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$740+ Cheap flights from Washington, D.C. (WAS) to Adelaide (ADL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — ADL
Aug 7 — Aug 141
Fri 8/7
Fri 8/14
1 adult, Economy
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Find cheap flights from Washington, D.C. to Adelaide with Cheapflights

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Cheap flight deals from Washington, D.C. to Adelaide

Cheapest flights from Washington, D.C. to Adelaide
Explore the most affordable flight options available from Washington, D.C. to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 8, 2026.

This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:00 am
BWI
-
ADL
2 stops38h 35m
United Airlines
Wed 9/96:05 am
ADL
-
BWI
2 stops27h 15m
United Airlines
Deal found 7/6$1,376
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:00 am
BWI
-
ADL
2 stops37h 35m
United Airlines
Tue 9/86:00 am
ADL
-
BWI
2 stops25h 10m
United Airlines
Deal found 7/6$1,382
This United Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:40 am
BWI
-
ADL
2 stops38h 55m
United Airlines
Mon 8/108:00 pm
ADL
-
BWI
2 stops35h 10m
United Airlines
Deal found 7/5$1,383
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:00 am
BWI
-
ADL
2 stops38h 35m
United Airlines
Mon 9/77:15 am
ADL
-
BWI
3 stops42h 00m
United Airlines
Deal found 7/6$1,394
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:52 pm
BWI
-
ADL
2 stops29h 23m
United Airlines
Wed 9/96:05 am
ADL
-
BWI
2 stops27h 15m
United Airlines
Deal found 7/6$1,414
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:52 pm
BWI
-
ADL
2 stops29h 23m
United Airlines
Tue 9/86:00 am
ADL
-
BWI
2 stops25h 10m
United Airlines
Deal found 7/6$1,421
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:52 pm
BWI
-
ADL
2 stops29h 23m
United Airlines
Mon 9/77:15 am
ADL
-
BWI
3 stops42h 00m
United Airlines
Deal found 7/6$1,432
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:00 am
BWI
-
ADL
2 stops38h 35m
United Airlines
Thu 9/106:00 am
ADL
-
BWI
3 stops43h 15m
United Airlines
Deal found 7/6$1,452
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:52 pm
BWI
-
ADL
2 stops29h 23m
United Airlines
Fri 9/116:00 am
ADL
-
BWI
2 stops25h 10m
United Airlines
Deal found 7/6$1,471
This oojo deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:07 pm
BWI
-
ADL
2 stops46h 48m
Qantas Airways
Mon 11/168:00 pm
ADL
-
BWI
2 stops37h 47m
Qantas Airways
Deal found 7/5$1,476
This United deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:35 pm
BWI
-
ADL
2 stops34h 35m
Multiple Airlines
Wed 12/302:55 pm
ADL
-
BWI
1 stop30h 27m
Multiple Airlines
Deal found 7/7$1,478
This FlightHub deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/19:55 am
IAD
-
ADL
3 stops36h 30m
Multiple Airlines
Tue 11/176:00 am
ADL
-
IAD
3 stops29h 40m
Multiple Airlines
Deal found 7/5$1,532

Find flight deals from Washington, D.C. to Adelaide

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Adelaide (ADL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,376
(United Airlines)

One-way from

$740
(Kiwi.com)
Provider with most accurate pricing for Washington, D.C. (WAS)-Adelaide flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Adelaide flights.
Search Deals
From Washington, D.C. (WAS) to Adelaide
Search Deals
One-way flight from Washington, D.C. (WAS) to Adelaide
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 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

Thu 8/27

6:52 pm-1:45 pm

2 stops29h 23m

Adelaide

Tue 9/8

6:05 am-11:45 am

3 stops43h 10m

$1,432
Quickest round-trip

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Fri 8/28

5:44 pm-11:05 am

2 stops27h 51m

Adelaide

Fri 9/11

6:00 am-5:40 pm

2 stops25h 10m

$1,471

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Tue 11/24

6:35 pm-8:40 pm

2 stops34h 35m

Adelaide

Wed 12/30

2:55 pm-5:52 am

1 stop30h 27m

$1,478

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Tue 11/24

6:35 pm-2:10 pm

2 stops28h 05m

Adelaide

Wed 12/30

2:55 pm-5:52 am

1 stop30h 27m

$1,483

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Thu 8/20

6:52 pm-1:45 pm

2 stops29h 23m

Adelaide

Thu 8/27

6:05 am-11:45 am

3 stops43h 10m

$1,483

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Sun 11/1

6:35 pm-2:10 pm

2 stops28h 05m

Adelaide

Sat 11/14

6:55 pm-4:20 pm

2 stops36h 55m

$1,491

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Tue 11/3

11:30 am-1:55 pm

2 stops34h 55m

Adelaide

Mon 11/16

6:10 am-5:35 pm

2 stops26h 55m

$1,493

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Tue 11/3

8:30 am-1:55 pm

2 stops37h 55m

Adelaide

Sat 11/14

6:55 pm-4:20 pm

2 stops36h 55m

$1,497

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Sat 10/31

6:35 pm-1:00 pm

2 stops27h 55m

Adelaide

Mon 11/16

6:10 am-5:35 pm

2 stops26h 55m

$1,537

BaltimoreAdelaide

BWI - ADL

BWIADL

Baltimore/Washington

Tue 8/4

3:03 pm-10:55 am

3 stops30h 22m

Adelaide

Mon 8/10

8:00 pm-11:45 am

3 stops53h 15m

$1,576

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/6

Showing 1-10 of 40 resultsSorted by cheapest first
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Compare providers for flights from Washington, D.C. to Adelaide

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Adelaide in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Adelaide flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Adelaide flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Adelaide flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Adelaide flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Adelaide flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Washington, D.C. with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Adelaide
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Adelaide

Get insights into the airlines that provide service to Adelaide. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Adelaide. Reviews last updated July 8, 2026.
Get a feel of what it's like to fly with United Airlines from Washington, D.C. to Adelaide by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,948 reviews

Crew

8.1

Overall

7.4

Food

6.7

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
9,948 reviews
United Airlines
7.4
Good
9,948 reviews

Crew

8.1

Overall

7.4

Food

6.7

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Adelaide. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Adelaide from Washington, D.C.?

    If you book a flight to Adelaide from Washington, D.C., you will be flying to Adelaide, which is the city’s only airport. Adelaide (ADL) is located 4.1 mi from the center of Adelaide. There are 0 flights from Washington, D.C. to Adelaide per day from 1 airline.

  • How long is the flight from Washington, D.C. to Adelaide?

    A quick flight from Washington, D.C. to Adelaide can take about 27h 40m. United Airlines provides one of the quickest options available for as low as $1,668. The distance between Washington, D.C. and Adelaide is about 10437 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Washington, D.C. to Adelaide round-trip?

    Flying on Qantas Airways is currently your cheapest option to Adelaide, with prices starting at $1,167.

  • What are the most popular routes from Washington, D.C. to Adelaide?

    The most popular flight routes from Washington, D.C. to Adelaide are Baltimore/Washington - Adelaide, Washington, D.C. Reagan-National - Adelaide and Washington, D.C. Dulles Intl - Adelaide.

  • Can I find deals for flights from Washington, D.C. to Adelaide that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Adelaide flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Adelaide?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Adelaide.

  • Can I find deals for business class flights from Washington, D.C. to Adelaide?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Adelaide by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Washington, D.C. to Adelaide

Discover the top airline that operate flights from Washington, D.C. to Adelaide. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,167Average$1,223FlexibilityNo cancel feeOn-time74%

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