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Adelaide

$639+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ADL
Feb 28 — Mar 71
Fri 2/28
Fri 3/7
1 adult, Economy
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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 February 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,211
(Air Canada)

One-way from

$639
(Air Canada)

Popular in

January

Cheapest in

August

Average price

$1,554
Provider with most accurate pricing for Seattle/Tacoma Intl-Adelaide flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Adelaide flights.
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From Washington to Adelaide
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One-way flight from Washington to Adelaide
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($295 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($59 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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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 February 23, 2025.

This Air Canada deal was found by Cheapflights users on 2/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/17:05 pmPDX - ADL
2 stops31h 25mAir Canada
Wed 3/196:00 amADL - PDX
2 stops26h 14mAir Canada
Deal found 2/23$1,124
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Fri 6/279:45 amSEA - ADL
2 stops32h 50mUnited Airlines
Fri 7/116:05 amADL - SEA
2 stops31h 06mUnited Airlines
Deal found 2/22$1,238
This Mytrip deal was found by Cheapflights users on 2/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/15:38 pmSEA - ADL
2 stops24h 07mMultiple Airlines
Wed 3/196:15 amADL - SEA
3 stops30h 24mMultiple Airlines
Deal found 2/22$1,276
This KAYAK deal was found by Cheapflights users on 2/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/24:30 pmSEA - ADL
2 stops45h 40mQatar Airways
Sun 4/1312:15 pmADL - SEA
2 stops41h 00mQatar Airways
Deal found 2/21$1,548
This United Airlines deal was found by Cheapflights users on 2/21. 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 4/87:30 pmPDX - ADL
2 stops22h 55mUnited Airlines
Tue 4/159:20 pmADL - PDX
2 stops39h 19mUnited Airlines
Deal found 2/21$1,580
This CheapOair deal was found by Cheapflights users on 2/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/13:43 pmPDX - ADL
2 stops26h 02mFiji Airways
Wed 3/196:30 amADL - PDX
3 stops33h 38mFiji Airways
Deal found 2/23$1,687
This Gotogate deal was found by Cheapflights users on 2/22. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/63:05 pmSEA - ADL
3 stops33h 55mAir New Zealand
Sun 4/1311:55 amADL - SEA
2 stops26h 38mAir New Zealand
Deal found 2/22$1,771
This Gotogate deal was found by Cheapflights users on 2/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/83:45 pmPDX - ADL
2 stops26h 40mAir New Zealand
Tue 4/156:00 amADL - PDX
3 stops28h 55mAir New Zealand
Deal found 2/21$1,802
This oojo deal was found by Cheapflights users on 2/23. 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.
Sat 3/17:15 amPDX - ADL
3 stops52h 50mQatar Airways
Wed 3/1912:50 pmADL - PDX
3 stops48h 52mQatar Airways
Deal found 2/23$2,198
This Trip.com deal was found by Cheapflights users on 2/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2710:15 amSEA - ADL
1 stop28h 40mSingapore Airlines
Fri 7/115:35 pmADL - SEA
1 stop31h 40mSingapore Airlines
Deal found 2/22$2,326
This Alaska Airlines deal was found by Cheapflights users on 2/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/273:40 pmSEA - ADL
3 stops27h 25mAlaska Airlines
Fri 7/1112:55 pmADL - SEA
3 stops27h 30mAlaska Airlines
Deal found 2/22$2,734
This Emirates deal was found by Cheapflights users on 2/22. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/75:15 pmSEA - ADL
1 stop34h 20mEmirates
Mon 4/149:50 pmADL - SEA
1 stop32h 05mEmirates
Deal found 2/22$13,200

Find flights from Washington to Adelaide within your budget

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 February 23, 2025.

Fly from

Washington

Fly to

Adelaide

Route

Depart

Return

Price

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Fri 6/27

9:45 am-11:05 am

2 stops32h 50m

Adelaide

Fri 7/11

6:05 am-8:41 pm

2 stops31h 06m

$1,238

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Tue 4/8

9:48 am-11:35 am

3 stops33h 17m

Adelaide

Tue 4/15

7:15 am-11:54 am

3 stops45h 09m

$1,436

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 4/2

4:30 pm-4:50 pm

1 stop30h 50m

Adelaide

Sun 4/13

12:15 pm-12:45 pm

2 stops41h 00m

$1,548

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Tue 4/8

7:30 pm-10:55 am

2 stops22h 55m

Adelaide

Tue 4/15

9:20 pm-8:09 pm

2 stops39h 19m

$1,580

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 4/6

3:05 pm-5:30 pm

3 stops33h 55m

Adelaide

Sun 4/13

11:55 am-10:03 pm

2 stops26h 38m

$1,771

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Tue 4/8

3:45 pm-10:55 am

2 stops26h 40m

Adelaide

Tue 4/15

6:00 am-6:25 pm

3 stops28h 55m

$1,802

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Fri 6/27

10:15 am-7:25 am

1 stop28h 40m

Adelaide

Fri 7/11

5:35 pm-8:45 am

1 stop31h 40m

$2,326

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Fri 6/27

3:40 pm-11:35 am

3 stops27h 25m

Adelaide

Fri 7/11

12:55 pm-11:55 pm

3 stops27h 30m

$2,734

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 4/7

5:15 pm-8:05 pm

1 stop34h 20m

Adelaide

Mon 4/14

9:50 pm-1:25 pm

1 stop32h 05m

$13,200

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Fri 5/9

7:15 pm-8:30 pm

2 stops32h 45m

$639

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 12 results
1
2

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.

Travel insights for flights from Washington to Adelaide

Get recent, data-driven insights about flights from Washington to Adelaide including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from State of Washington to Adelaide?

Currently, August is the cheapest month in which you can book a flight from State of Washington to Adelaide (average of $1,214). Flying from State of Washington to Adelaide in December is currently the most expensive (average of $2,057). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 February 23, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington to Adelaide as you normally would.

Rainfall in Adelaide by month

Plan your trip to Adelaide by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Adelaide ranges from 0.4 - 2.4 inches per month. July is typically the wettest month, when rainfall can reach 2.4 in. January is typically the driest time to visit Adelaide when rainfall is around 0.4 in.

Temperature in Adelaide by month

Plan your trip to Adelaide by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Adelaide, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 51.8 F).

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 February 23, 2025.
Read reviews from past customers who have flown Emirates, Alaska Airlines and Fiji Airways from Washington to Adelaide. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,276 reviews

Overall

8.1

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Emirates
8.1
Very good
3,276 reviews
Emirates
8.1
Very good
3,276 reviews

Overall

8.1

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Alaska Airlines
8.0
Very good
9,702 reviews
Emirates
8.1
Very good
3,276 reviews

Overall

8.1

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Fiji Airways
8.0
Very good
184 reviews
Emirates
8.1
Very good
3,276 reviews

Overall

8.1

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Air New Zealand
7.9
Good
460 reviews
Emirates
8.1
Very good
3,276 reviews

Overall

8.1

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Qatar Airways
7.4
Good
3,603 reviews
Emirates
8.1
Very good
3,276 reviews

Overall

8.1

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.9

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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.

  • What are the cheapest airlines to fly from State of Washington to Adelaide one-way?

    The cheapest airlines for a one-way flight from State of Washington to Adelaide are Air Canada ($639), Air New Zealand ($1,345), and Qatar Airways ($1,356).

  • 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.

  • What is the cheapest month to book a flight from State of Washington to Adelaide?

    Currently, August is the cheapest month in which you can book a flight from State of Washington to Adelaide (average of $1,214). Flying from State of Washington to Adelaide in December is currently the most expensive (average of $2,057). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 2 airlines flying from Washington to Adelaide

Discover the top 2 airlines 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 February 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air New ZealandCheapest$1,208Average$1,564FlexibilityNo cancel feeOn-time78%
United AirlinesCheapest$1,211Average$1,348FlexibilityNo cancel feeOn-time69%
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