Cheap flights from Washington, D.C. to Adelaide from $1,499

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 28/5. 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

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Cheap return flights

Enter your travel dates to find the best prices.
Air Canada Logo
11:00 - 13:55
DCA
-
ADL
37h 25m
3 stops
Air Canada Logo
20:00 - 22:28
ADL
-
DCA
39h 58m
3 stops
$1,787Air Canada
Fri, 1 May - Mon, 4 May
United Airlines Logo
12:25 - 09:30
BWI
-
ADL
29h 35m
2 stops
United Airlines Logo
13:55 - 07:19
ADL
-
BWI
31h 54m
1 stop
$1,799United Airlines
Mon, 9 Feb - Mon, 9 Mar
United Airlines Logo
16:10 - 09:30
IAD
-
ADL
25h 50m
1 stop
United Airlines Logo
13:55 - 05:36
ADL
-
IAD
30h 11m
1 stop
$1,799United Airlines
Mon, 16 Feb - Mon, 16 Mar
Qantas Airways Logo
13:34 - 09:25
DCA
-
ADL
28h 21m
2 stops
Qantas Airways Logo
12:00 - 20:57
ADL
-
DCA
24h 27m
2 stops
$1,801Qantas Airways
Wed, 4 Feb - Wed, 4 Mar
United Airlines Logo
12:25 - 09:30
BWI
-
ADL
29h 35m
2 stops
United Airlines Logo
13:55 - 05:05
ADL
-
BWI
29h 40m
2 stops
$1,805United Airlines
Mon, 9 Feb - Mon, 9 Mar
Multiple Airlines Logo
12:40 - 18:55
IAD
-
ADL
40h 45m
3 stops
Multiple Airlines Logo
19:35 - 11:23
ADL
-
IAD
53h 18m
3 stops
$1,810Multiple Airlines
Wed, 8 Apr - Sun, 19 Apr
Multiple Airlines Logo
11:00 - 13:55
DCA
-
ADL
37h 25m
2 stops
Multiple Airlines Logo
20:00 - 22:28
ADL
-
DCA
39h 58m
2 stops
$1,814Multiple Airlines
Mon, 11 May - Sun, 17 May
Air New Zealand Logo
17:59 - 09:30
DCA
-
ADL
24h 01m
1 stop
Air New Zealand Logo
13:55 - 21:45
ADL
-
DCA
22h 20m
1 stop
$1,817Air New Zealand
Mon, 9 Feb - Mon, 9 Mar
Air New Zealand Logo
18:15 - 09:30
IAD
-
ADL
23h 45m
1 stop
Air New Zealand Logo
13:55 - 06:56
ADL
-
IAD
31h 31m
1 stop
$1,817Air New Zealand
Mon, 9 Feb - Mon, 9 Mar
Qantas Airways Logo
13:34 - 09:55
DCA
-
ADL
28h 51m
2 stops
Qantas Airways Logo
06:35 - 23:00
ADL
-
DCA
30h 55m
2 stops
$1,836Qantas Airways
Mon, 9 Feb - Mon, 9 Mar

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
9 Feb
DCA17:59Washington, D.C. Reagan-National
24h 01m
1 stop
ADL09:30Adelaide
9 Mar
ADL13:55Adelaide
22h 20m
1 stop
DCA21:45Washington, D.C. Reagan-National
$1,817
Air New Zealand
7 Mar
IAD14:36Washington, D.C. Dulles Intl
28h 49m
2 stops
ADL10:55Adelaide
14 Mar
ADL06:00Adelaide
33h 33m
2 stops
IAD01:03Washington, D.C. Dulles Intl
$2,661
Air New Zealand
7 Mar
IAD14:36Washington, D.C. Dulles Intl
28h 49m
2 stops
ADL10:55Adelaide
14 Mar
ADL06:00Adelaide
33h 33m
2 stops
IAD01:03Washington, D.C. Dulles Intl
$2,685

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 Feb
BWI12:25Baltimore/Washington
29h 35m
2 stops
ADL09:30Adelaide
9 Mar
ADL13:55Adelaide
31h 54m
1 stop
BWI07:19Baltimore/Washington
$1,799
United Airlines
9 Feb
BWI12:25Baltimore/Washington
29h 35m
2 stops
ADL09:30Adelaide
9 Mar
ADL13:55Adelaide
29h 40m
2 stops
BWI05:05Baltimore/Washington
$1,805
United Airlines
19 Feb
IAD14:36Washington, D.C. Dulles Intl
27h 24m
1 stop
ADL09:30Adelaide
18 Mar
ADL13:55Adelaide
21h 24m
1 stop
IAD20:49Washington, D.C. Dulles Intl
$1,873

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 22 January 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

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Fri 1/5

11:00-13:55

3 stops37h 25m

Adelaide

Mon 4/5

20:00-22:28

3 stops39h 58m

$1,787

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Mon 9/2

12:25-09:30

2 stops29h 35m

Adelaide

Mon 9/3

13:55-07:19

1 stop31h 54m

$1,799

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 16/2

16:10-09:30

1 stop25h 50m

Adelaide

Mon 16/3

13:55-05:36

1 stop30h 11m

$1,799

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Wed 4/2

13:34-09:25

2 stops28h 21m

Adelaide

Wed 4/3

12:00-20:57

2 stops24h 27m

$1,801

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Mon 9/2

12:25-09:30

2 stops29h 35m

Adelaide

Mon 9/3

13:55-05:05

2 stops29h 40m

$1,805

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Wed 8/4

12:40-18:55

3 stops40h 45m

Adelaide

Sun 19/4

19:35-11:23

3 stops53h 18m

$1,810

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Mon 11/5

11:00-13:55

2 stops37h 25m

Adelaide

Sun 17/5

20:00-22:28

2 stops39h 58m

$1,814

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Mon 9/2

17:59-09:30

1 stop24h 01m

Adelaide

Mon 9/3

13:55-21:45

1 stop22h 20m

$1,817

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 9/2

18:15-09:30

1 stop23h 45m

Adelaide

Mon 9/3

13:55-06:56

1 stop31h 31m

$1,817

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Mon 9/2

13:34-09:55

2 stops28h 51m

Adelaide

Mon 9/3

06:35-23:00

2 stops30h 55m

$1,836

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

Qantas Airways and United Airlines 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

23h 34m

Direct flights

None
The fastest flight from Washington, D.C. to Adelaide takes 23h 34m
There are no direct flights from Washington, D.C. to Adelaide. There are no popular flight routes 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 23h 34m.

  • 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

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.

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1 adult
Sat 21/2
Sat 28/2

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