Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Washington, D.C. to Adelaide from $999

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 4/9. 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

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

Cheap return flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
15:22 - 09:25
DCA
-
ADL
28h 33m
2 stops
Qantas Airways Logo
10:10 - 21:20
ADL
-
DCA
24h 40m
2 stops
$1,914Qantas Airways
Wed, 9 Sep - Wed, 16 Sep
Qatar Airways Logo
21:00 - 14:45
IAD
-
ADL
51h 15m
2 stops
Qatar Airways Logo
22:00 - 15:40
ADL
-
IAD
32h 10m
1 stop
$1,922Qatar Airways
Mon, 5 Oct - Fri, 23 Oct
Qatar Airways Logo
21:00 - 15:00
IAD
-
ADL
28h 30m
1 stop
Qatar Airways Logo
07:15 - 08:45
ADL
-
IAD
39h 00m
2 stops
$1,938Qatar Airways
Mon, 7 Sep - Mon, 14 Sep
Qantas Airways Logo
17:35 - 11:05
DCA
-
ADL
28h 00m
2 stops
Qantas Airways Logo
10:10 - 21:20
ADL
-
DCA
24h 40m
2 stops
$1,944Qantas Airways
Wed, 9 Sep - Wed, 16 Sep
Qantas Airways Logo
16:56 - 11:05
IAD
-
ADL
28h 39m
2 stops
Qantas Airways Logo
06:25 - 20:24
ADL
-
IAD
27h 29m
2 stops
$1,950Qantas Airways
Wed, 9 Sep - Wed, 16 Sep
Qatar Airways Logo
21:00 - 15:00
IAD
-
ADL
28h 30m
1 stop
Qatar Airways Logo
07:15 - 08:45
ADL
-
IAD
39h 00m
2 stops
$1,952Qatar Airways
Mon, 7 Sep - Mon, 14 Sep
United Airlines Logo
13:10 - 11:05
DCA
-
ADL
32h 25m
3 stops
United Airlines Logo
06:05 - 22:30
ADL
-
DCA
29h 55m
2 stops
$1,961United Airlines
Wed, 9 Sep - Wed, 16 Sep
United Airlines Logo
18:52 - 10:55
BWI
-
ADL
26h 33m
2 stops
United Airlines Logo
20:00 - 17:40
ADL
-
BWI
35h 10m
2 stops
$1,964United Airlines
Mon, 7 Sep - Mon, 14 Sep
United Airlines Logo
18:35 - 10:55
IAD
-
ADL
26h 50m
2 stops
United Airlines Logo
20:00 - 20:50
ADL
-
IAD
38h 20m
2 stops
$1,964United Airlines
Mon, 7 Sep - Mon, 14 Sep
United Airlines Logo
17:45 - 10:55
DCA
-
ADL
27h 40m
2 stops
United Airlines Logo
20:00 - 16:43
ADL
-
DCA
34h 13m
2 stops
$1,964United Airlines
Mon, 7 Sep - Mon, 14 Sep

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Qantas Airways flights from Washington, D.C. to Adelaide

Our best Qantas Airways deals on Washington, D.C. to Adelaide flight tickets
Qantas Airways
9 Sept
DCA15:22Washington, D.C. Reagan-National
28h 33m
2 stops
ADL09:25Adelaide
16 Sept
ADL10:10Adelaide
24h 40m
2 stops
DCA21:20Washington, D.C. Reagan-National
$1,914
Qantas Airways
9 Sept
DCA17:35Washington, D.C. Reagan-National
28h 00m
2 stops
ADL11:05Adelaide
16 Sept
ADL10:10Adelaide
24h 40m
2 stops
DCA21:20Washington, D.C. Reagan-National
$1,944
Qantas Airways
9 Sept
IAD16:56Washington, D.C. Dulles Intl
28h 39m
2 stops
ADL11:05Adelaide
16 Sept
ADL06:25Adelaide
27h 29m
2 stops
IAD20:24Washington, D.C. Dulles Intl
$1,950

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

Our best United Airlines deals on Washington, D.C. to Adelaide flight tickets
United Airlines
9 Sept
DCA13:10Washington, D.C. Reagan-National
32h 25m
3 stops
ADL11:05Adelaide
16 Sept
ADL06:05Adelaide
29h 55m
2 stops
DCA22:30Washington, D.C. Reagan-National
$1,961
United Airlines
7 Sept
BWI18:52Baltimore/Washington
26h 33m
2 stops
ADL10:55Adelaide
14 Sept
ADL20:00Adelaide
35h 10m
2 stops
BWI17:40Baltimore/Washington
$1,964
United Airlines
9 Sept
BWI07:00Baltimore/Washington
37h 35m
2 stops
ADL10:05Adelaide
16 Sept
ADL06:00Adelaide
25h 10m
2 stops
BWI17:40Baltimore/Washington
$1,978

momondo Fare Finder

 
Customise 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 78,305 searches. Data last updated 29 July 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 return flight

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Wed 9/9

15:22-09:25

2 stops28h 33m

Adelaide

Wed 16/9

10:10-21:20

2 stops24h 40m

$1,914

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 5/10

21:00-14:45

2 stops51h 15m

Adelaide

Fri 23/10

22:00-15:40

1 stop32h 10m

$1,922

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 7/9

21:00-15:00

1 stop28h 30m

Adelaide

Mon 14/9

07:15-08:45

2 stops39h 00m

$1,938
Fastest return journey

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Wed 9/9

17:35-11:05

2 stops28h 00m

Adelaide

Wed 16/9

10:10-21:20

2 stops24h 40m

$1,944

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Wed 9/9

16:56-11:05

2 stops28h 39m

Adelaide

Wed 16/9

06:25-20:24

2 stops27h 29m

$1,950

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 7/9

21:00-15:00

1 stop28h 30m

Adelaide

Mon 14/9

07:15-08:45

2 stops39h 00m

$1,952

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Wed 9/9

13:10-11:05

3 stops32h 25m

Adelaide

Wed 16/9

06:05-22:30

2 stops29h 55m

$1,961

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Mon 7/9

18:52-10:55

2 stops26h 33m

Adelaide

Mon 14/9

20:00-17:40

2 stops35h 10m

$1,964

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 7/9

18:35-10:55

2 stops26h 50m

Adelaide

Mon 14/9

20:00-20:50

2 stops38h 20m

$1,964

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Mon 7/9

17:45-10:55

2 stops27h 40m

Adelaide

Mon 14/9

20:00-16:43

2 stops34h 13m

$1,964

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Adelaide from

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?

United Airlines, Qantas Airways, and Air New Zealand are the most popular carriers 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 return 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 04m

Direct flights

None
The fastest flight from Washington, D.C. to Adelaide takes 26h 04m
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 16825.0 km between Washington, D.C. and Adelaide. By plane, this route typically takes 26h 04m.

  • 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 are refreshed on a daily basis.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Adelaide Airport.

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

    The travel and health documents you'll need for your trip to Adelaide Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Adelaide Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Adelaide?

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

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Adelaide for you.

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

Yes. momondo enables you to select and highlight flights to Adelaide from Washington, D.C. with this policy.

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

Once all potential Washington, D.C. to Adelaide flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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.

An easier way to manage your Adelaide trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 28/8
Fri 4/9
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia