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Adelaide

$608+ Cheap flights from Washington 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ADL
dic. 6 — dic. 131
sáb. 12/6
sáb. 12/13
1 adult, Economy
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Find flight deals from Washington to Adelaide

Cheapest flights from Washington to Adelaide
Explore the most affordable flight options available from Washington to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 6, 2025.

This Justfly.com deal was found by Cheapflights users on 11/6. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/286:20 amPDX - ADL
2 stops40h 55mQantas Airways
mar. 1/136:05 amADL - PDX
2 stops29h 14mQantas Airways
Deal found 11/6$1,289
This Orbitz deal was found by Cheapflights users on 11/4. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/158:00 pmSEA - ADL
2 stops43h 40mMultiple Airlines
jue. 11/201:15 pmADL - SEA
2 stops24h 12mMultiple Airlines
Deal found 11/4$1,419
This Qantas Airways deal was found by Cheapflights users on 11/4. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/122:59 pmSEA - ADL
2 stops24h 21mQantas Airways
jue. 11/208:00 pmADL - SEA
2 stops40h 41mQantas Airways
Deal found 11/4$1,447
This Qantas Airways deal was found by Cheapflights users on 11/4. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/136:20 amSEA - ADL
2 stops38h 35mQantas Airways
jue. 11/208:00 pmADL - SEA
2 stops40h 41mQantas Airways
Deal found 11/4$1,484
This Qantas Airways deal was found by Cheapflights users on 11/4. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/146:20 amSEA - ADL
2 stops42h 25mQantas Airways
jue. 11/208:00 pmADL - SEA
2 stops40h 41mQantas Airways
Deal found 11/4$1,638
This Qantas Airways deal was found by Cheapflights users on 11/4. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/166:20 amSEA - ADL
2 stops44h 05mQantas Airways
jue. 11/208:00 pmADL - SEA
2 stops40h 41mQantas Airways
Deal found 11/4$1,669
This oojo deal was found by Cheapflights users on 11/4. 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.
sáb. 11/154:05 pmSEA - ADL
1 stop30h 30mQatar Airways
jue. 11/2012:35 pmADL - SEA
2 stops41h 35mQatar Airways
Deal found 11/4$1,701
This United Airlines deal was found by Cheapflights users on 11/4. 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.
dom. 11/167:28 pmSEA - ADL
2 stops24h 12mUnited Airlines
jue. 11/206:00 amADL - SEA
3 stops30h 40mUnited Airlines
Deal found 11/4$1,711
This United Airlines deal was found by Cheapflights users on 11/4. 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.
lun. 11/177:10 amSEA - ADL
2 stops33h 15mUnited Airlines
jue. 11/206:10 amADL - SEA
2 stops24h 38mUnited Airlines
Deal found 11/4$1,715
This United Airlines deal was found by Cheapflights users on 11/4. 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.
sáb. 11/1511:59 pmSEA - ADL
2 stops40h 26mUnited Airlines
jue. 11/206:00 amADL - SEA
3 stops33h 21mUnited Airlines
Deal found 11/4$1,730
This Ovago deal was found by Cheapflights users on 11/4. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/134:05 pmSEA - ADL
1 stop30h 30mQatar Airways
jue. 11/2012:35 pmADL - SEA
2 stops41h 35mQatar Airways
Deal found 11/4$1,735
This Ovago deal was found by Cheapflights users on 11/4. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/144:05 pmSEA - ADL
1 stop30h 30mQatar Airways
jue. 11/2012:35 pmADL - SEA
2 stops41h 35mQatar Airways
Deal found 11/4$1,775

Cheap flight deals from Washington to Adelaide

Keep the following information in mind while searching for Washington to Adelaide flight deals. Data was last updated noviembre 6, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$1,170
(FlightHub)

One-way from

$608
(oojo)

Popular in

January

Cheapest in

September

Average price

$1,088
Provider with most accurate pricing for Seattle/Tacoma Intl-Adelaide flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Adelaide flights.
Search Deals
From Washington to Adelaide
Search Deals
One-way flight from Washington to Adelaide
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($274 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($86 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 noviembre 6, 2025.
Use the filters below to find and compare flights from Washington to Adelaide that are best for you.

Fly from

Washington

Fly to

Adelaide

Route

Depart

Return

Price

PortlandAdelaide

PDX - ADL

PDXADL

Portland

dom. 1/11

5:50 pm-3:45 pm

2 stops27h 25m

Adelaide

sáb. 1/31

7:50 am-1:41 pm

2 stops24h 21m

$1,170

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

sáb. 11/15

8:00 pm-10:10 am

2 stops43h 40m

Adelaide

jue. 11/20

1:15 pm-6:57 pm

2 stops24h 12m

$1,419

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

mié. 11/12

2:59 pm-9:50 am

2 stops24h 21m

Adelaide

jue. 11/20

8:00 pm-6:11 pm

2 stops40h 41m

$1,447

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

jue. 11/13

6:20 am-3:25 pm

2 stops38h 35m

Adelaide

jue. 11/20

8:00 pm-6:11 pm

2 stops40h 41m

$1,484

PortlandAdelaide

PDX - ADL

PDXADL

Portland

dom. 12/28

6:20 am-5:45 pm

2 stops40h 55m

Adelaide

mar. 1/13

7:00 pm-1:41 pm

2 stops61h 11m

$1,492

PortlandAdelaide

PDX - ADL

PDXADL

Portland

dom. 12/28

11:59 pm-9:30 am

2 stops39h 01m

Adelaide

mar. 1/13

7:15 am-6:41 pm

2 stops29h 56m

$1,513

PortlandAdelaide

PDX - ADL

PDXADL

Portland

dom. 1/11

11:59 pm-9:30 am

2 stops39h 01m

Adelaide

sáb. 1/31

2:55 pm-6:48 pm

1 stop22h 23m

$1,666

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

dom. 11/16

6:20 am-8:55 pm

2 stops44h 05m

Adelaide

jue. 11/20

8:00 pm-6:11 pm

2 stops40h 41m

$1,669

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

sáb. 11/15

4:05 pm-5:05 pm

1 stop30h 30m

Adelaide

jue. 11/20

12:35 pm-11:40 am

2 stops41h 35m

$1,701

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

lun. 11/17

7:10 am-10:55 am

2 stops33h 15m

Adelaide

jue. 11/20

6:10 am-12:18 pm

2 stops24h 38m

$1,715

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 28 results
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Best time to book a flight from Washington to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Washington 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 to Adelaide

What is the cheapest time of day to fly from WA to ADL?

Find hourly flight availability from Washington to Adelaide. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 6, 2025.

One of the essential ways to save on airfare from State of Washington to Adelaide is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 34% on airfare.

Related info for your journey

Find useful and relevant information for your journey from Washington 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?

    Located just 4.1 mi from the city center, Adelaide (ADL) is the airport most travelers will use when flying to Adelaide from Washington.

  • How long is the flight from State of Washington to Adelaide?

    For as low as $1,170, Qantas Airways can have you in Adelaide from State of Washington in 27h 25m. There are 8275 mi between State of Washington and Adelaide. This flight may include one or multiple stops.

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

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

  • How can I find direct flights from Washington to Adelaide?

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

  • Can I find deals for business class flights from Washington to Adelaide?

    Yes. Cheapflights offers flight deals from Washington 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

Traveling to a place near Adelaide?

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

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Top airline flying from Washington to Adelaide

Discover the top airline that operate flights from Washington 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 noviembre 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,088Average$1,166FlexibilityNo cancel feeOn-time74%

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