dulles Intl
$1,725
Air New Zealand
Sep 6
IAD5:42 pmWashington, D.C. Dulles Intl
27h 53m
2 stops
ADL11:05 amAdelaide
Sep 18
ADL12:05 pmAdelaide
24h 10m
2 stops
IAD10:45 pmWashington, D.C. Dulles Intl
$1,780

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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, momondo users made 832,500 searches. Data last updated June 8, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Adelaide that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Sat 10/24

3:48 pm-9:25 am

2 stops27h 07m

Adelaide

Sat 11/7

6:30 pm-6:17 pm

2 stops39h 17m

$1,335

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sun 9/6

8:29 am-11:10 am

2 stops37h 11m

Adelaide

Sun 9/20

7:00 pm-9:24 pm

3 stops39h 54m

$1,535

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sat 10/24

10:19 pm-12:35 pm

2 stops47h 46m

Adelaide

Sat 11/7

9:25 am-8:10 pm

2 stops50h 15m

$1,541

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Sat 10/24

11:00 am-12:35 pm

3 stops35h 05m

Adelaide

Sat 11/7

6:55 pm-7:57 pm

3 stops40h 32m

$1,573

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Sat 10/24

11:00 am-2:05 pm

2 stops36h 35m

Adelaide

Sat 11/7

5:40 pm-7:57 pm

2 stops41h 47m

$1,578

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Mon 11/23

6:00 pm-2:10 pm

2 stops28h 40m

Adelaide

Mon 12/14

7:15 am-9:30 pm

2 stops29h 45m

$1,638
Quickest round-trip

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Mon 9/7

6:52 pm-11:10 am

2 stops26h 48m

Adelaide

Sun 9/20

6:05 am-4:35 pm

2 stops24h 00m

$1,641

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Mon 11/23

1:53 pm-1:00 pm

3 stops31h 37m

Adelaide

Mon 12/14

6:25 am-10:54 pm

2 stops31h 59m

$1,665

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 11/23

6:30 am-10:55 am

2 stops36h 55m

Adelaide

Mon 12/14

7:50 am-4:13 pm

2 stops23h 53m

$1,711

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 11/23

6:50 pm-1:40 pm

2 stops27h 20m

Adelaide

Mon 12/14

11:55 am-6:45 am

2 stops34h 20m

$1,725

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Washington, D.C. to Adelaide

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Washington, D.C. to Adelaide?

Qantas Airways is the most popular carrier operating from Washington, D.C. to Adelaide

When to book flights from Washington, D.C. to Adelaide

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Adelaide according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Adelaide (WAS to ADL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Adelaide

Fastest flight time

26h 26m

Direct flights

None
The fastest flight from Washington, D.C. to Adelaide takes 26h 26m
There are no direct flights from Washington, D.C. to Adelaide. There are no popular flight routes from Washington, D.C. to Adelaide.
Search flight deals

Frequently asked questions about flying from Washington, D.C. to Adelaide

  • How far is Washington, D.C. to Adelaide by plane?

    There are 10454.6 mi between Washington, D.C. and Adelaide. A reasonable flight in good conditions will take 26h 26m.

  • When did momondo last update prices for flights from Washington, D.C. to Adelaide Airport?

    Prices for flights from Washington, D.C. to Adelaide Airport refresh daily.

  • How many operators does momondo search for flights from Washington, D.C. to Adelaide Airport?

  • How old do you have to be to fly from Washington, D.C. to Adelaide Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Adelaide Airport.

  • What documentation or ID do you need to fly to Adelaide Airport?

    The necessary travel and health documents for your Adelaide Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Washington, D.C. to Adelaide?

Best airlines flying from Washington, D.C. to Adelaide

Compare and see reviews for airlines that fly from Washington, D.C. to Adelaide with momondo
Airline
Rating
Free Cancellation
Price
Qantas AirwaysPriceFrom $1,167Free CancellationRating
7.5
1,045 reviews
Search Qantas Airways flights

Traveling to a place near Adelaide?

Book flights to Adelaide if you plan to visit one of these locations
Glenelg

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Why should I use momondo to find a flight deal from Washington, D.C. to Adelaide?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Adelaide. momondo saves you time and could save you money on your trip.

Can I find flights from Washington, D.C. to Adelaide with flexible booking policies on momondo?

Flights from Washington, D.C. to Adelaide with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Washington, D.C. to Adelaide?

Once you have performed a search for Washington, D.C. to Adelaide flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to Adelaide right now. Can momondo alert me if prices change?

Price alerts on flights to Adelaide from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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