Find flights
When to book
Airlines
FAQs

Cheap flights from Washington to Adelaide from $1,001

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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ADL
27 Feb — 6 Mar1
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 22 February 2025.

Round-trip from

$1,945

One-way from

$1,001

Popular in

January

Cheapest in

August

Average price

$2,435
United Airlines
  • United Airlines
  • 16/3-22/3
  • 4 total stops
  • 57h 28m total
  • Washington to Adelaide
Search Deals
Air Canada
  • Air Canada
  • 7/4
  • 2 total stops
  • 24h 15m total
  • Washington to Adelaide
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($723 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($145 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 22 February 2025.

Sun 16/314:50SEA - ADL
2 stops27h 30mUnited Airlines
Sat 22/306:10ADL - SEA
2 stops29h 58mUnited Airlines
Deal found 21/2$1,945
Tue 8/409:48SEA - ADL
3 stops33h 17mMultiple Airlines
Tue 15/407:15ADL - SEA
3 stops45h 09mMultiple Airlines
Deal found 22/2$2,250
Wed 2/416:30SEA - ADL
1 stop30h 50mQatar Airways
Sun 13/412:15ADL - SEA
2 stops41h 00mQatar Airways
Deal found 21/2$2,426
Sun 6/415:05SEA - ADL
3 stops33h 55mAir New Zealand
Sun 13/411:55ADL - SEA
2 stops26h 38mAir New Zealand
Deal found 22/2$2,775
Sun 16/317:05SEA - ADL
1 stop34h 15mEmirates
Sat 22/322:40ADL - SEA
1 stop32h 25mEmirates
Deal found 21/2$3,803
Mon 7/406:00SEA - ADL
3 stops37h 20mAir Canada
Mon 14/419:00ADL - SEA
2 stops31h 23mAir Canada
Deal found 21/2$4,510
Mon 7/413:57SEA - ADL
3 stops27h 53mAlaska Airlines
Mon 14/411:00ADL - SEA
3 stops28h 53mAlaska Airlines
Deal found 21/2$6,268

Find flights from Washington to Adelaide within your budget

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 22 February 2025.

Fly from

Washington

Fly to

Adelaide

Route

Depart

Return

Price

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 16/3

14:50-11:50

2 stops27h 30m

Adelaide

Sat 22/3

06:10-18:38

2 stops29h 58m

$1,945

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Tue 8/4

09:48-11:35

3 stops33h 17m

Adelaide

Tue 15/4

07:15-11:54

3 stops45h 09m

$2,250

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 2/4

16:30-16:50

1 stop30h 50m

Adelaide

Sun 13/4

12:15-12:45

2 stops41h 00m

$2,426

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 6/4

15:05-17:30

3 stops33h 55m

Adelaide

Sun 13/4

11:55-22:03

2 stops26h 38m

$2,775

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 16/3

17:05-20:50

1 stop34h 15m

Adelaide

Sat 22/3

22:40-13:35

1 stop32h 25m

$3,803

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 7/4

06:00-11:50

3 stops37h 20m

Adelaide

Mon 14/4

19:00-09:53

2 stops31h 23m

$4,510

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 7/4

13:57-10:20

3 stops27h 53m

Adelaide

Mon 14/4

11:00-23:23

3 stops28h 53m

$6,268

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 7/4

19:05-11:50

2 stops24h 15m

$1,001

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 30/4

18:25-18:25

3 stops31h 30m

$1,630

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 7/4

10:30-12:05

3 stops33h 05m

$2,107

Flights are sorted by cheapest return flights first.

Deals found on 21/2

Showing 1-10 of 13 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.

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, 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 22 February 2025.
Emirates
8.1
Very Good
3,275 reviews
Check prices

Comfort

8.0

Overall

8.1

Entertainment

8.2

Crew

8.3

Boarding

8.1

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
3,275 reviews
Emirates
8.1
Very Good
3,275 reviews
Check prices

Comfort

8.0

Overall

8.1

Entertainment

8.2

Crew

8.3

Boarding

8.1

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
9,700 reviews
Emirates
8.1
Very Good
3,275 reviews
Check prices

Comfort

8.0

Overall

8.1

Entertainment

8.2

Crew

8.3

Boarding

8.1

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
3,275 reviews
Check prices

Comfort

8.0

Overall

8.1

Entertainment

8.2

Crew

8.3

Boarding

8.1

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
3,612 reviews
Emirates
8.1
Very Good
3,275 reviews
Check prices

Comfort

8.0

Overall

8.1

Entertainment

8.2

Crew

8.3

Boarding

8.1

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.

United Airlines
7.4
Good
8,754 reviews
Emirates
8.1
Very Good
3,275 reviews
Check prices

Comfort

8.0

Overall

8.1

Entertainment

8.2

Crew

8.3

Boarding

8.1

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?

    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 Air Canada. According to our data, you can fly for as low as $1,001. Users have also found prices from $2,107 and $2,125 on Air New Zealand and Qatar Airways, 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?

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

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.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Washington to Adelaide?

Deals for Washington to Adelaide flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Washington to Adelaide?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Adelaide from Washington.

Can Cheapflights find flights from Washington to Adelaide with no change fees?

Yes, we can. To see specific flights from Washington to Adelaide with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Washington to Adelaide become cheaper?

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.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.