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Adelaide

$598+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ADL
Apr 29 — May 61
Tue 4/29
Tue 5/6
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 April 24, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,011
(CheapTickets)

One-way from

$598
(Kiwi.com)

Popular in

January

Cheapest in

March

Average price

$1,570
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
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Highest demand for flights based on searches. 18% potential increase in price ($343 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($63 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 24, 2025.

This CheapTickets deal was found by Cheapflights users on 4/23. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/56:00 amSEA - ADL
2 stops37h 05mMultiple Airlines
Thu 6/1212:35 pmADL - SEA
2 stops26h 50mMultiple Airlines
Deal found 4/23$1,011
This Jetabroad deal was found by Cheapflights users on 4/23. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/89:40 pmPDX - ADL
3 stops42h 45mHawaiian Airlines
Sun 6/1511:30 amADL - PDX
2 stops34h 55mHawaiian Airlines
Deal found 4/23$1,458
This Gurufare deal was found by Cheapflights users on 4/23. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/214:00 pmSEA - ADL
2 stops24h 55mQantas Airways
Wed 5/2812:50 pmADL - SEA
2 stops26h 49mQantas Airways
Deal found 4/23$1,567
This Jetabroad deal was found by Cheapflights users on 4/23. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/32:55 pmSEA - ADL
3 stops32h 10mAir New Zealand
Wed 8/136:00 amADL - SEA
3 stops32h 46mAir New Zealand
Deal found 4/23$1,585
This oojo deal was found by Cheapflights users on 4/23. 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.
Sun 6/812:57 pmPDX - ADL
2 stops32h 48mQantas Airways
Sun 6/158:10 pmADL - PDX
2 stops42h 50mQantas Airways
Deal found 4/23$1,640
This Jetabroad deal was found by Cheapflights users on 4/23. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1512:09 pmPDX - ADL
2 stops30h 56mFiji Airways
Sun 5/258:55 amADL - PDX
3 stops30h 58mFiji Airways
Deal found 4/23$1,645
This Fareboom deal was found by Cheapflights users on 4/23. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/155:33 pmPDX - ADL
2 stops51h 52mMultiple Airlines
Sun 5/2511:30 amADL - PDX
2 stops35h 20mMultiple Airlines
Deal found 4/23$1,655
This FlightHub deal was found by Cheapflights users on 4/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/294:30 pmSEA - ADL
1 stop30h 50mQatar Airways
Thu 5/86:20 pmADL - SEA
2 stops34h 55mQatar Airways
Deal found 4/22$1,702
This FlightHub deal was found by Cheapflights users on 4/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/297:02 pmSEA - ADL
2 stops24h 03mFiji Airways
Thu 5/812:35 pmADL - SEA
3 stops51h 39mFiji Airways
Deal found 4/22$1,705
This American Airlines deal was found by Cheapflights users on 4/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/52:40 pmSEA - ADL
2 stops26h 15mAmerican Airlines
Thu 6/1212:45 pmADL - SEA
2 stops25h 19mAmerican Airlines
Deal found 4/23$1,811
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2112:45 pmSEA - ADL
2 stops29h 50mUnited Airlines
Wed 5/286:05 amADL - SEA
3 stops31h 36mUnited Airlines
Deal found 4/23$1,815
This Trip.com deal was found by Cheapflights users on 4/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/310:15 amSEA - ADL
1 stop28h 40mSingapore Airlines
Wed 8/139:10 amADL - SEA
1 stop40h 05mSingapore Airlines
Deal found 4/23$2,005

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 April 24, 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

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Thu 6/5

6:00 am-11:35 am

2 stops37h 05m

Adelaide

Thu 6/12

12:35 pm-10:55 pm

2 stops26h 50m

$1,011

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 6/8

9:40 pm-8:55 am

3 stops42h 45m

Adelaide

Sun 6/15

11:30 am-5:55 am

2 stops34h 55m

$1,458

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 5/21

4:00 pm-9:25 am

2 stops24h 55m

Adelaide

Wed 5/28

12:50 pm-11:09 pm

2 stops26h 49m

$1,567

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 8/3

2:55 pm-3:35 pm

3 stops32h 10m

Adelaide

Wed 8/13

6:00 am-10:16 pm

3 stops32h 46m

$1,585

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 6/8

12:57 pm-2:15 pm

2 stops32h 48m

Adelaide

Sun 6/15

8:10 pm-10:30 pm

2 stops42h 50m

$1,640

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 5/15

12:09 pm-11:35 am

2 stops30h 56m

Adelaide

Sun 5/25

8:55 am-11:23 pm

3 stops30h 58m

$1,645

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 5/15

5:33 pm-1:55 pm

2 stops51h 52m

Adelaide

Sun 5/25

11:30 am-6:20 am

2 stops35h 20m

$1,655

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Thu 6/5

2:40 pm-9:25 am

2 stops26h 15m

Adelaide

Thu 6/12

12:45 pm-9:34 pm

2 stops25h 19m

$1,811

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 5/21

12:45 pm-11:05 am

2 stops29h 50m

Adelaide

Wed 5/28

6:05 am-9:11 pm

3 stops31h 36m

$1,815

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 5/21

4:30 pm-3:50 pm

1 stop30h 50m

Adelaide

Wed 5/28

6:20 pm-12:45 pm

2 stops34h 55m

$1,900

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 22 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 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 April 24, 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 April 24, 2025.
Read reviews from past customers who have flown Fiji Airways, Singapore Airlines and Emirates 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.
Fiji Airways
8.1
Very good
188 reviews

Crew

8.5

Food

7.5

Boarding

8.2

Entertainment

7.5

Overall

8.1

Comfort

8.1

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Fiji Airways
8.1
Very good
188 reviews
Fiji Airways
8.1
Very good
188 reviews

Crew

8.5

Food

7.5

Boarding

8.2

Entertainment

7.5

Overall

8.1

Comfort

8.1

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Singapore Airlines
8.1
Very good
1,290 reviews
Fiji Airways
8.1
Very good
188 reviews

Crew

8.5

Food

7.5

Boarding

8.2

Entertainment

7.5

Overall

8.1

Comfort

8.1

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Emirates
8.0
Very good
3,205 reviews
Fiji Airways
8.1
Very good
188 reviews

Crew

8.5

Food

7.5

Boarding

8.2

Entertainment

7.5

Overall

8.1

Comfort

8.1

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Air New Zealand
8.0
Very good
469 reviews
Fiji Airways
8.1
Very good
188 reviews

Crew

8.5

Food

7.5

Boarding

8.2

Entertainment

7.5

Overall

8.1

Comfort

8.1

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Hawaiian Airlines
7.9
Good
2,393 reviews
Fiji Airways
8.1
Very good
188 reviews

Crew

8.5

Food

7.5

Boarding

8.2

Entertainment

7.5

Overall

8.1

Comfort

8.1

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!

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 Qatar Airways ($1,401), Air Canada ($1,959), and American Airlines ($2,594).

  • 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.

See more FAQs

Traveling to a place near Washington?

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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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,211Average$1,522FlexibilityNo cancel feeOn-time69%

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