Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Washington, D.C. to Adelaide from $778

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 17/8. 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

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

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

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
09:40 - 11:50
DCA
-
ADL
36h 40m
2 stops
Multiple Airlines Logo
16:30 - 19:53
ADL
-
DCA
40h 53m
2 stops
$1,598Multiple Airlines
Sun, 5 Apr - Wed, 15 Apr
Multiple Airlines Logo
09:00 - 11:50
IAD
-
ADL
37h 20m
2 stops
Multiple Airlines Logo
19:00 - 20:29
ADL
-
IAD
38h 59m
2 stops
$1,598Multiple Airlines
Sun, 5 Apr - Wed, 15 Apr
Multiple Airlines Logo
09:00 - 13:55
IAD
-
ADL
39h 25m
3 stops
Multiple Airlines Logo
17:15 - 21:25
ADL
-
IAD
41h 40m
3 stops
$1,621Multiple Airlines
Fri, 24 Apr - Mon, 4 May
Air Canada Logo
06:59 - 11:50
DCA
-
ADL
39h 21m
3 stops
Air Canada Logo
19:00 - 22:43
ADL
-
DCA
41h 13m
3 stops
$1,624Air Canada
Tue, 7 Apr - Mon, 13 Apr
Air Canada Logo
09:00 - 13:55
IAD
-
ADL
39h 25m
3 stops
Air Canada Logo
20:00 - 20:29
ADL
-
IAD
37h 59m
3 stops
$1,624Air Canada
Mon, 20 Apr - Mon, 27 Apr
Multiple Airlines Logo
22:14 - 11:50
IAD
-
ADL
48h 06m
2 stops
Multiple Airlines Logo
20:00 - 20:29
ADL
-
IAD
37h 59m
2 stops
$1,626Multiple Airlines
Mon, 20 Apr - Mon, 27 Apr
Singapore Airlines Logo
09:00 - 11:50
IAD
-
ADL
37h 20m
2 stops
Singapore Airlines Logo
20:00 - 20:29
ADL
-
IAD
37h 59m
2 stops
$1,676Singapore Airlines
Sun, 19 Apr - Mon, 27 Apr
EVA Air Logo
12:40 - 11:50
IAD
-
ADL
33h 40m
2 stops
EVA Air Logo
16:30 - 20:29
ADL
-
IAD
41h 29m
2 stops
$1,732EVA Air
Sat, 4 Apr - Wed, 15 Apr
Qantas Airways Logo
16:59 - 13:40
DCA
-
ADL
31h 11m
2 stops
Qantas Airways Logo
19:45 - 21:22
ADL
-
DCA
39h 07m
2 stops
$1,806Qantas Airways
Sun, 19 Apr - Sun, 26 Apr
Qantas Airways Logo
14:59 - 11:15
BWI
-
ADL
30h 46m
2 stops
Qantas Airways Logo
19:45 - 23:51
ADL
-
BWI
41h 36m
2 stops
$1,860Qantas Airways
Sat, 20 Jun - Tue, 7 Jul

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

Our best Singapore Airlines deals on Washington, D.C. to Adelaide flight tickets
Singapore Airlines
19 Apr
IAD09:00Washington, D.C. Dulles Intl
37h 20m
2 stops
ADL11:50Adelaide
27 Apr
ADL20:00Adelaide
37h 59m
2 stops
IAD20:29Washington, D.C. Dulles Intl
$1,676
Singapore Airlines
16 Apr
DCA09:40Washington, D.C. Reagan-National
38h 45m
2 stops
ADL13:55Adelaide
28 Apr
ADL20:00Adelaide
37h 23m
2 stops
DCA19:53Washington, D.C. Reagan-National
$1,945

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
20 Apr
IAD17:37Washington, D.C. Dulles Intl
27h 48m
2 stops
ADL10:55Adelaide
27 Apr
ADL12:05Adelaide
24h 09m
2 stops
IAD22:44Washington, D.C. Dulles Intl
$1,868
Air New Zealand
20 Apr
BWI17:50Baltimore/Washington
27h 35m
2 stops
ADL10:55Adelaide
29 Apr
ADL12:05Adelaide
24h 09m
2 stops
BWI22:44Baltimore/Washington
$1,933
Air New Zealand
20 Apr
BWI17:50Baltimore/Washington
27h 35m
2 stops
ADL10:55Adelaide
1 May
ADL12:05Adelaide
24h 09m
2 stops
BWI22:44Baltimore/Washington
$1,936

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 8 March 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

Sun 5/4

09:40-11:50

2 stops36h 40m

Adelaide

Wed 15/4

16:30-19:53

2 stops40h 53m

$1,598

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sun 5/4

09:00-11:50

2 stops37h 20m

Adelaide

Wed 15/4

19:00-20:29

2 stops38h 59m

$1,598

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Fri 24/4

09:00-13:55

3 stops39h 25m

Adelaide

Mon 4/5

17:15-21:25

3 stops41h 40m

$1,621

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Tue 7/4

06:59-11:50

3 stops39h 21m

Adelaide

Mon 13/4

19:00-22:43

3 stops41h 13m

$1,624

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 20/4

09:00-13:55

3 stops39h 25m

Adelaide

Mon 27/4

20:00-20:29

3 stops37h 59m

$1,624

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 20/4

22:14-11:50

2 stops48h 06m

Adelaide

Mon 27/4

20:00-20:29

2 stops37h 59m

$1,626

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sun 19/4

09:00-11:50

2 stops37h 20m

Adelaide

Mon 27/4

20:00-20:29

2 stops37h 59m

$1,676

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sat 4/4

12:40-11:50

2 stops33h 40m

Adelaide

Wed 15/4

16:30-20:29

2 stops41h 29m

$1,732
Fastest return journey

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Sun 19/4

16:59-13:40

2 stops31h 11m

Adelaide

Sun 26/4

19:45-21:22

2 stops39h 07m

$1,806

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Sat 20/6

14:59-11:15

2 stops30h 46m

Adelaide

Tue 7/7

19:45-23:51

2 stops41h 36m

$1,860

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?

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 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

27h 35m

Direct flights

None
The fastest flight from Washington, D.C. to Adelaide takes 27h 35m
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

  • 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 27h 35m.

  • 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.

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
Tue 7/4
Tue 14/4
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia