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Cheap flights from Washington to Adelaide from $1,326

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 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ADL
5 Apr — 12 Apr1
1 adult

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 31 March 2025.

Round-trip from

$2,387

One-way from

$1,326

Popular in

January

Cheapest in

March

Average price

$1,855
Air Canada
  • Air Canada
  • 14/5-21/5
  • 4 total stops
  • 76h 08m total
  • Washington to Adelaide
Search Deals
15/5
  • 15/5
  • 2 total stops
  • 24h 13m total
  • Washington to Adelaide
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($812 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($156 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

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 31 March 2025.

Wed 14/514:55SEA - ADL
2 stops37h 05mAir Canada
Wed 21/520:00ADL - SEA
2 stops39h 03mAir Canada
Deal found 30/3$2,387
Wed 14/516:15SEA - ADL
2 stops29h 30mQantas Airways
Wed 21/508:00ADL - SEA
2 stops31h 39mQantas Airways
Deal found 31/3$2,512
Wed 14/516:30SEA - ADL
1 stop30h 50mQatar Airways
Wed 21/518:20ADL - SEA
2 stops34h 55mQatar Airways
Deal found 30/3$2,518
Wed 30/418:50SEA - ADL
2 stops44h 55mMultiple Airlines
Tue 24/616:30ADL - SEA
2 stops30h 00mMultiple Airlines
Deal found 30/3$2,739
Wed 30/415:05SEA - ADL
2 stops27h 20mAir New Zealand
Wed 25/606:00ADL - SEA
2 stops24h 31mAir New Zealand
Deal found 30/3$2,857
Wed 30/409:10SEA - ADL
2 stops33h 15mUnited Airlines
Wed 25/606:05ADL - SEA
3 stops31h 36mUnited Airlines
Deal found 30/3$2,914
Wed 14/517:15SEA - ADL
1 stop34h 20mEmirates
Wed 21/521:50ADL - SEA
1 stop32h 05mEmirates
Deal found 30/3$3,876

Cheapflights Fare Finder

Customise 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 647,157 searches. Data last updated 31 March 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

Wed 14/5

14:55-20:30

2 stops37h 05m

Adelaide

Wed 21/5

20:00-18:33

2 stops39h 03m

$2,387

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 14/5

16:15-14:15

2 stops29h 30m

Adelaide

Wed 21/5

08:00-23:09

2 stops31h 39m

$2,512

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 14/5

16:30-15:50

1 stop30h 50m

Adelaide

Wed 21/5

18:20-12:45

2 stops34h 55m

$2,518

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 30/4

18:50-08:15

2 stops44h 55m

Adelaide

Tue 24/6

16:30-06:00

2 stops30h 00m

$2,739

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 30/4

15:05-10:55

2 stops27h 20m

Adelaide

Wed 25/6

06:00-14:01

2 stops24h 31m

$2,857

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 30/4

09:10-10:55

2 stops33h 15m

Adelaide

Wed 25/6

06:05-21:11

3 stops31h 36m

$2,914

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 14/5

17:15-20:05

1 stop34h 20m

Adelaide

Wed 21/5

21:50-13:25

1 stop32h 05m

$3,876

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Thu 15/5

18:52-11:35

2 stops24h 13m

$1,326

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Thu 15/5

16:30-15:50

1 stop30h 50m

$2,238

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Fri 9/5

17:15-20:05

1 stop34h 20m

$2,678

Flights are sorted by cheapest return flights first.

Deals found on 31/3

Showing 1-10 of 11 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 return 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, June is the cheapest month in which you can book a flight from State of Washington to Adelaide (average of $168). Flying from State of Washington to Adelaide in October is currently the most expensive (average of $241). 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.

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 10.0 - 60.0 inches per month. July is typically the wettest month, when rainfall can reach 60.0 mm. January is typically the driest time to visit Adelaide when rainfall is around 10.0 mm.

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 21.0 C. Travellers hoping to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 11.0 C).

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 31 March 2025.
Emirates
8.0
Very Good
3,192 reviews
Check prices

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.8

Overall

8.0

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
8.0
Very Good
3,192 reviews
Emirates
8.0
Very Good
3,192 reviews
Check prices

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.8

Overall

8.0

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
8.0
Very Good
459 reviews
Emirates
8.0
Very Good
3,192 reviews
Check prices

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.8

Overall

8.0

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.
Qantas Airways
7.5
Good
813 reviews
Emirates
8.0
Very Good
3,192 reviews
Check prices

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.8

Overall

8.0

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
3,541 reviews
Emirates
8.0
Very Good
3,192 reviews
Check prices

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.8

Overall

8.0

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.
United Airlines
7.4
Good
8,614 reviews
Emirates
8.0
Very Good
3,192 reviews
Check prices

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Crew

8.3

Food

7.8

Overall

8.0

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?

    Adelaide (ADL), located 6.6 km from the city centre, is the airport you fly into when you book flights from Washington to Adelaide.

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

    For one-way options, check prices for Qatar Airways. According to our data, you can fly for as low as $2,238. Users have also found prices from $2,678 and $4,062 on Emirates and American Airlines, respectively.

  • 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 holiday 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, June is the cheapest month in which you can book a flight from State of Washington to Adelaide (average of $168). Flying from State of Washington to Adelaide in October is currently the most expensive (average of $241). 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

Travelling to a place near Washington?

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Yes, Cheapflights offers price alerts on Washington to Adelaide flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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